{"Id":"4c4e7664-af86-4483-858a-f59346f3d304","Tags":["driver_930da474.sys"],"Verified":"TRUE","Author":"Michael Haag","Created":"2024-09-10","MitreID":"T1068","Category":"malicious","Commands":{"Command":"sc.exe create driver_c3d48ddd.sys binPath=C:\\windows\\temp\\driver_c3d48ddd.sys type=kernel && sc.exe start driver_c3d48ddd.sys","Description":"Sophos, from time to time, has observed a threat actor deploy variants of Poortry on different machines within a single estate during an attack. These variants contain the same payload, but signed with a different certificate than the driver first seen used during the attack.","Usecase":"Elevate privileges","Privileges":"kernel","OperatingSystem":"Windows 10"},"Resources":["https://news.sophos.com/en-us/2024/08/27/burnt-cigar-2/"],"Detection":[],"Acknowledgement":{"Person":"","Handle":""},"KnownVulnerableSamples":[{"Filename":"","MD5":"475f33ff28ba2c8007f39602c5f7ecf1","SHA1":"011954de4094ae7e4562db7e749d5c66b268f1b4","SHA256":"930da474a6d1be97b54f2c81e883e14d62897aa58622e5b040e412bd36cee0a7","Signature":"","Date":"","Publisher":"","Company":"Pinchins Technology Co.,Ltd.","Description":"RWTKrl","Product":"RansomwareTerminator","ProductVersion":"1.0","FileVersion":"1.0.0.808","MachineType":"I386","OriginalFilename":"RWTKrl.sys","Imphash":"b72d2bef646e421c7a0789881378490f","Authentihash":{"MD5":"8b4bc159909565f0287091c3984cf6a7","SHA1":"a63ee75a4b4a8e4e6007cf19784ef0c9a01168ae","SHA256":"16aca71339240826d226f4adbfa73ea7b065f0f2d145d82d6ac2349d2ebba0d2"},"RichPEHeaderHash":{"MD5":"ffdf660eb1ebf020a1d0a55a90712dfb","SHA1":"3e905e3d061d0d59de61fcf39c994fcb0ec1bab3","SHA256":"2b3f99a94b7a7132854be769e27b331419c53989ef42f686d6f5ba09ddefefd6"},"Sections":{".text":{"Entropy":6.3776670329434335,"Virtual Size":"0xa628"},".rdata":{"Entropy":4.726933860725244,"Virtual Size":"0xfe4"},".data":{"Entropy":0.26030820518531467,"Virtual Size":"0x1c90"},"PAGE":{"Entropy":6.230487979741394,"Virtual Size":"0xd0e"},"INIT":{"Entropy":5.987299460734234,"Virtual Size":"0x15c2"},".rc0":{"Entropy":6.873109543439149,"Virtual Size":"0x98550"},".reloc":{"Entropy":6.626658998653637,"Virtual Size":"0x1028"},".rsrc":{"Entropy":3.298584887783697,"Virtual Size":"0x3e4"}},"MagicHeader":"50 45 0 0","CreationTimestamp":"2017-05-16 04:14:59","InternalName":"RWTKrl.sys","Copyright":"Copyright (C) 2016 Pinchins Technology Co.,Ltd.","Imports":["ntoskrnl.exe","HAL.dll"],"ExportedFunctions":"","ImportedFunctions":["RtlDeleteElementGenericTable","RtlGetElementGenericTable","RtlIsGenericTableEmpty","ObfDereferenceObject","ObfReferenceObject","ZwClose","ZwQueryValueKey","ZwOpenKey","KeWaitForSingleObject","IofCallDriver","IoBuildDeviceIoControlRequest","RtlEqualUnicodeString","ObQueryNameString","IoDeleteDevice","IoDetachDevice","IoAttachDeviceToDeviceStack","KeDelayExecutionThread","RtlInitializeGenericTable","IoCreateDevice","ExFreePoolWithTag","ExAllocatePoolWithTag","RtlCompareUnicodeString","PsSetCreateProcessNotifyRoutine","IoRegisterFsRegistrationChange","IoDeleteSymbolicLink","IoCreateSymbolicLink","ExInitializeNPagedLookasideList","IofCompleteRequest","MmMapLockedPagesSpecifyCache","PsGetCurrentProcessId","RtlTimeToTimeFields","ExSystemTimeToLocalTime","KeQuerySystemTime","ExQueueWorkItem","KeSetEvent","ExfInterlockedInsertTailList","RtlInsertElementGenericTable","RtlLookupElementGenericTable","wcsrchr","_wcsnicmp","PsGetCurrentThreadId","memcpy","wcsncpy","ZwQueryInformationFile","ZwCreateFile","PsTerminateSystemThread","ExfInterlockedRemoveHeadList","KeSetPriorityThread","KeGetCurrentThread","IoFreeIrp","IoGetTopLevelIrp","IoAllocateIrp","ObReferenceObjectByHandle","IoFileObjectType","IoCreateFileSpecifyDeviceObjectHint","PsGetVersion","IoVolumeDeviceToDosName","ObOpenObjectByPointer","PsProcessType","PsLookupProcessByProcessId","ZwQuerySymbolicLinkObject","ZwOpenSymbolicLinkObject","ZwWriteFile","ZwReadFile","ZwDeleteFile","ExAllocatePool","ObReferenceObjectByName","IoDriverObjectType","ZwDeviceIoControlFile","ObReferenceObjectByPointer","IoGetDeviceObjectPointer","swprintf","NtClose","ZwQueryInformationProcess","RtlCompareString","RtlInitString","ZwMapViewOfSection","ZwCreateSection","ZwOpenFile","KeServiceDescriptorTable","_stricmp","PsGetProcessImageFileName","PsCreateSystemThread","MmIsAddressValid","CmUnRegisterCallback","CmRegisterCallback","RtlVolumeDeviceToDosName","RtlCopyUnicodeString","memmove","_snwprintf","RtlAppendUnicodeStringToString","RtlAppendUnicodeToString","_wcsicmp","ExInitializeResourceLite","KeLeaveCriticalRegion","ExAcquireResourceExclusiveLite","KeEnterCriticalRegion","ExAcquireResourceSharedLite","ExReleaseResourceLite","RtlAnsiStringToUnicodeString","RtlInitAnsiString","_allmul","ZwDeleteValueKey","_alldiv","ZwSetInformationFile","CcPurgeCacheSection","MmFlushImageSection","CcFlushCache","ExIsResourceAcquiredExclusiveLite","KeTickCount","KeBugCheckEx","MmGetSystemRoutineAddress","memset","RtlInitUnicodeString","IoCreateNotificationEvent","KeClearEvent","_vsnwprintf","ExInterlockedPushEntrySList","ExInterlockedPopEntrySList","DbgPrint","KeInitializeEvent","RtlUnwind","ExAcquireFastMutex","KeGetCurrentIrql","HalReturnToFirmware","ExReleaseFastMutex"],"Signatures":[{"CertificatesInfo":"","SignerInfo":"","Certificates":[{"Subject":"C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services CA , G2","ValidFrom":"2012-12-21 00:00:00","ValidTo":"2020-12-30 23:59:59","Signature":"03099b8f79ef7f5930aaef68b5fae3091dbb4f82065d375fa6529f168dea1c9209446ef56deb587c30e8f9698d23730b126f47a9ae3911f82ab19bb01ac38eeb599600adce0c4db2d031a6085c2a7afce27a1d574ca86518e979406225966ec7c7376a8321088e41eaddd9573f1d7749872a16065ea6386a2212a35119837eb6","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"7e93ebfb7cc64e59ea4b9a77d406fc3b","Version":3,"CertificateType":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"d0785ad36e427c92b19f6826ab1e8020","SHA1":"365b7a9c21bd9373e49052c3e7b3e4646ddd4d43","SHA256":"c2abb7484da91a658548de089d52436175fdb760a1387d225611dc0613a1e2ff","SHA384":"eab4fe5ef90e0de4a6aa3a27769a5e879f588df5e4785aa4104debd1f81e19ea56d33e3a16e5facf99f68b5d8e3d287b"}},{"Subject":"C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services Signer , G4","ValidFrom":"2012-10-18 00:00:00","ValidTo":"2020-12-29 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"0ecff438c8febf356e04d86a981b1a50","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"e9d38360b914c8863f6cba3ee58764d3","SHA1":"4cba8eae47b6bf76f20b3504b98b8f062694a89b","SHA256":"88901d86a4cc1f1bb193d08e1fb63d27452e63f83e228c657ab1a92e4ade3976","SHA384":"e9f2a75334a9e336c5a4712eadee88d0374b0fdc273262f4e65c9040ad2793067cc076696db5279a478773485e285652"}},{"Subject":"C=CN, ST=Fujian, L=Fuzhou, O=Pinchins Technology Company Limited, OU=IT Dept, CN=Pinchins Technology Company Limited","ValidFrom":"2016-11-10 00:00:00","ValidTo":"2018-11-02 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"10a9caf34c8b7f963f76eb131ec8b9f4","Version":3,"CertificateType":"Leaf (Code Signing)","IsCodeSigning":true,"IsCA":false,"TBS":{"MD5":"c8dafabce58e752c0b7c585f23af68e5","SHA1":"06243f2dfe31293c25ba25bff90be09531921924","SHA256":"96b4f4626a4a0ef8b8d47790eb711bfa2751a5876dfc12fd5e0fb269417bea96","SHA384":"cc0c8ad8cb2e3bd3c4b8bee057d6c60475c84f31dc38a8b4cac8ad21ed44eb1c973f0d51d13fff8361e791e6ada7e548"}},{"Subject":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. , For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority , G5","ValidFrom":"2011-02-22 19:25:17","ValidTo":"2021-02-22 19:35:17","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"611993e400000000001c","Version":3,"CertificateType":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"78a717e082dcc1cda3458d917e677d14","SHA1":"4a872e0e51f9b304469cd1dedb496ee9b8b983a4","SHA256":"317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8","SHA384":"b71052da4eb9157c8c1a5d7f55df19d69b9128598b72fcca608e5b7cc7d64c43c5504b9c86355a6dc22ee40c88cc385c"}},{"Subject":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 Code Signing 2010 CA","ValidFrom":"2010-02-08 00:00:00","ValidTo":"2020-02-07 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"5200e5aa2556fc1a86ed96c9d44b33c7","Version":3,"CertificateType":"CA","IsCodeSigning":true,"IsCA":true,"TBS":{"MD5":"b30c31a572b0409383ed3fbe17e56e81","SHA1":"4843a82ed3b1f2bfbee9671960e1940c942f688d","SHA256":"03cda47a6e654ed85d932714fc09ce4874600eda29ec6628cfbaeb155cab78c9","SHA384":"bbda8407c4f9fc4e54d772f1c7fb9d30bc97e1f97ecd51c443063d1fa0644e266328781776cd5c44896c457c75f4d7da"}}],"Signer":[{"SerialNumber":"10a9caf34c8b7f963f76eb131ec8b9f4","Issuer":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 Code Signing 2010 CA","Version":1}]}],"LoadsDespiteHVCI":"TRUE"}]}