killmbr | Icb Temp Woofer[.]exe

General

Target
Icb Temp Woofer.exe
Size 149KB
Sample260717-mljpbacy2t
SHA256 5536a0db0635e1e08bec0edc99d1d2e3359cb797c850d69844a16ab4cc433b2c
MD5 e372814977186ce7888ea942bafda582
SHA1 507d075a85b23f6ea5780ca5a8e4dbf3798f0c2d
SHA512 a726d2491c2757ac337a7902cdf9b4bff2fbcb56bf79d684aceefe8425a1062fb27612fa808e1014bc53c7668e08f30ab919ed1a2dfa33a4d8f1d9c7ad500a3b
SSDEEP 3072:UVqoCl/YgjxEufVU0TbTyDDalRDFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWp:UsLqdufVUNDavFWFWFWFWFWFWFWFWFWE
TLSH
T165E32813AE50542FE855C9F028A5F66ABB155F361F90EE03B6D6BB0436B254372F230B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

wiper trojan killmbr

Malware Config

Signatures

Family: KillMBR
KillMBR is a trojan that attempts to overwrite the Master Boot Record.
wiper trojan killmbr

Detects KillMBR 1 IoCs

resource	yara_rule
sample	family_killmbr

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Icb Temp Woofer.exe

File Explorer

Icb Temp Woofer.exe

.exe 149KB

Icb Temp Woofer.exe

IMPHASH 8c16c795b57934183422be5f6df7d891
SHA256 5536a0db0635e1e08bec0edc99d1d2e3359cb797c850d69844a16ab4cc433b2c
MD5 e372814977186ce7888ea942bafda582
SHA1 507d075a85b23f6ea5780ca5a8e4dbf3798f0c2d
SHA512 a726d2491c2757ac337a7902cdf9b4bff2fbcb56bf79d684aceefe8425a1062fb27612fa808e1014bc53c7668e08f30ab919ed1a2dfa33a4d8f1d9c7ad500a3b
SSDEEP 3072:UVqoCl/YgjxEufVU0TbTyDDalRDFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWFWp:UsLqdufVUNDavFWFWFWFWFWFWFWFWFWE
TLSH
T165E32813AE50542FE855C9F028A5F66ABB155F361F90EE03B6D6BB0436B254372F230B
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects KillMBR
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

4

Entry point

10508

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE

PDB paths

msvbvm60

EVENT_SINK_GetIDsOfNames ord690 _CIcos _adj_fptan __vbaStrI4 __vbaVarVargNofree __vbaFreeVar __vbaLenBstr __vbaLateIdCall __vbaPut3 __vbaEnd __vbaFreeVarList _adj_fdiv_m64 EVENT_SINK_Invoke __vbaRaiseEvent __vbaFreeObjList ord516 __vbaStrErrVarCopy ord517 _adj_fprem1 __vbaRecAnsiToUni ord519 __vbaCopyBytes __vbaStrCat __vbaLsetFixstr __vbaRecDestruct __vbaSetSystemError ord661 __vbaHresultCheckObj __vbaNameFile _adj_fdiv_m32 Zombie_GetTypeInfo __vbaAryDestruct ord669 ord593 __vbaExitProc ord594 __vbaOnError __vbaObjSet _adj_fdiv_m16i __vbaObjSetAddref _adj_fdivr_m16i ord598 __vbaFpR4 ord705 __vbaStrFixstr _CIsin ord631 ord709 ord525 __vbaChkstk __vbaFileClose EVENT_SINK_AddRef __vbaGenerateBoundsError __vbaGet3 __vbaStrCmp ord529 __vbaGet4 __vbaPutOwner3 __vbaAryConstruct2 __vbaVarTstEq __vbaI2I4 DllFunctionCall __vbaFpUI1 __vbaRedimPreserve __vbaStrR4 _adj_fpatan __vbaLateIdCallLd Zombie_GetTypeInfoCount __vbaRedim __vbaRecUniToAnsi EVENT_SINK_Release __vbaNew ord600 __vbaUI1I2 _CIsqrt EVENT_SINK_QueryInterface __vbaExceptHandler ord712 __vbaStrToUnicode ord606 _adj_fprem _adj_fdivr_m64 ord714 ord609 __vbaFPException ord319 __vbaGetOwner3 __vbaUbound ord535 __vbaFileSeek ord537 _CIlog __vbaErrorOverflow __vbaFileOpen ord648 ord570 __vbaNew2 __vbaInStr _adj_fdiv_m32i ord572 _adj_fdivr_m32i __vbaStrCopy __vbaI4Str __vbaFreeStrList _adj_fdivr_m32 _adj_fdiv_r ord100 __vbaI4Var ord689 __vbaAryLock __vbaVarAdd ord611 ord320 __vbaVarDup __vbaStrToAnsi ord321 __vbaFpI2 __vbaFpI4 ord616 __vbaLateMemCallLd _CIatan __vbaStrMove ord618 __vbaCastObj __vbaR8IntI4 ord650 _allmul _CItan __vbaAryUnlock _CIexp __vbaFreeObj __vbaFreeStr ord580 ord581

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