Behavioral task
behavioral1
Sample
f81f84087bf1f241beb8e2f2df604434d1fb023dce5882c752a538bcf6e29a28.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
f81f84087bf1f241beb8e2f2df604434d1fb023dce5882c752a538bcf6e29a28.exe
Resource
win10v2004-20230915-en
General
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Target
f81f84087bf1f241beb8e2f2df604434d1fb023dce5882c752a538bcf6e29a28
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Size
1.2MB
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MD5
f0edfbd9ada5f01204bf795db82a792b
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SHA1
c66a9879503beae006b66fd546b3b5f6b7e050d6
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SHA256
f81f84087bf1f241beb8e2f2df604434d1fb023dce5882c752a538bcf6e29a28
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SHA512
08c522614fb5d30695ed8c75e7139db160c470cd92afe6b14ce554aaffe20a7aa78f4d6293bebc4b825e4f46e966f43bd6860e5673ad4852ccdaa22a9ccee5f1
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SSDEEP
24576:vNVznzW1xLeb8kcz4lW5C9KqILZGHEl/:bzW1fqILY
Malware Config
Signatures
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Cobalt Strike reflective loader 1 IoCs
Detects the reflective loader used by Cobalt Strike.
resource yara_rule sample cobalt_reflective_dll -
Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource f81f84087bf1f241beb8e2f2df604434d1fb023dce5882c752a538bcf6e29a28
Files
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f81f84087bf1f241beb8e2f2df604434d1fb023dce5882c752a538bcf6e29a28.exe windows:4 windows x86
0d6b2433b9af4c1382ad94472120d6be
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Imports
winmm
timeBeginPeriod
ws2_32
WSAGetOverlappedResult
ntdll
NtWaitForSingleObject
advapi32
CryptReleaseContext
CryptGenRandom
CryptAcquireContextW
kernel32
WriteFile
WriteConsoleW
WaitForSingleObject
VirtualFree
VirtualAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetThreadPriority
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
LoadLibraryA
LoadLibraryW
GetThreadContext
GetSystemInfo
GetStdHandle
GetQueuedCompletionStatus
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerA
CreateThread
CreateEventA
CloseHandle
AddVectoredExceptionHandler
Sections
.text Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 9KB - Virtual size: 91KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.symtab Size: 512B - Virtual size: 4B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ