Behavioral task
behavioral1
Sample
befc458c1846fc218ebc30ee87fa4868592ce79ea582bbc47a8745a5ee2523a4.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
befc458c1846fc218ebc30ee87fa4868592ce79ea582bbc47a8745a5ee2523a4.exe
Resource
win10v2004-20230703-en
General
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Target
befc458c1846fc218ebc30ee87fa4868592ce79ea582bbc47a8745a5ee2523a4
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Size
1.4MB
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MD5
447e36ab1302706c00b152be53b2ed82
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SHA1
b5db68c6dc137461fc4e941431365f27b60cad83
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SHA256
befc458c1846fc218ebc30ee87fa4868592ce79ea582bbc47a8745a5ee2523a4
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SHA512
4f2178d289b63a0a18d7289cac9cf33ab6d62fc4f28aca7600e9a53e1cedd82013fcfff5923d5634cbf8919a791dc221a9aa372906d6c01ec55d30c63822f4b2
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SSDEEP
24576:aUZTFbyWKjsK39lnNRl5bQ/X/JK3SgOVlxSteBv9Qz1:aqFbyWKP39FNU8SgOzxSS9Qz1
Malware Config
Extracted
cobaltstrike
http://206.119.171.91:80/nfT5
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user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; BOIE9;ENUS)
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource befc458c1846fc218ebc30ee87fa4868592ce79ea582bbc47a8745a5ee2523a4
Files
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befc458c1846fc218ebc30ee87fa4868592ce79ea582bbc47a8745a5ee2523a4.exe windows x64
f0ea7b7844bbc5bfa9bb32efdcea957c
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
Imports
kernel32
WriteFile
WriteConsoleW
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
PostQueuedCompletionStatus
LoadLibraryA
LoadLibraryW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler
Sections
.text Size: 610KB - Virtual size: 609KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 671KB - Virtual size: 670KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 104KB - Virtual size: 454KB
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
.reloc Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.symtab Size: 512B - Virtual size: 4B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ