Behavioral task
behavioral1
Sample
55b8fbe45fb5c73e0ef4cc69c494498d3e1ba332576caefcf7cc5d6fb4c2f9e8.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
55b8fbe45fb5c73e0ef4cc69c494498d3e1ba332576caefcf7cc5d6fb4c2f9e8.exe
Resource
win10v2004-20230703-en
General
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Target
55b8fbe45fb5c73e0ef4cc69c494498d3e1ba332576caefcf7cc5d6fb4c2f9e8
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Size
2.2MB
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MD5
df8a61117ccf188c9b4d0c16765d4601
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SHA1
fea6dc2651b4c043ffa7dcb9644b6c87edf79cf2
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SHA256
55b8fbe45fb5c73e0ef4cc69c494498d3e1ba332576caefcf7cc5d6fb4c2f9e8
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SHA512
cd83faca69b60e0bc7add4aed51ba01e6de9b6e8c156e20248cbea00948540be8616df1115b72009e37aa4125c6ff6954cd0dd2dd06ef7adbe297d2da04f288d
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SSDEEP
49152:fT0UlpKOSxRWtnSgSrDKQX8RD19eaW51/t6WPr7X3egz:iOSfSeaWPl1n3e
Malware Config
Extracted
cobaltstrike
http://38.147.171.167:80/jquery-3.3.2.slim.min.js
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user_agent
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Referer: http://code.jquery.com/ Accept-Encoding: gzip, deflate User-Agent: Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 55b8fbe45fb5c73e0ef4cc69c494498d3e1ba332576caefcf7cc5d6fb4c2f9e8
Files
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55b8fbe45fb5c73e0ef4cc69c494498d3e1ba332576caefcf7cc5d6fb4c2f9e8.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: 696KB - Virtual size: 695KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 734KB - Virtual size: 734KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 103KB - Virtual size: 454KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/4 Size: 512B - Virtual size: 295B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/19 Size: 143KB - Virtual size: 142KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/32 Size: 27KB - Virtual size: 26KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/46 Size: 512B - Virtual size: 48B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/65 Size: 255KB - Virtual size: 255KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/78 Size: 147KB - Virtual size: 147KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/90 Size: 48KB - Virtual size: 47KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 13KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.symtab Size: 108KB - Virtual size: 108KB
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ