payload[.]zip | Triage

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General

Target

payload.zip
Size

2.4MB
MD5

e8c1cbed5e7568d2649aca5024c4d754
SHA1

185d41c221a2ac38a8190f250a1d2355d12a29d0
SHA256

28f79edfc5affb3fa8fbcb94e857577630397ab1b6574ef7813abbdf01c6bb1a
SHA512

91d1bd11e755bf41bab003c6cd990a800ce8d42caa6e9688069a65943f8c0c18d318e64d790b1dee8ce14005e522c9b451ecb127c8b18f19f74794f034ad24c0
SSDEEP

12288:N0SuaWyh0ojqM7v1SUKm+hGX+SJcWz9Z2kDrFv9A+i:NvvrXv1B+suRWzhlA+i

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/markov.exe

Files

payload.zip
.zip
markov.exe
.exe windows x64

36fe9e533e2addc9b2537fc41997c132

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

Imports

kernel32

GetCurrentProcessId
WaitForSingleObject
TryAcquireSRWLockExclusive
QueryPerformanceCounter
HeapAlloc
GetProcessHeap
HeapFree
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
GetModuleHandleA
GetCommandLineW
GetStdHandle
GetFileInformationByHandleEx
RtlVirtualUnwind
InitializeSListHead
GetConsoleMode
GetEnvironmentVariableW
GetModuleHandleW
FormatMessageW
GetModuleFileNameW
ExitProcess
GetFullPathNameW
GetFileInformationByHandle
GetCurrentDirectoryW
MultiByteToWideChar
WriteConsoleW
TlsGetValue
TlsSetValue
GetSystemTimeAsFileTime
SetLastError
RtlLookupFunctionEntry
GetProcAddress
RtlCaptureContext
GetCurrentThread
GetCurrentThreadId
GetCurrentProcess
AcquireSRWLockExclusive
SetThreadStackGuarantee
AddVectoredExceptionHandler
GetLastError
ReleaseSRWLockShared
ReleaseMutex
IsDebuggerPresent
UnhandledExceptionFilter
CloseHandle
ReleaseSRWLockExclusive
SetUnhandledExceptionFilter
VirtualFree
CreateFileW
VirtualAlloc
IsProcessorFeaturePresent

ntdll

RtlNtStatusToDosError
NtWriteFile
NtReadFile

vcruntime140

__CxxFrameHandler3
memcmp
memset
memmove
_CxxThrowException
__current_exception_context
__current_exception
memcpy
__C_specific_handler

api-ms-win-crt-runtime-l1-1-0

__p___argc
__p___argv
_cexit
_c_exit
_register_thread_local_exe_atexit_callback
_seh_filter_exe
_initterm
_exit
exit
_initialize_onexit_table
_initialize_narrow_environment
_register_onexit_function
_crt_atexit
terminate
_configure_narrow_argv
_set_app_type
_initterm_e
_get_initial_narrow_environment

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-stdio-l1-1-0

_set_fmode
__p__commode

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

api-ms-win-crt-heap-l1-1-0

free
_set_new_mode

Sections

.text
Size: 141KB - Virtual size: 141KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 808B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

36fe9e533e2addc9b2537fc41997c132

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ntdll

vcruntime140

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-heap-l1-1-0

Sections

.text Size: 141KB - Virtual size: 141KB

.rdata Size: 42KB - Virtual size: 42KB

.data Size: 512B - Virtual size: 808B

.pdata Size: 6KB - Virtual size: 6KB

.reloc Size: 1KB - Virtual size: 1KB

.text
Size: 141KB - Virtual size: 141KB

.rdata
Size: 42KB - Virtual size: 42KB

.data
Size: 512B - Virtual size: 808B

.pdata
Size: 6KB - Virtual size: 6KB

.reloc
Size: 1KB - Virtual size: 1KB