amsi[.]7z | Triage

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General

Target

amsi.7z
Size

51KB
MD5

82deaff6975123b3439846434de5889e
SHA1

31d6aa9ada49511610be9ccc6f066d1407f81b55
SHA256

eb56b706082b62cd1ad45bdcb7be3b14e9d69d6d0e809032a7de565b4b783c23
SHA512

21bfca67e023490607c496787d14757799f0b5055bac9c31779a6467691683fcecdf46d17a86bc790f045695bc8d8b392cd2716cb6b6401e659524cb5d9d76ef
SSDEEP

1536:I6rLXqNs24V8nB3ZIwPxrgEbdf5nWVqw2:/GNsul9Px7b0qN

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/amsi.exe

Files

amsi.7z
.7z

Password: infected
amsi.exe
.exe windows:6 windows x64 arch:x64

Password: infected

b12eb33b2fa364697db12e6e6ae63e92

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

PDB Paths

amsi.pdb

Imports

api-ms-win-core-synch-l1-2-0

WakeByAddressSingle
WaitOnAddress
WakeByAddressAll

kernel32

GetProcAddress
GetConsoleMode
HeapFree
VirtualProtect
IsProcessorFeaturePresent
GetLastError
ResumeThread
CreateProcessA
VirtualAllocEx
WriteProcessMemory
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetEnvironmentVariableW
WideCharToMultiByte
RtlVirtualUnwind
ReleaseMutex
CreateMutexA
GetCurrentProcessId
GetCurrentProcess
WaitForSingleObjectEx
HeapReAlloc
CloseHandle
RtlLookupFunctionEntry
RtlCaptureContext
GetCurrentDirectoryW
SetLastError
GetProcessHeap
HeapAlloc
lstrlenW
WriteConsoleW
MultiByteToWideChar
GetStdHandle
WaitForSingleObject
LoadLibraryA
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW

ntdll

NtWriteFile
RtlNtStatusToDosError

vcruntime140

__CxxFrameHandler3
memcmp
memset
__current_exception_context
__current_exception
memcpy
__C_specific_handler

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

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

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

__setusermatherr

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

__p__commode
_set_fmode

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

_configthreadlocale

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

_set_new_mode

Sections

.text
Size: 88KB - Virtual size: 88KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 25KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 596B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: infected

b12eb33b2fa364697db12e6e6ae63e92

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

api-ms-win-core-synch-l1-2-0

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: 88KB - Virtual size: 88KB

.rdata Size: 25KB - Virtual size: 24KB

.data Size: 512B - Virtual size: 480B

.pdata Size: 3KB - Virtual size: 2KB

.reloc Size: 1024B - Virtual size: 596B

.text
Size: 88KB - Virtual size: 88KB

.rdata
Size: 25KB - Virtual size: 24KB

.data
Size: 512B - Virtual size: 480B

.pdata
Size: 3KB - Virtual size: 2KB

.reloc
Size: 1024B - Virtual size: 596B