StepClient[.]exe

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General

Target

StepClient.exe
Size

16.9MB
MD5

3de5358264a41ac85d98c38808182e91
SHA1

0533a6a33bb8806927d47f37518658b2947b5744
SHA256

8094a8c981f13553f95aae6130a182b63de1527fc935f48f17b7ca2c9b619b96
SHA512

a3790331c6be04569bc53170fda84411e1b8dbd9104d1ad3c3ae1d28a7dcffde6cae1aec385a49fc9106ecab0b47d614d7813180386410026e29b561c7074e79
SSDEEP

393216:LSVksteh8w2uBbT0XwZEzboiND5deGdeRSbtSnKIpg5HrWF3m3ubs:LSVkdiw2IbTZGo2DneGMSbkKIuJ3ub

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
StepClient.exe

Files

StepClient.exe
.exe windows:6 windows x64 arch:x64

38bdd6af544a7f239116d0a0a3d68b09

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

WaitForSingleObject
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
ExitProcess
LoadLibraryA
GetModuleHandleA
GetProcAddress

user32

GetWindowThreadProcessId

advapi32

AllocateAndInitializeSid

ole32

CoSetProxyBlanket

oleaut32

SysFreeString

msvcp140

_Wcscoll

urlmon

URLDownloadToFileA

ws2_32

recv

ntdll

RtlCaptureContext

vcruntime140_1

__CxxFrameHandler4

vcruntime140

memcpy

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

_seh_filter_exe

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

malloc

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

__p__commode

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

remove

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

strcpy_s

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

__setusermatherr

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

_configthreadlocale

Sections

.text
Size: - Virtual size: 98KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.O.a
Size: - Virtual size: 10.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.h@]
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.AE$
Size: 16.9MB - Virtual size: 16.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 276B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 469B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

38bdd6af544a7f239116d0a0a3d68b09

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

ole32

oleaut32

msvcp140

urlmon

ws2_32

ntdll

vcruntime140_1

vcruntime140

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

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

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

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

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

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

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

Sections

.text Size: - Virtual size: 98KB

.rdata Size: - Virtual size: 24KB

.data Size: - Virtual size: 2KB

.pdata Size: - Virtual size: 3KB

.O.a Size: - Virtual size: 10.1MB

.h@] Size: 3KB - Virtual size: 3KB

.AE$ Size: 16.9MB - Virtual size: 16.9MB

.reloc Size: 512B - Virtual size: 276B

.rsrc Size: 512B - Virtual size: 469B

.text
Size: - Virtual size: 98KB

.rdata
Size: - Virtual size: 24KB

.data
Size: - Virtual size: 2KB

.pdata
Size: - Virtual size: 3KB

.O.a
Size: - Virtual size: 10.1MB

.h@]
Size: 3KB - Virtual size: 3KB

.AE$
Size: 16.9MB - Virtual size: 16.9MB

.reloc
Size: 512B - Virtual size: 276B

.rsrc
Size: 512B - Virtual size: 469B