StepClient[.]exe

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General

Target

StepClient.exe
Size

12.5MB
MD5

505dbda185706f26383ab4752b41f115
SHA1

2eb6e203be0347252ecce52a2149d3f9fc0f39f7
SHA256

759593ddd15bcf0f700d9269e0ff76a4d294d747a5af4c0be761f656487cc7f5
SHA512

9bda6540ed2d863f1094fd3586f3c06f3e3b22afb4924ce8fd17fca0693aab3285068a9b9a495592f41552533b9a171f3db01c5309b2213749bdba8f3a2a8711
SSDEEP

393216:JGuVua6Ym6P1cE/o4yf4u9dKsPMx7/IMmX8J+x:JxVua6YtcEnufKsP27/IMmscx

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

.'A^
Size: - Virtual size: 7.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.!4i
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.[?*
Size: 12.5MB - Virtual size: 12.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 264B

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

.'A^ Size: - Virtual size: 7.4MB

.!4i Size: 3KB - Virtual size: 3KB

.[?* Size: 12.5MB - Virtual size: 12.5MB

.reloc Size: 512B - Virtual size: 264B

.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

.'A^
Size: - Virtual size: 7.4MB

.!4i
Size: 3KB - Virtual size: 3KB

.[?*
Size: 12.5MB - Virtual size: 12.5MB

.reloc
Size: 512B - Virtual size: 264B

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