yowsp[.]exe | Triage

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General

Target

yowsp.exe
Size

5.2MB
MD5

09f2cae2c546ffbe0fbd4c32ad32da0d
SHA1

69bdfcce242b966e108a9438f0f8e365b3306adc
SHA256

f0636bf296ac2cc8e5bd67f58c2ad6e7c0fbce09e1a8c0e46a50e9f1b0ee8ff0
SHA512

a5b3090b117d2409e5600506b485894c312a0437ec4e364ee9e107e80a3acdee8e463a5e23eea2f05cec89ef9f0d6d21d0014a1044d7e83c0244efc43987f806
SSDEEP

98304:Ndkz7Od+wuru6EYtJRlF+yIry50jSqtwgEPbd:Nizid+tispFHK03Td

Score

7^/10

vmprotect

Malware Config

Signatures

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
sample	vmprotect

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
yowsp.exe

Files

yowsp.exe
.exe windows:6 windows x64 arch:x64

a26a05e2dec3e87f7b91acac6cfa30af

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

SetConsoleTitleW
FlsSetValue
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress

user32

MessageBoxW
GetProcessWindowStation
GetProcessWindowStation
GetUserObjectInformationW

advapi32

FreeSid

shell32

ShellExecuteExW

msvcp140

?showmanyc@?$basic_streambuf@_WU?$char_traits@_W@std@@@std@@MEAA_JXZ

urlmon

URLDownloadToFileW

vcruntime140_1

__CxxFrameHandler4

vcruntime140

__std_terminate

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

malloc

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

srand

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

_getch

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

_crt_atexit

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

_time64

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

_configthreadlocale

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

__setusermatherr

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

_set_fmode

wtsapi32

WTSSendMessageW

Sections

.text
Size: - Virtual size: 27KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: - Virtual size: 17KB

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: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.vmp0
Size: - Virtual size: 3.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.vmp1
Size: 5.2MB - Virtual size: 5.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 220B

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

a26a05e2dec3e87f7b91acac6cfa30af

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

msvcp140

urlmon

vcruntime140_1

vcruntime140

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

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

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

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

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

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

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

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

wtsapi32

Sections

.text Size: - Virtual size: 27KB

.rdata Size: - Virtual size: 17KB

.data Size: - Virtual size: 2KB

.pdata Size: - Virtual size: 1KB

.vmp0 Size: - Virtual size: 3.4MB

.vmp1 Size: 5.2MB - Virtual size: 5.2MB

.reloc Size: 512B - Virtual size: 220B

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

.text
Size: - Virtual size: 27KB

.rdata
Size: - Virtual size: 17KB

.data
Size: - Virtual size: 2KB

.pdata
Size: - Virtual size: 1KB

.vmp0
Size: - Virtual size: 3.4MB

.vmp1
Size: 5.2MB - Virtual size: 5.2MB

.reloc
Size: 512B - Virtual size: 220B

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