Static task
static1
Behavioral task
behavioral1
Sample
vlmcs-Windows-x86.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
vlmcs-Windows-x86.exe
Resource
win10v2004-20240412-en
General
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Target
vlmcs-Windows-x86.exe.bin
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Size
52KB
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MD5
a83db3ac36bf6c660518ea41f6db700c
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SHA1
2b98346e8737e50b63e14da9989aba8b61e99ce6
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SHA256
47f5b3bbb071fda3f0540e1658a9d08d6526bfe2525288a1ba0c6d093a16bbf2
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SHA512
e88b81c70059881fbb518719366a73e47db753b409391cf710c89c2e7f19e396d012a1a98ffb4fc9d78dc8ba96051234ce6255c1a6fb8548f0b66b1b0e8987d2
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SSDEEP
1536:irbHzrCuEsJRAsWPBQ32ryCXnBLUoCsNG/WR:i31EpPC2ry8nBL
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource vlmcs-Windows-x86.exe.bin
Files
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vlmcs-Windows-x86.exe.bin.exe windows:5 windows x86 arch:x86
75e8bc1242fdb5a2ecdddc727cf370a7
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP
IMAGE_FILE_NET_RUN_FROM_SWAP
Imports
msvcrt
ferror
fgets
strtol
rename
_localtime64
vfprintf
strftime
_vsnprintf
fprintf
printf
fflush
__iob_func
free
_time64
memmove
_gmtime64
sprintf
_stricmp
exit
fclose
fseek
ftell
toupper
strrchr
_strdup
srand
fread
fopen
strncpy
_errno
strchr
_strtoi64
strerror
malloc
_strnicmp
rand
_snprintf
qsort
strncat
memcmp
memcpy
memset
shlwapi
PathFileExistsA
PathRemoveFileSpecA
dnsapi
DnsQuery_UTF8
DnsFree
ws2_32
WSAGetLastError
setsockopt
getaddrinfo
connect
getsockname
WSAStartup
ioctlsocket
getnameinfo
recv
send
closesocket
freeaddrinfo
socket
kernel32
GetStdHandle
WideCharToMultiByte
GetConsoleScreenBufferInfo
EnterCriticalSection
LeaveCriticalSection
GetModuleHandleA
GetModuleFileNameA
FormatMessageA
GetTickCount
GetLastError
GetComputerNameExA
DeleteFileA
GetCommandLineW
advapi32
CryptCreateHash
CryptGetHashParam
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptAcquireContextW
CryptImportKey
CryptSetHashParam
shell32
CommandLineToArgvW
Sections
.text Size: 21KB - Virtual size: 20KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 13KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 15KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ