Behavioral task
behavioral1
Sample
WeChatApi.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
WeChatApi.dll
Resource
win10v2004-20240508-en
General
-
Target
WeChatApi.dll
-
Size
5.1MB
-
MD5
0e63bf50d23032690ab3267dc2c0c26f
-
SHA1
9695728ba7f9cdfe0abf801be8a5f84ff9550393
-
SHA256
6e0727cce9200ec3c3edae71a58803b3e6a251269842ef06fd1357bf2257f779
-
SHA512
75808967633b3ff671cc62e97da8ce6357e0216147c716c1abfdb3fd07ef6dabc6691612ef16cf37ecfa9a5660189195323d799d6424e1887f893d22ca4fd3a2
-
SSDEEP
98304:6M7HJZ+Fomz8GZS2t3bYUPmwu+y8srBZtfqboA8YylCT4v7sgRfu+mrvc:6Cj+FlE2t9Pm4ErPJq+Y6+4v7sgRGJv
Malware Config
Signatures
-
resource yara_rule sample vmprotect -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource WeChatApi.dll
Files
-
WeChatApi.dll.dll windows:6 windows x86 arch:x86
e25af10aef3490ec861e4c28ea5a7ccc
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
ws2_32
inet_pton
wldap32
ord41
crypt32
CertFreeCertificateChain
normaliz
IdnToAscii
kernel32
GetVersionExA
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress
user32
ShowWindow
GetProcessWindowStation
GetUserObjectInformationW
advapi32
RegEnumKeyExA
bcrypt
BCryptGenRandom
dbghelp
SymFromAddr
Sections
.text Size: - Virtual size: 3.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 873KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 81KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.vmp0 Size: - Virtual size: 1.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.vmp1 Size: 5.1MB - Virtual size: 5.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 233B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ