Behavioral task
behavioral1
Sample
20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f.exe
Resource
win7-20240221-en
General
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Target
20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f
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Size
160KB
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MD5
1e6391be5e36af6623bed1899bf420b6
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SHA1
87dbfd001d7b059f29de7bb3b33793148725e925
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SHA256
20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f
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SHA512
63bdd925fd8af8d38912f652b5e40ab4c86e417361e33e8d7c370159f7a28b9f216cd7ba74100606f3c586345f287b2399b17c1821312dd8f7bab2b17ceed8c8
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SSDEEP
1536:kVdmQr3Z5IfQmv81aypP1s3yX+tlehTz5:008JOfQm01F9s3yX+fehTt
Malware Config
Signatures
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Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f
Files
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20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f.exe windows:4 windows x86 arch:x86
114d582a5621464ba45b2f4e302c876b
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
ReleaseMutex
Sleep
lstrcpyA
CreateProcessA
TerminateProcess
ExitThread
GetStartupInfoA
GetModuleHandleA
WaitForSingleObject
GetModuleFileNameA
CreateFileA
SetFilePointer
WriteFile
lstrcpynA
lstrlenA
OpenMutexA
GetComputerNameA
ExitProcess
GetCurrentProcess
GetCurrentThread
CloseHandle
CreateThread
LoadLibraryA
GetProcAddress
GetSystemDefaultUILanguage
GetTickCount
iphlpapi
GetAdaptersInfo
GetIfTable
mfc42
ord823
ord825
msvcrt
_controlfp
__set_app_type
__p__fmode
__p__commode
_adjust_fdiv
__setusermatherr
_initterm
__getmainargs
_acmdln
exit
_XcptFilter
_exit
_except_handler3
strstr
strcspn
strncpy
atoi
time
srand
rand
realloc
free
malloc
sprintf
shell32
ShellExecuteA
ShellExecuteExA
SHChangeNotify
shlwapi
SHDeleteKeyA
user32
wsprintfA
ws2_32
setsockopt
recv
__WSAFDIsSet
select
send
WSAIoctl
WSAStartup
htons
inet_ntoa
htonl
socket
connect
closesocket
inet_addr
sendto
WSACleanup
Sections
UPX0 Size: 56KB - Virtual size: 56KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 20KB - Virtual size: 20KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 80KB - Virtual size: 80KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE