Behavioral task
behavioral1
Sample
OPCLTEST.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
OPCLTEST.exe
Resource
win10v2004-20240611-en
General
-
Target
OPCLTEST.exe
-
Size
3.1MB
-
MD5
5fd6f26fbff629655eb9dccffcf09753
-
SHA1
65e0d16a60a95820c30345592a88958bbe9eb0eb
-
SHA256
040a7a4864a2d182382117a521ca952c9552a7a49bef44f9af6e6b31006fbd8f
-
SHA512
633fb29526dd3b072ffdf2958417d7ed2ba44a44b39713c5afdd2bde0609397081ac845f4478f9c9314dfa85ec13892645764c8b84320702a24b8c31b32a0b83
-
SSDEEP
49152:PvyI22SsaNYfdPBldt698dBcjHtztSaEhkvJzHoGdACfTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjH4hC
Malware Config
Extracted
quasar
1.4.1
OPCleansing
pyxoneer.airdns.org:38867
fdd05ec0-afbe-43b9-9314-ef11a7255440
-
encryption_key
13040847592E3FAD0AE6EE8038E33FD341ED1E81
-
install_name
AVEngine.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
SecurityHealthCheck
-
subdirectory
WinDenfender
Signatures
-
Quasar family
-
Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource OPCLTEST.exe
Files
-
OPCLTEST.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ