Analysis
- max time kernel
150s - max time network
121s - platform
windows10_x64 - resource
win10v20210408 - submitted
09/09/2021, 11:54
General
- Target dfb409cde1f17541e80cf52218abbce46cd3968aed4c85b44079aa7c3d333dbe.dll
- Size 1.7MB
- Sample210909-n2yc3sbcbq
- SHA256 dfb409cde1f17541e80cf52218abbce46cd3968aed4c85b44079aa7c3d333dbe
Malware Config
Signatures
- Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
- Dridex Shellcode 1 IoCs
Detects Dridex Payload shellcode injected in Explorer process.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 4 IoCs
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 12 IoCs
- Suspicious use of FindShellTrayWindow 8 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dfb409cde1f17541e80cf52218abbce46cd3968aed4c85b44079aa7c3d333dbe.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\RdpSaUacHelper.exeC:\Windows\system32\RdpSaUacHelper.exe1⤵
-
C:\Users\Admin\AppData\Local\qjGDaGZk\RdpSaUacHelper.exeC:\Users\Admin\AppData\Local\qjGDaGZk\RdpSaUacHelper.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\wbengine.exeC:\Windows\system32\wbengine.exe1⤵
-
C:\Users\Admin\AppData\Local\m3ZDyhL1n\wbengine.exeC:\Users\Admin\AppData\Local\m3ZDyhL1n\wbengine.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\iexpress.exeC:\Windows\system32\iexpress.exe1⤵
-
C:\Users\Admin\AppData\Local\fOGpiGF\iexpress.exeC:\Users\Admin\AppData\Local\fOGpiGF\iexpress.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/512-159-0x0000000140000000-0x00000001401B6000-memory.dmp
memory/776-117-0x0000012160470000-0x0000012160477000-memory.dmp
memory/776-114-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-128-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-154-0x00007FFE179F0000-0x00007FFE179F2000-memory.dmp
memory/3052-134-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-135-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-133-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-136-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-137-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-138-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-139-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-140-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-141-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-142-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-143-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-144-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-152-0x00007FFE178B4560-0x00007FFE178B5560-memory.dmp
memory/3052-132-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-130-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-131-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-129-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-127-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-126-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-119-0x0000000001320000-0x0000000001321000-memory.dmp
memory/3052-125-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-120-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-122-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-121-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-124-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3052-123-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3872-168-0x0000000140000000-0x00000001401B5000-memory.dmp