Analysis
- max time kernel
142s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
11/10/2023, 23:46
General
- Target DOCUMENT[2023.10.11_08-07]_2.vbs
- Size 1012KB
- Sample231011-3sb6taec29
- SHA256 a87cf1ec49b5791bd9d22875563eb6589d0d96a148317e0b7fb5256609fa3ebf
Malware Config
Extracted
-
icedid
-
361893872
Signatures
- IcedID, BokBot
IcedID is a banking trojan capable of stealing credentials.
- Blocklisted process makes network request 3 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\DOCUMENT[2023.10.11_08-07]_2.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" C://windows/Temp/0431-1.dll2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C rundll32.exe C:\Users\Admin\AppData\Roaming\yadubd1\yenaacpk1.dll,#13⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Roaming\yadubd1\yenaacpk1.dll,#14⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Modifies registry class
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
yenaacpk1.dll
yenaacpk1.dll
0431-1.dll
0431-1.dll
memory/2600-4-0x00000000011B0000-0x00000000011BD000-memory.dmp
memory/2600-6-0x00000000011B0000-0x00000000011BD000-memory.dmp
memory/3612-10-0x000001869D210000-0x000001869D25F000-memory.dmp
memory/3612-9-0x000001869D210000-0x000001869D25F000-memory.dmp
memory/3612-11-0x000001869EB50000-0x000001869EB9C000-memory.dmp
memory/3612-16-0x000001869EB50000-0x000001869EB9C000-memory.dmp
memory/3612-17-0x000001869EB50000-0x000001869EB9C000-memory.dmp
memory/3612-18-0x000001869D210000-0x000001869D25F000-memory.dmp
memory/3612-20-0x000001869EB50000-0x000001869EB9C000-memory.dmp
memory/3612-21-0x000001869EB50000-0x000001869EB9C000-memory.dmp
memory/3612-23-0x000001869EB50000-0x000001869EB9C000-memory.dmp