Analysis
- max time kernel
153s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
27/06/2024, 01:58
General
- Target 1446d50ecf1384818a85d24238464f1d_JaffaCakes118.exe
- Size 732KB
- Sample240627-cdys6azckp
- SHA256 c506bdc545ffd804df9b91ce4d1320945c07d3b13e5a8c45abe7aee9b06d0428
Malware Config
Signatures
- Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Modifies registry class 1 IoCs
- Suspicious use of AdjustPrivilegeToken 48 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1446d50ecf1384818a85d24238464f1d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\1446d50ecf1384818a85d24238464f1d_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\run.exe"C:\Users\Admin\AppData\Local\Temp\run.exe"2⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windupdt\winupdate.exe"C:\Windupdt\winupdate.exe"3⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3660 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
run.exe
memory/1164-35-0x0000000002890000-0x0000000002891000-memory.dmp
memory/1164-45-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/1884-5-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4048-46-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/4048-48-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/4048-50-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/4048-52-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/4048-54-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/4048-56-0x0000000000400000-0x00000000004C0000-memory.dmp
memory/4048-58-0x0000000000400000-0x00000000004C0000-memory.dmp