Analysis
- max time kernel
152s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/05/2024, 14:56
General
- Target 10c91da4220426ecd3fa8140a4fedc76_JaffaCakes118.exe
- Size 43KB
- Sample240503-sa6ycsce97
- SHA256 cf3a33379921b979269d10765e67924f74e533dfca0883acda96a62bb4f777e2
Malware Config
Extracted
-
njrat
-
Njrat 0.7 Golden By Hassan Amiri
-
user
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ilyapetrov48.hopto.org:1604
-
Windows Update
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reg_key
Windows Update
-
splitter
|Hassan|
Signatures
- njRAT/Bladabindi
Widely used RAT written in .NET.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Executes dropped EXE 3 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: GetForegroundWindowSpam 2 IoCs
- Suspicious use of AdjustPrivilegeToken 29 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\10c91da4220426ecd3fa8140a4fedc76_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\10c91da4220426ecd3fa8140a4fedc76_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Windows\Yandex update.exe"C:\Windows\Yandex update.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Server.exeC:\Users\Admin\AppData\Local\Temp/Server.exe1⤵
- Executes dropped EXE
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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=1408 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:81⤵
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C:\Users\Admin\AppData\Local\Temp\Server.exeC:\Users\Admin\AppData\Local\Temp/Server.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Server.exe.log
Yandex update.exe
memory/368-29-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/368-26-0x00000000053D0000-0x00000000053DA000-memory.dmp
memory/368-25-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/368-18-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/368-16-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4572-24-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4572-23-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4572-28-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4992-6-0x0000000005790000-0x0000000005822000-memory.dmp
memory/4992-17-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4992-5-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4992-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp
memory/4992-4-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/4992-3-0x0000000005C40000-0x00000000061E4000-memory.dmp
memory/4992-2-0x0000000005360000-0x00000000053FC000-memory.dmp
memory/4992-1-0x00000000009F0000-0x0000000000A02000-memory.dmp