Analysis
- max time kernel
153s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
01/04/2024, 20:44
General
- Target 7a01cfa6154cba34ff833b797d152065_JaffaCakes118.exe
- Size 173KB
- Sample240401-zja1lsfd95
- SHA256 755fb0df132dcc7daa780417e16140d05763ff20d133de81cf087512e3c07416
Malware Config
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 10 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
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C:\Users\Admin\AppData\Local\Temp\7a01cfa6154cba34ff833b797d152065_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\7a01cfa6154cba34ff833b797d152065_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "gaado" /tr '"C:\Users\Admin\AppData\Roaming\gaado.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "gaado" /tr '"C:\Users\Admin\AppData\Roaming\gaado.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3A26.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\gaado.exe"C:\Users\Admin\AppData\Roaming\gaado.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- 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=1404 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp3A26.tmp.bat
gaado.exe
memory/2036-15-0x0000000002FF0000-0x0000000003000000-memory.dmp
memory/2036-14-0x00007FFCE83B0000-0x00007FFCE8E71000-memory.dmp
memory/2036-16-0x0000000002FF0000-0x0000000003000000-memory.dmp
memory/2036-17-0x00007FFCE83B0000-0x00007FFCE8E71000-memory.dmp
memory/2036-18-0x0000000002FF0000-0x0000000003000000-memory.dmp
memory/2036-19-0x0000000002FF0000-0x0000000003000000-memory.dmp
memory/3032-3-0x0000000000EB0000-0x0000000000EB8000-memory.dmp
memory/3032-4-0x000000001B2B0000-0x000000001B2C0000-memory.dmp
memory/3032-9-0x00007FFCE8420000-0x00007FFCE8EE1000-memory.dmp
memory/3032-2-0x000000001B2B0000-0x000000001B2C0000-memory.dmp
memory/3032-1-0x00007FFCE8420000-0x00007FFCE8EE1000-memory.dmp
memory/3032-0-0x0000000000560000-0x0000000000592000-memory.dmp