Analysis
- max time kernel
301s - max time network
307s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
30/03/2024, 19:21
General
- Target Lecture10.exe
- Size 203KB
- Sample240330-x2pklscf41
- SHA256 fbb2ba93880b2f923b51f528610f4df715fcb6e397b9e9bc49783d09a891df24
Malware Config
Extracted
-
limerat
-
aes_key
1111
-
antivm
true
-
c2_url
https://pastebin.com/utedD1nd
-
delay
3
-
download_payload
false
-
install
true
-
install_name
Wservices.exe
-
main_folder
Temp
-
pin_spread
false
-
sub_folder
\
-
usb_spread
true
Signatures
- LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
- 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.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Lecture10.exe"C:\Users\Admin\AppData\Local\Temp\Lecture10.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\Wservices.exe'"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Wservices.exe"C:\Users\Admin\AppData\Local\Temp\Wservices.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
-
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=4136 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Wservices.exe
memory/552-3-0x0000000004D40000-0x0000000004DA6000-memory.dmp
memory/552-2-0x0000000004DC0000-0x0000000004E5C000-memory.dmp
memory/552-0-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/552-4-0x0000000004D30000-0x0000000004D40000-memory.dmp
memory/552-5-0x0000000005A10000-0x0000000005FB4000-memory.dmp
memory/552-1-0x0000000000380000-0x00000000003B8000-memory.dmp
memory/552-17-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/552-20-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/1384-19-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/1384-21-0x0000000004F60000-0x0000000004F70000-memory.dmp
memory/1384-22-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/1384-23-0x0000000004F60000-0x0000000004F70000-memory.dmp