Analysis
- max time kernel
148s - max time network
100s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
28/12/2023, 21:32
General
- Target f998121d523426ed0afed3d21dfb0d69.exe
- Size 380KB
- Sample231228-1d16aacfc9
- SHA256 7a9a5279a3ced8e2aabcb0edf0c1f5f935d33b49807de894774ad8f9c51a02f8
Malware Config
Extracted
-
limerat
-
antivm
false
-
c2_url
https://pastebin.com/raw/tDBQY6gT
-
download_payload
false
-
install
false
-
pin_spread
false
-
usb_spread
false
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
- Loads dropped DLL 2 IoCs
- Obfuscated with Agile.Net obfuscator 2 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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\f998121d523426ed0afed3d21dfb0d69.exe"C:\Users\Admin\AppData\Local\Temp\f998121d523426ed0afed3d21dfb0d69.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\System32\Window Security Notification.exe'"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\System32\Window Security Notification.exe"C:\Users\Admin\System32\Window Security Notification.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
AgileDotNetRT.dll
Window Security Notification.exe
Window Security Notification.exe
memory/736-24-0x0000000075070000-0x0000000075621000-memory.dmp
memory/736-10-0x0000000073D90000-0x0000000073DEB000-memory.dmp
memory/736-0-0x0000000075070000-0x0000000075621000-memory.dmp
memory/736-2-0x0000000075070000-0x0000000075621000-memory.dmp
memory/736-27-0x0000000073580000-0x00000000735A8000-memory.dmp
memory/736-11-0x0000000073580000-0x00000000735A8000-memory.dmp
memory/736-1-0x0000000001710000-0x0000000001720000-memory.dmp
memory/4368-30-0x0000000075070000-0x0000000075621000-memory.dmp
memory/4368-25-0x0000000075070000-0x0000000075621000-memory.dmp
memory/4368-32-0x00000000735B0000-0x00000000735D8000-memory.dmp
memory/4368-31-0x0000000073D90000-0x0000000073DEB000-memory.dmp
memory/4368-26-0x00000000007C0000-0x00000000007D0000-memory.dmp
memory/4368-33-0x00000000007C0000-0x00000000007D0000-memory.dmp
memory/4368-34-0x0000000075070000-0x0000000075621000-memory.dmp
memory/4368-35-0x00000000735B0000-0x00000000735D8000-memory.dmp
memory/4368-36-0x00000000007C0000-0x00000000007D0000-memory.dmp