Analysis
- max time kernel
150s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
06/03/2023, 02:56
General
- Target 32696f5d14f82da2b483b853946a88eac8ef47abf8b163446011fd4eb37f06f9.exe
- Size 29KB
- Sample230306-dff7kaad46
- SHA256 32696f5d14f82da2b483b853946a88eac8ef47abf8b163446011fd4eb37f06f9
Malware Config
Extracted
-
limerat
-
aes_key
mrrobot
-
antivm
false
-
c2_url
https://pastebin.com/raw/mndrG70y
-
delay
3
-
download_payload
false
-
install
true
-
install_name
yes.exe
-
main_folder
AppData
-
pin_spread
false
-
sub_folder
\pok\
-
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
- 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). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 21 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\32696f5d14f82da2b483b853946a88eac8ef47abf8b163446011fd4eb37f06f9.exe"C:\Users\Admin\AppData\Local\Temp\32696f5d14f82da2b483b853946a88eac8ef47abf8b163446011fd4eb37f06f9.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\Roaming\pok\yes.exe'"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\pok\yes.exe"C:\Users\Admin\AppData\Roaming\pok\yes.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
yes.exe
yes.exe
yes.exe
memory/828-133-0x0000000000B80000-0x0000000000B8C000-memory.dmp
memory/828-134-0x0000000005530000-0x00000000055CC000-memory.dmp
memory/828-135-0x00000000055D0000-0x0000000005636000-memory.dmp
memory/828-136-0x0000000005720000-0x0000000005730000-memory.dmp
memory/828-137-0x00000000062E0000-0x0000000006884000-memory.dmp
memory/3464-148-0x0000000002870000-0x0000000002880000-memory.dmp
memory/3464-149-0x0000000002870000-0x0000000002880000-memory.dmp