Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
19/07/2023, 22:34
General
- Target 7bec74560ef5bbe652f3630ffb333b7b.exe
- Size 1.6MB
- Sample230719-2g7mxabe74
- SHA256 d1e23942effbdf831fb99ceb19495a5338fbcf2872a6782c58b184b4b2b33c4d
Malware Config
Extracted
-
limerat
-
aes_key
nyancat
-
antivm
false
-
c2_url
https://pastebin.com/raw/upsAbbQq
-
delay
3
-
download_payload
false
-
install
true
-
install_name
File.exe
-
main_folder
AppData
-
pin_spread
false
-
sub_folder
\System\
-
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).
- 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 22 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7bec74560ef5bbe652f3630ffb333b7b.exe"C:\Users\Admin\AppData\Local\Temp\7bec74560ef5bbe652f3630ffb333b7b.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\System\File.exe'"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\System\File.exe"C:\Users\Admin\AppData\Roaming\System\File.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
File.exe
File.exe
File.exe
memory/1972-148-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/1972-150-0x0000000004FF0000-0x0000000005000000-memory.dmp
memory/1972-151-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/1972-152-0x0000000004FF0000-0x0000000005000000-memory.dmp
memory/4508-137-0x0000000005400000-0x0000000005410000-memory.dmp
memory/4508-138-0x0000000005EC0000-0x0000000006464000-memory.dmp
memory/4508-136-0x00000000052C0000-0x0000000005326000-memory.dmp
memory/4508-135-0x00000000051E0000-0x000000000527C000-memory.dmp
memory/4508-134-0x00000000006A0000-0x000000000083E000-memory.dmp
memory/4508-133-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/4508-149-0x00000000747C0000-0x0000000074F70000-memory.dmp