Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
19/04/2024, 17:39
General
- Target 9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe
- Size 28KB
- Sample240419-v8d2cabf8y
- SHA256 9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe
Malware Config
Extracted
-
limerat
-
aes_key
Kronic
-
antivm
true
-
c2_url
https://pastebin.com/raw/jxx7yjgK
-
delay
3
-
download_payload
false
-
install
true
-
install_name
MSIbuilder.exe
-
main_folder
AppData
-
pin_spread
true
-
sub_folder
\Service Windows\
-
usb_spread
true
Extracted
-
limerat
-
antivm
false
-
c2_url
https://pastebin.com/raw/jxx7yjgK
-
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
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 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\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.exe"C:\Users\Admin\AppData\Local\Temp\9bb9a1974de3b7ca8de3fd9afd7fb0f92d8f24c33b651584b2d7e2d0bd0da2fe.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\Service Windows\MSIbuilder.exe'"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe"C:\Users\Admin\AppData\Roaming\Service Windows\MSIbuilder.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
MSIbuilder.exe
memory/1612-1-0x0000000075040000-0x00000000757F0000-memory.dmp
memory/1612-0-0x00000000001C0000-0x00000000001CC000-memory.dmp
memory/1612-2-0x0000000004B70000-0x0000000004C0C000-memory.dmp
memory/1612-3-0x0000000004C60000-0x0000000004CC6000-memory.dmp
memory/1612-4-0x0000000004E20000-0x0000000004E30000-memory.dmp
memory/1612-5-0x0000000005960000-0x0000000005F04000-memory.dmp
memory/1612-15-0x0000000075040000-0x00000000757F0000-memory.dmp
memory/4936-16-0x0000000075040000-0x00000000757F0000-memory.dmp
memory/4936-17-0x0000000005240000-0x0000000005250000-memory.dmp
memory/4936-18-0x0000000075040000-0x00000000757F0000-memory.dmp
memory/4936-19-0x0000000005240000-0x0000000005250000-memory.dmp