Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
18/05/2024, 01:08
General
- Target 47415dc54f54a881e0fdd0c02c26b994cf881af13f849428153ae4e42bc12ed6.exe
- Size 28KB
- Sample240518-bhjdlacf84
- SHA256 47415dc54f54a881e0fdd0c02c26b994cf881af13f849428153ae4e42bc12ed6
Malware Config
Extracted
-
limerat
-
aes_key
1111
-
antivm
true
-
c2_url
https://pastebin.com/raw/Qik1mEQY
-
delay
3
-
download_payload
false
-
install
true
-
install_name
WinRAR.exe
-
main_folder
AppData
-
pin_spread
false
-
sub_folder
\System\
-
usb_spread
false
Extracted
-
limerat
-
antivm
false
-
c2_url
https://pastebin.com/raw/Qik1mEQY
-
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 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\47415dc54f54a881e0fdd0c02c26b994cf881af13f849428153ae4e42bc12ed6.exe"C:\Users\Admin\AppData\Local\Temp\47415dc54f54a881e0fdd0c02c26b994cf881af13f849428153ae4e42bc12ed6.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\WinRAR.exe'"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\System\WinRAR.exe"C:\Users\Admin\AppData\Roaming\System\WinRAR.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
WinRAR.exe
memory/1492-15-0x0000000075120000-0x00000000758D0000-memory.dmp
memory/1492-17-0x0000000075120000-0x00000000758D0000-memory.dmp
memory/1492-18-0x0000000075120000-0x00000000758D0000-memory.dmp
memory/1892-0-0x000000007512E000-0x000000007512F000-memory.dmp
memory/1892-1-0x0000000000170000-0x000000000017C000-memory.dmp
memory/1892-2-0x0000000004B00000-0x0000000004B9C000-memory.dmp
memory/1892-3-0x0000000004BA0000-0x0000000004C06000-memory.dmp
memory/1892-4-0x0000000075120000-0x00000000758D0000-memory.dmp
memory/1892-5-0x00000000057C0000-0x0000000005D64000-memory.dmp
memory/1892-16-0x0000000075120000-0x00000000758D0000-memory.dmp