Analysis
- max time kernel
898s - max time network
900s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
- submitted
07/10/2025, 19:41
General
- Target BitcoinGenerator.exe
- Size 190KB
- Sample251007-yd535askz3
- SHA256 515cb7f19d5273972f71c0f25c8ea05f0bba3608efd9b8db0734f9214cc18518
Malware Config
Extracted
-
limerat
-
1MQLGFqwsmwXELfrdBw6kXkr3GgpfQzW4m
-
aes_key
NYANCAT
-
antivm
false
-
c2_url
https://pastebin.com/raw/DDTVwwbu
-
delay
3
-
download_payload
false
-
install
true
-
install_name
system.exe
-
main_folder
AppData
-
pin_spread
true
-
sub_folder
\
-
usb_spread
true
Signatures
- LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
- Limerat family
- 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).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 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\BitcoinGenerator.exe"C:\Users\Admin\AppData\Local\Temp\BitcoinGenerator.exe"1⤵
- System Location Discovery: System Language Discovery
- 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.exe'"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\system.exe"C:\Users\Admin\AppData\Roaming\system.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
system.exe
memory/3308-14-0x00000000056A0000-0x00000000056B0000-memory.dmp
memory/3308-15-0x0000000007000000-0x0000000007092000-memory.dmp
memory/3308-16-0x00000000056A0000-0x00000000056B0000-memory.dmp
memory/5824-0-0x0000000000DB0000-0x0000000000DE6000-memory.dmp
memory/5824-1-0x0000000005710000-0x00000000057AC000-memory.dmp
memory/5824-2-0x00000000057B0000-0x0000000005816000-memory.dmp
memory/5824-3-0x00000000059B0000-0x00000000059C0000-memory.dmp
memory/5824-4-0x00000000063F0000-0x0000000006996000-memory.dmp