Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
31/08/2024, 07:40
General
- Target a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe
- Size 254KB
- Sample240831-jhjclaseph
- SHA256 a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9
Malware Config
Extracted
-
limerat
-
antivm
false
-
c2_url
https://pastebin.com/raw/sf0NTYv4
-
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 6 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 behavior: EnumeratesProcesses 25 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe"C:\Users\Admin\AppData\Local\Temp\a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe"1⤵
- Checks computer location settings
- 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\Wservices.exe'"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\Wservices.exe"C:\Users\Admin\AppData\Roaming\Wservices.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Wservices.exe
memory/2316-0-0x0000000074C52000-0x0000000074C53000-memory.dmp
memory/2316-1-0x0000000074C50000-0x0000000075201000-memory.dmp
memory/2316-2-0x0000000074C50000-0x0000000075201000-memory.dmp
memory/2316-15-0x0000000074C50000-0x0000000075201000-memory.dmp
memory/3084-17-0x0000000074C50000-0x0000000075201000-memory.dmp
memory/3084-16-0x0000000074C50000-0x0000000075201000-memory.dmp
memory/3084-18-0x0000000074C50000-0x0000000075201000-memory.dmp