Analysis
- max time kernel
150s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
29/01/2023, 21:26
General
- Target ec78bffd668366762d3d8e235eb5dccfa4274dd6d7fbaa562f2f990607bdc0b0.exe
- Size 411KB
- Sample230129-1anqsadd49
- SHA256 ec78bffd668366762d3d8e235eb5dccfa4274dd6d7fbaa562f2f990607bdc0b0
Malware Config
Extracted
-
limerat
-
aes_key
K4L4M4rIK4L4M4rI18531337!!?
-
antivm
true
-
c2_url
https://pastebin.com/raw/iN0vMtL8
-
delay
3
-
download_payload
false
-
install
false
-
install_name
Wservices.exe
-
main_folder
Temp
-
pin_spread
false
-
sub_folder
\
-
usb_spread
false
Signatures
- LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ec78bffd668366762d3d8e235eb5dccfa4274dd6d7fbaa562f2f990607bdc0b0.exe"C:\Users\Admin\AppData\Local\Temp\ec78bffd668366762d3d8e235eb5dccfa4274dd6d7fbaa562f2f990607bdc0b0.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Xngonkweqxnfbz.exe"C:\Users\Admin\AppData\Local\Temp\Xngonkweqxnfbz.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\Qwzaqwjfp.exe"C:\Users\Admin\AppData\Local\Temp\Qwzaqwjfp.exe"2⤵
- Executes dropped EXE
- Maps connected drives based on registry
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Qwzaqwjfp.exe
Qwzaqwjfp.exe
Xngonkweqxnfbz.exe
memory/1712-144-0x0000024BFB370000-0x0000024BFB3B4000-memory.dmp
memory/1712-146-0x0000024BFBE90000-0x0000024BFBF06000-memory.dmp
memory/1712-148-0x00007FF81B2B0000-0x00007FF81BD71000-memory.dmp
memory/1712-143-0x0000024BFAEB0000-0x0000024BFAED2000-memory.dmp
memory/1712-145-0x00007FF81B2B0000-0x00007FF81BD71000-memory.dmp
memory/1816-135-0x0000000000A20000-0x0000000000AB2000-memory.dmp
memory/1816-136-0x0000000000B00000-0x0000000000B0A000-memory.dmp
memory/1816-134-0x0000000005530000-0x0000000005AD4000-memory.dmp
memory/1816-133-0x0000000004B90000-0x0000000004C2C000-memory.dmp
memory/1816-132-0x0000000000270000-0x00000000002DE000-memory.dmp
memory/2236-147-0x0000000004950000-0x00000000049B6000-memory.dmp
memory/2236-142-0x0000000000050000-0x000000000005C000-memory.dmp