limerat | dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2022 09:18

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General

Target

HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe
Size

39KB
MD5

cd3c8d05f0af4fa28d8502f1a209d36f
SHA1

8cacf12efa67d224b6c4d52df58b6398031293e2
SHA256

dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6
SHA512

d414280e4d6af0b4314c4aae07abef698fde75bd4a65a90c81a652423a461e2292251feb041e49d2b1fd32cc6009d2d981d9aa40909e3491c57fbefc46aff98d
SSDEEP

768:8rKS6JBwNQPvfyC45N6FlYYV+Gcvj6i8t2txcT4ZrRoZX:8rIBwNuvabeFlYYo3o2t482Z

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
xdr11796
antivm
true
c2_url
https://pastebin.com/raw/Mu49qhCq
delay
3
download_payload
false
install
true
install_name
Github.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
false

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat

Executes dropped EXE 1 IoCs

Processes:

Github.exe

pid	Process
976	Github.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

Processes:

schtasks.exe

pid	Process
3484	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Github.exe

description	pid	Process
Token: SeDebugPrivilege	976	Github.exe
Token: SeDebugPrivilege	976	Github.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe

description	pid	Process	procid_target
PID 4784 wrote to memory of 3484	4784	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe	84
PID 4784 wrote to memory of 3484	4784	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe	84
PID 4784 wrote to memory of 3484	4784	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe	84
PID 4784 wrote to memory of 976	4784	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe	86
PID 4784 wrote to memory of 976	4784	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe	86
PID 4784 wrote to memory of 976	4784	HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe	86

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Tasker.gen-dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\Github.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:3484
- C:\Users\Admin\AppData\Roaming\Github.exe
  "C:\Users\Admin\AppData\Roaming\Github.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Github.exe

Filesize
39KB

MD5
cd3c8d05f0af4fa28d8502f1a209d36f

SHA1
8cacf12efa67d224b6c4d52df58b6398031293e2

SHA256
dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6

SHA512
d414280e4d6af0b4314c4aae07abef698fde75bd4a65a90c81a652423a461e2292251feb041e49d2b1fd32cc6009d2d981d9aa40909e3491c57fbefc46aff98d

Download Submit
C:\Users\Admin\AppData\Roaming\Github.exe

Filesize
39KB

MD5
cd3c8d05f0af4fa28d8502f1a209d36f

SHA1
8cacf12efa67d224b6c4d52df58b6398031293e2

SHA256
dc949c9cb7ee87cd8fc9f456201c153416a0abecce741da9d7425f6afeb6f6f6

SHA512
d414280e4d6af0b4314c4aae07abef698fde75bd4a65a90c81a652423a461e2292251feb041e49d2b1fd32cc6009d2d981d9aa40909e3491c57fbefc46aff98d

Download Submit
memory/976-134-0x0000000000000000-mapping.dmp

Download
memory/976-138-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/976-139-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3484-133-0x0000000000000000-mapping.dmp

Download
memory/4784-132-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/4784-137-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download