limerat | 228d45f589db33d9f9afb5fe00f1c0dca51227c1b255d34fe3b9068ce82a47d4

Analysis

max time kernel
158s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19-10-2022 17:01

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General

Target

4867caf94a1222a561e9b443a4e01ee6.exe
Size

29KB
MD5

4867caf94a1222a561e9b443a4e01ee6
SHA1

7903ad13a5ba397ff5d79191a089804b003699ff
SHA256

228d45f589db33d9f9afb5fe00f1c0dca51227c1b255d34fe3b9068ce82a47d4
SHA512

7016835d4044a7ce2e7b4019ed185a1f47b3c1e43ca48cc821c7d9e0c9b1cee8a8f80125eb6246e16310348297a864d31e2dcefbdfae944d4976a03f3d5f910c
SSDEEP

768:IqptXM6N2wHiBN0HY45NPhRXKV1TdPKEj:IqpF2wH4IlnmgE

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

31u93LeqAjhmu48kA6JYNVSyGshBNvnqNS

Attributes

aes_key
%D*G-KaN
antivm
false
c2_url
https://pastebin.com/raw/3YAbmSCc
delay
6
download_payload
false
install
true
install_name
AudioDriver.exe
main_folder
UserProfile
pin_spread
true
sub_folder
\Windows\
usb_spread
true

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2248	AudioDriver.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	4867caf94a1222a561e9b443a4e01ee6.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

pid	Process
1756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2248	AudioDriver.exe
2248	AudioDriver.exe
2248	AudioDriver.exe
2248	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	AudioDriver.exe
Token: SeDebugPrivilege	2248	AudioDriver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 1756	4888	4867caf94a1222a561e9b443a4e01ee6.exe	90
PID 4888 wrote to memory of 1756	4888	4867caf94a1222a561e9b443a4e01ee6.exe	90
PID 4888 wrote to memory of 1756	4888	4867caf94a1222a561e9b443a4e01ee6.exe	90
PID 4888 wrote to memory of 2248	4888	4867caf94a1222a561e9b443a4e01ee6.exe	92
PID 4888 wrote to memory of 2248	4888	4867caf94a1222a561e9b443a4e01ee6.exe	92
PID 4888 wrote to memory of 2248	4888	4867caf94a1222a561e9b443a4e01ee6.exe	92

C:\Users\Admin\AppData\Local\Temp\4867caf94a1222a561e9b443a4e01ee6.exe
"C:\Users\Admin\AppData\Local\Temp\4867caf94a1222a561e9b443a4e01ee6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\Windows\AudioDriver.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:1756
- C:\Users\Admin\Windows\AudioDriver.exe
  "C:\Users\Admin\Windows\AudioDriver.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2248

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

Replay Monitor

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Downloads

C:\Users\Admin\Windows\AudioDriver.exe

Filesize
29KB

MD5
4867caf94a1222a561e9b443a4e01ee6

SHA1
7903ad13a5ba397ff5d79191a089804b003699ff

SHA256
228d45f589db33d9f9afb5fe00f1c0dca51227c1b255d34fe3b9068ce82a47d4

SHA512
7016835d4044a7ce2e7b4019ed185a1f47b3c1e43ca48cc821c7d9e0c9b1cee8a8f80125eb6246e16310348297a864d31e2dcefbdfae944d4976a03f3d5f910c

Download Submit
C:\Users\Admin\Windows\AudioDriver.exe

Filesize
29KB

MD5
4867caf94a1222a561e9b443a4e01ee6

SHA1
7903ad13a5ba397ff5d79191a089804b003699ff

SHA256
228d45f589db33d9f9afb5fe00f1c0dca51227c1b255d34fe3b9068ce82a47d4

SHA512
7016835d4044a7ce2e7b4019ed185a1f47b3c1e43ca48cc821c7d9e0c9b1cee8a8f80125eb6246e16310348297a864d31e2dcefbdfae944d4976a03f3d5f910c

Download Submit
memory/2248-140-0x0000000006D90000-0x0000000006E22000-memory.dmp

Filesize
584KB

Download
memory/4888-132-0x0000000000570000-0x000000000057C000-memory.dmp

Filesize
48KB

Download
memory/4888-133-0x0000000004EB0000-0x0000000004F4C000-memory.dmp

Filesize
624KB

Download
memory/4888-134-0x0000000004F50000-0x0000000004FB6000-memory.dmp

Filesize
408KB

Download
memory/4888-135-0x0000000005B80000-0x0000000006124000-memory.dmp

Filesize
5.6MB

Download