limerat | 76ccff988772b8703f093376be4b17204eb75ea5c94bfd698a956d03623826e4 | Triage

Analysis

max time kernel
300s
max time network
298s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 13:06

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General

Target

Google.exe
Size

31KB
MD5

cc893a8b514d6874965dd29c0c473732
SHA1

69f56d454e6facba1eadffbdc7c2bf826b01ceaf
SHA256

369caea879ce15a7146b74e59ac7e172faa742d053634bfa436637c150c0c85a
SHA512

9ce978051ec948e2178a2cbbaf3b72d8367b0b711772ab7c903c34362c0ad848d152fd73babdeca5b86a775460075f526e42ddd4a0062b7b0330b45d495ac9e9
SSDEEP

384:71B+Sbj6NKGHU637AHtKnDqD1Hg3IWcvDKNrCeJE3WNgW1+PgpQB6SDi5GbQro3j:7vpG0637wtJA3IWS45NL+PgSB4g8jEP

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
Venom
antivm
true
c2_url
https://pastebin.com/raw/9YkEF3aU
delay
3
download_payload
false
install
true
install_name
Google.exe
main_folder
Temp
pin_spread
true
sub_folder
\system\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/9YkEF3aU
download_payload
false
install
false
pin_spread
false
usb_spread
false

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	Google.exe

Executes dropped EXE 1 IoCs

pid	Process
4396	Google.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

flow	ioc
16	pastebin.com
17	pastebin.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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.

Scheduled Task/Job

pid	Process
652	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4396	Google.exe
Token: SeDebugPrivilege	4396	Google.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 652	920	Google.exe	91
PID 920 wrote to memory of 652	920	Google.exe	91
PID 920 wrote to memory of 652	920	Google.exe	91
PID 920 wrote to memory of 4396	920	Google.exe	93
PID 920 wrote to memory of 4396	920	Google.exe	93
PID 920 wrote to memory of 4396	920	Google.exe	93

C:\Users\Admin\AppData\Local\Temp\Google.exe
"C:\Users\Admin\AppData\Local\Temp\Google.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:920
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\system\Google.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:652
- C:\Users\Admin\AppData\Local\Temp\system\Google.exe
  "C:\Users\Admin\AppData\Local\Temp\system\Google.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Web Service

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Google.exe.log

Filesize
709B

MD5
8a1197be130e48aa5aeeafd43eb6bb9f

SHA1
cb790c7c216e41524348eaa0e5b74926e78dbfc6

SHA256
547474087ec8f71dfd32b76f9b74c86f9844addf5082df37562a2c2c0cae4bfb

SHA512
4ad9d8dbbc253c8d7b1c2b4ec5f115c770f02bdbbc21ca0b422e251a3a98331e169c5062cabf7da81d5ae0d295b3778ef105ef82709df1a4ace71be288b8f166

Download Submit
C:\Users\Admin\AppData\Local\Temp\system\Google.exe

Filesize
31KB

MD5
cc893a8b514d6874965dd29c0c473732

SHA1
69f56d454e6facba1eadffbdc7c2bf826b01ceaf

SHA256
369caea879ce15a7146b74e59ac7e172faa742d053634bfa436637c150c0c85a

SHA512
9ce978051ec948e2178a2cbbaf3b72d8367b0b711772ab7c903c34362c0ad848d152fd73babdeca5b86a775460075f526e42ddd4a0062b7b0330b45d495ac9e9

Download Submit
memory/920-3-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/920-0-0x0000000074FAE000-0x0000000074FAF000-memory.dmp

Filesize
4KB

Download
memory/920-4-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/920-5-0x00000000061F0000-0x0000000006794000-memory.dmp

Filesize
5.6MB

Download
memory/920-2-0x0000000005540000-0x00000000055DC000-memory.dmp

Filesize
624KB

Download
memory/920-1-0x0000000000C80000-0x0000000000C8E000-memory.dmp

Filesize
56KB

Download
memory/920-16-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4396-17-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4396-18-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4396-19-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4396-20-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download