limerat | 21b86512de83574c3ad44210d025e93fb28d205cfbd18825da0a64a52063b627

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2022, 12:09

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General

Target
tmp.exe
Size 28KB
Sample220902-pbphxsdfbj
SHA256 21b86512de83574c3ad44210d025e93fb28d205cfbd18825da0a64a52063b627
MD5 3d7801d573cab12f3093c219ebfe495c
SHA1 e1ad7be4ba84e44e4ee4339232b984d29c1328d1
SHA512 844418bee9dfc603211e2b7e989879b97523adc18630f0ea1b8d93377b3d5fd867a19ffd0af0ac3867d35fc5c8231a1abbbf11f24f8784ab6349afd27ac30cc5
SSDEEP 384:cB+Sbj6NKom4r+65xAH6kgvqDc0gpEkvDKNrCeJE3WNgP0bVjeNwsN4jhxUQro3C:6pomn65xw6p0gpEK45N62YNw44VxWij
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

bc1qper8ruvxp2dzgqctqtxd24nhea85gy283xmghe

Attributes

aes_key
150797
antivm
true
c2_url
https://pastebin.com/raw/03PEm7js
delay
5
download_payload
false
install
true
install_name
chrome.exe
main_folder
Temp
pin_spread
true
sub_folder
\
usb_spread
true

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4396	chrome.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	tmp.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
4048	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 4048	4928	tmp.exe	83
PID 4928 wrote to memory of 4048	4928	tmp.exe	83
PID 4928 wrote to memory of 4048	4928	tmp.exe	83
PID 4928 wrote to memory of 4396	4928	tmp.exe	85
PID 4928 wrote to memory of 4396	4928	tmp.exe	85
PID 4928 wrote to memory of 4396	4928	tmp.exe	85

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\chrome.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:4048
- C:\Users\Admin\AppData\Local\Temp\chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\chrome.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4396

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

chrome.exe

Path C:\Users\Admin\AppData\Local\Temp\chrome.exe
Size 28KB
SHA256 21b86512de83574c3ad44210d025e93fb28d205cfbd18825da0a64a52063b627
MD5 3d7801d573cab12f3093c219ebfe495c
SHA1 e1ad7be4ba84e44e4ee4339232b984d29c1328d1
SHA512 844418bee9dfc603211e2b7e989879b97523adc18630f0ea1b8d93377b3d5fd867a19ffd0af0ac3867d35fc5c8231a1abbbf11f24f8784ab6349afd27ac30cc5
SSDEEP 384:cB+Sbj6NKom4r+65xAH6kgvqDc0gpEkvDKNrCeJE3WNgP0bVjeNwsN4jhxUQro3C:6pomn65xw6p0gpEK45N62YNw44VxWij
MD5 SHA1 SHA512 SSDEEP

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chrome.exe

Path C:\Users\Admin\AppData\Local\Temp\chrome.exe
Size 28KB
SHA256 21b86512de83574c3ad44210d025e93fb28d205cfbd18825da0a64a52063b627
MD5 3d7801d573cab12f3093c219ebfe495c
SHA1 e1ad7be4ba84e44e4ee4339232b984d29c1328d1
SHA512 844418bee9dfc603211e2b7e989879b97523adc18630f0ea1b8d93377b3d5fd867a19ffd0af0ac3867d35fc5c8231a1abbbf11f24f8784ab6349afd27ac30cc5
SSDEEP 384:cB+Sbj6NKom4r+65xAH6kgvqDc0gpEkvDKNrCeJE3WNgP0bVjeNwsN4jhxUQro3C:6pomn65xw6p0gpEK45N62YNw44VxWij
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4396-140-0x0000000006870000-0x0000000006902000-memory.dmp

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memory/4928-132-0x0000000000130000-0x000000000013C000-memory.dmp

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memory/4928-133-0x0000000004970000-0x0000000004A0C000-memory.dmp

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memory/4928-134-0x0000000004A10000-0x0000000004A76000-memory.dmp

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memory/4928-135-0x0000000005630000-0x0000000005BD4000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads