Malware Analysis Report

2024-11-16 13:10

Sample ID 220701-vwahdsbhb9
Target 018
SHA256 985750482ea09493ba540c98fe42e99bc6462bd8a24561f6fd24616e08930f0e
Tags
limerat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

985750482ea09493ba540c98fe42e99bc6462bd8a24561f6fd24616e08930f0e

Threat Level: Known bad

The file 018 was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Executes dropped EXE

Checks computer location settings

Maps connected drives based on registry

Suspicious use of SetThreadContext

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-01 17:19

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-01 17:19

Reported

2022-07-01 17:21

Platform

win10v2004-20220414-en

Max time kernel

64s

Max time network

67s

Command Line

"C:\Users\Admin\AppData\Local\Temp\018.exe"

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\nin\698657.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\018.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\018.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\018.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\018.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2668 set thread context of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2668 wrote to memory of 5020 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Windows\SysWOW64\schtasks.exe
PID 2668 wrote to memory of 5020 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Windows\SysWOW64\schtasks.exe
PID 2668 wrote to memory of 5020 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Windows\SysWOW64\schtasks.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 2668 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Local\Temp\018.exe
PID 1328 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Windows\SysWOW64\schtasks.exe
PID 1328 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Windows\SysWOW64\schtasks.exe
PID 1328 wrote to memory of 4300 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Windows\SysWOW64\schtasks.exe
PID 1328 wrote to memory of 4764 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Roaming\nin\698657.exe
PID 1328 wrote to memory of 4764 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Roaming\nin\698657.exe
PID 1328 wrote to memory of 4764 N/A C:\Users\Admin\AppData\Local\Temp\018.exe C:\Users\Admin\AppData\Roaming\nin\698657.exe

Processes

C:\Users\Admin\AppData\Local\Temp\018.exe

"C:\Users\Admin\AppData\Local\Temp\018.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KFLBFmhmeDA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA2A8.tmp"

C:\Users\Admin\AppData\Local\Temp\018.exe

"{path}"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\nin\698657.exe'"

C:\Users\Admin\AppData\Roaming\nin\698657.exe

"C:\Users\Admin\AppData\Roaming\nin\698657.exe"

Network

Country Destination Domain Proto
US 8.253.208.113:80 tcp
IE 20.50.73.9:443 tcp
US 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp

Files

memory/2668-130-0x00000000005E0000-0x000000000066C000-memory.dmp

memory/2668-131-0x00000000054C0000-0x0000000005A64000-memory.dmp

memory/2668-132-0x0000000005010000-0x00000000050A2000-memory.dmp

memory/2668-133-0x00000000051D0000-0x00000000051DA000-memory.dmp

memory/2668-134-0x00000000074E0000-0x000000000757C000-memory.dmp

memory/5020-135-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA2A8.tmp

MD5 174cb48b6f7574eb7f2d0a499c62f07c
SHA1 c625b23b8b51000129cfff966a4135a24998c7b8
SHA256 954b109fd5bab1906e52420d1a1e078e8459cb6127ba1b49fbc1c7350a41b09f
SHA512 2d0ba7649536d6baefaf5b69bca8ab14056e71512687169f66be2f05b08676b4a34640bdf7e18eefea64eef7c89dcab0cd64238a0e0346fc7ff59c859cc104ac

memory/1328-137-0x0000000000000000-mapping.dmp

memory/1328-138-0x0000000000400000-0x000000000040C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\018.exe.log

MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

memory/1328-140-0x00000000053B0000-0x0000000005416000-memory.dmp

memory/4300-141-0x0000000000000000-mapping.dmp

memory/4764-142-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\nin\698657.exe

MD5 5e21556c9129aea00638daa35c919efa
SHA1 9840bdb3530088b0028d9ca973e26c08ee508789
SHA256 985750482ea09493ba540c98fe42e99bc6462bd8a24561f6fd24616e08930f0e
SHA512 487f6a25f8461b172f04be56707e5a32c637cdc3e7884fe92c00b5cb85f868bc725f828d3b5537dfa78c4b4ce00fa00e306e83d9e4cd737faf07eefd32dc9664

C:\Users\Admin\AppData\Roaming\nin\698657.exe

MD5 5e21556c9129aea00638daa35c919efa
SHA1 9840bdb3530088b0028d9ca973e26c08ee508789
SHA256 985750482ea09493ba540c98fe42e99bc6462bd8a24561f6fd24616e08930f0e
SHA512 487f6a25f8461b172f04be56707e5a32c637cdc3e7884fe92c00b5cb85f868bc725f828d3b5537dfa78c4b4ce00fa00e306e83d9e4cd737faf07eefd32dc9664