Malware Analysis Report

2025-01-02 03:16

Sample ID 240403-bncg8sbe92
Target 470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe
SHA256 470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52
Tags
remcos remotehost rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52

Threat Level: Known bad

The file 470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe was found to be: Known bad.

Malicious Activity Summary

remcos remotehost rat

Remcos

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Drops startup file

Executes dropped EXE

Loads dropped DLL

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

Suspicious use of SendNotifyMessage

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-03 01:17

Signatures

AutoIT Executable

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 01:17

Reported

2024-04-03 01:20

Platform

win7-20240221-en

Max time kernel

173s

Max time network

168s

Command Line

"C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe"

Signatures

Remcos

rat remcos

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Description Indicator Process Target
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Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\chrome.vbs C:\Users\Admin\AppData\Local\directory\chrome.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\directory\chrome.exe N/A

AutoIT Executable

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2408 set thread context of 2224 N/A C:\Users\Admin\AppData\Local\directory\chrome.exe C:\Windows\SysWOW64\svchost.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\directory\chrome.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe

"C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe"

C:\Users\Admin\AppData\Local\directory\chrome.exe

"C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 shgoini.com udp
US 107.175.229.143:30902 shgoini.com tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2896-10-0x0000000000130000-0x0000000000134000-memory.dmp

\Users\Admin\AppData\Local\directory\chrome.exe

MD5 c7feccd7a803a89a36a52cffe463d42f
SHA1 f8a2911a7d6a031ed6e0b1412f81780cc226720e
SHA256 3b01461290951e77529ba70d12e97a37b55fdba4dda6c7c19e142753cbbe8a50
SHA512 5a3d774a8b7cb9f90de838583f86c1ac1cc3c6e34d1b8b97638428eb072b42f7ba84bad8206b0d1cda82c013621e4da675bc613201baad8de8c934e39e44cb74

C:\Users\Admin\AppData\Local\Temp\ophiolatrous

MD5 d1f9c2f8115082d19910822ccc9e5c10
SHA1 2cb10976a5deb529dcc372015dbdb6d492bd86f6
SHA256 26fdc3781343a64e156175aafa9038d5a3751bf175401c371adaf3f7c3d1e88f
SHA512 5f56c64805e3ea031de93c7b8ecf3b286a646b2de8f0a827a1e7296526d8b357ce62817ec8b1d63bd893fdc33be1c2f456fbbc0521fea136d220439a6053f01d

C:\Users\Admin\AppData\Local\Temp\pyogenesis

MD5 5ed5fbdee0b73fbae50e27ac69ad7ae7
SHA1 283d4749e5729d7c5c3a51a6c15b1f7a47cf910f
SHA256 b049894d767c9e974b8e92f448acba5a2f86ed79dba36dbfffd2b9f2517e3881
SHA512 4034eda19cb86a9bb653210c9a746f4305f1c2b9656fa42dadadfb0fff119a09b73e9fa3d6656c7a73ba6e6cf267c0c56f55869c3c503ecccfd305d23ea0be8e

memory/2224-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-38-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-45-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-48-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2224-49-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 01:17

Reported

2024-04-03 01:19

Platform

win10v2004-20240319-en

Max time kernel

141s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe

"C:\Users\Admin\AppData\Local\Temp\470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2808 --field-trial-handle=2244,i,861925222566734100,5228329984880658054,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 167.161.23.2.in-addr.arpa udp
IE 94.245.104.56:443 tcp
GB 13.87.96.169:443 tcp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
GB 13.87.96.169:443 tcp
GB 51.140.244.186:443 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 99.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/3840-10-0x0000000003550000-0x0000000003554000-memory.dmp