Malware Analysis Report

2024-12-07 22:31

Sample ID 240409-bmydbadc4s
Target 3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe
SHA256 3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3
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

3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3

Threat Level: Known bad

The file 3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.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

2024-04-09 01:16

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

2024-04-09 01:16

Reported

2024-04-09 01:19

Platform

win7-20240221-en

Max time kernel

150s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"

Signatures

Remcos

rat remcos

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

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

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 3036 set thread context of 2288 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\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe

"C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"

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

"C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.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/1092-10-0x0000000000120000-0x0000000000124000-memory.dmp

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

MD5 2cad1ea2a8feb308706348ddc16e1cdc
SHA1 486ac7f411b90be81fe246fc16b93904cc95f7aa
SHA256 0173da8df43aac4427c9702a1013f5f0accf7f6c3ea7392052d168bd81722965
SHA512 739b156f959a7562671414bc9ce8b8d27f4003e39f07970a71f2249db668afc709e6051572335b545303dae2c1c813ffb6cff2d45a772f2e2ee670de60a97e3e

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

MD5 a5aafcbb781d0c5b2f340a29d0629577
SHA1 5885120f4413bf4256b9722c71982785f741131f
SHA256 fd31cbc5b26cd67d16c85a091779f0af58db13a956d3dc6da79d7822f8ea02cd
SHA512 9cae262aa54357bae92fa09c3fcfbb964df079d391747ef2f3673c3903e19b4f1cb5df85cf78cf8a5ba1d33614e766a4e059fd3681ae4c47a65c750e3b3b8a38

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

MD5 59aa802af60e63fe7d976d2230c8710c
SHA1 f105fac10d095b5019a048a39e666586536a30a1
SHA256 a635bcea499830d578743018ea6841affb8ab25588c8650c9d4ff2a0cbd01236
SHA512 36362896bba93b76869ae5eb6e57a1f4f11a3a6ddbb2a28de0909c870cb44006acf077edc07b8def18b3fd23215973f080c0aa9fde4635e783689c57ac3b0fb4

memory/2288-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-38-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-39-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-45-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-48-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-49-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-50-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-51-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-53-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-54-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-55-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-56-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-57-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-59-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-60-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-61-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2288-63-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-09 01:16

Reported

2024-04-09 01:19

Platform

win10v2004-20240226-en

Max time kernel

140s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe

"C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.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=4256 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 41.173.79.40.in-addr.arpa udp

Files

memory/3576-10-0x0000000001110000-0x0000000001114000-memory.dmp