Malware Analysis Report

2024-12-07 22:27

Sample ID 240408-qmsv6ade2y
Target wininit.exe
SHA256 3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3
Tags
remcos remotehost rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3

Threat Level: Known bad

The file wininit.exe was found to be: Known bad.

Malicious Activity Summary

remcos remotehost rat

Remcos

Drops startup file

Executes dropped EXE

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-08 13:23

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: behavioral2

Detonation Overview

Submitted

2024-04-08 13:23

Reported

2024-04-08 13:25

Platform

win10v2004-20240226-en

Max time kernel

154s

Max time network

159s

Command Line

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

Signatures

Remcos

rat remcos

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 3528 set thread context of 3516 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\wininit.exe

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

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

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

C:\Windows\SysWOW64\svchost.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 shgoini.com udp
US 107.175.229.143:30902 shgoini.com tcp
US 8.8.8.8:53 143.229.175.107.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

memory/3728-10-0x00000000018A0000-0x00000000018A4000-memory.dmp

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

MD5 224f7a722d220a59cdaea224e1a535ed
SHA1 406453ff728abce6d188150d19c4c3f8ee1fa89d
SHA256 f405233a645648ba30f744ce00680dab3d7495f931b8fbddd46050098d62e9cc
SHA512 12b0994486af3389486f576bcb65e52eeb566c8524d63520e9c9b695119a7eb2a0627e40b6e6a453c71a7c13ae38c601c9aea66b9c5b4ae93d74129eb83d2dc7

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

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

MD5 a5aafcbb781d0c5b2f340a29d0629577
SHA1 5885120f4413bf4256b9722c71982785f741131f
SHA256 fd31cbc5b26cd67d16c85a091779f0af58db13a956d3dc6da79d7822f8ea02cd
SHA512 9cae262aa54357bae92fa09c3fcfbb964df079d391747ef2f3673c3903e19b4f1cb5df85cf78cf8a5ba1d33614e766a4e059fd3681ae4c47a65c750e3b3b8a38

memory/3516-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-39-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-40-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-45-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/3516-47-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-08 13:23

Reported

2024-04-08 13:25

Platform

win7-20231129-en

Max time kernel

120s

Max time network

120s

Command Line

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

Signatures

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

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

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

Network

N/A

Files

memory/1364-10-0x0000000000160000-0x0000000000164000-memory.dmp