Malware Analysis Report

2024-11-13 18:50

Sample ID 240713-2y95cssgkc
Target remcos_a.exe
SHA256 007355e4de840ebcec99df8316cc55de0fdd4c5bf83d758991f75b7e88ee875c
Tags
upx remcos oops 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 Overview

score
10/10

SHA256

007355e4de840ebcec99df8316cc55de0fdd4c5bf83d758991f75b7e88ee875c

Threat Level: Known bad

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

Malicious Activity Summary

upx remcos oops rat

Remcos

Remcos family

UPX packed file

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-13 23:00

Signatures

Remcos family

remcos

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-13 23:00

Reported

2024-07-13 23:05

Platform

win11-20240709-en

Max time kernel

298s

Max time network

275s

Command Line

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

Signatures

Remcos

rat remcos

UPX packed file

upx
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

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

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

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

Network

Country Destination Domain Proto
N/A 192.168.1.94:2404 tcp
N/A 192.168.1.94:2404 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2028-0-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-1-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-2-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-3-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-4-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-5-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-6-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-7-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-8-0x0000000000400000-0x000000000047D000-memory.dmp

memory/2028-9-0x0000000000400000-0x000000000047D000-memory.dmp