Malware Analysis Report

2025-01-02 03:37

Sample ID 240509-2lc9vsaf7t
Target GDVCDDD.tmp.zip
SHA256 be32aacbb47498a6126f1f1b2318be29431ebd6fbd09812a61d734b6c1f14574
Tags
upx remcos 1218202300 rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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

be32aacbb47498a6126f1f1b2318be29431ebd6fbd09812a61d734b6c1f14574

Threat Level: Known bad

The file GDVCDDD.tmp.zip was found to be: Known bad.

Malicious Activity Summary

upx remcos 1218202300 rat

Remcos

UPX packed file

AutoIT Executable

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-09 22:39

Signatures

UPX packed file

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

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
N/A N/A N/A N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-09 22:39

Reported

2024-05-09 22:40

Platform

win7-20240221-en

Max time kernel

2s

Max time network

8s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-05-09 22:39

Reported

2024-05-09 22:40

Platform

win10v2004-20240508-en

Max time kernel

0s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 22:39

Reported

2024-05-09 22:42

Platform

win7-20240419-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.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

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2124 set thread context of 2348 N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe C:\Windows\SysWOW64\svchost.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe

"C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 softwareupdatexkwre.duckdns.org udp
US 104.223.119.206:45682 softwareupdatexkwre.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2124-0-0x00000000009B0000-0x0000000000B73000-memory.dmp

memory/2124-11-0x0000000000160000-0x0000000000164000-memory.dmp

memory/2348-12-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-14-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-15-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-16-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2124-17-0x00000000009B0000-0x0000000000B73000-memory.dmp

memory/2348-18-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-19-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-20-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-21-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-24-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-25-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-26-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-27-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-28-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-29-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-30-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-31-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2348-32-0x0000000000400000-0x000000000047F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 22:39

Reported

2024-05-09 22:42

Platform

win10v2004-20240508-en

Max time kernel

92s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe"

Signatures

UPX packed file

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

AutoIT Executable

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe

"C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\AWB JGS-002-20240507 DOCUNMENTS.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2556 -ip 2556

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 696

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
BE 2.17.107.98:443 www.bing.com tcp
US 8.8.8.8:53 98.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/2556-0-0x0000000000800000-0x00000000009C3000-memory.dmp

memory/2556-11-0x0000000001860000-0x0000000001864000-memory.dmp

memory/2556-12-0x0000000000800000-0x00000000009C3000-memory.dmp