Malware Analysis Report

2025-01-22 15:05

Sample ID 240208-cejqmaca53
Target 2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8
SHA256 2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8
Tags
debug orcus
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8

Threat Level: Known bad

The file 2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8 was found to be: Known bad.

Malicious Activity Summary

debug orcus

Orcus family

Orcus main payload

Unsigned PE

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-08 01:59

Signatures

Orcus family

orcus

Orcus main payload

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

2024-02-08 01:59

Reported

2024-02-08 02:01

Platform

win7-20231215-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8.exe

"C:\Users\Admin\AppData\Local\Temp\2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8.exe"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe

dw20.exe -x -s 376

Network

N/A

Files

memory/2468-0-0x000007FEF60C0000-0x000007FEF6A5D000-memory.dmp

memory/2468-1-0x0000000000B90000-0x0000000000C10000-memory.dmp

memory/2100-2-0x0000000000270000-0x0000000000271000-memory.dmp

memory/2468-3-0x000007FEF60C0000-0x000007FEF6A5D000-memory.dmp

memory/2468-4-0x0000000000B90000-0x0000000000C10000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-08 01:59

Reported

2024-02-08 02:01

Platform

win10v2004-20231215-en

Max time kernel

144s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8.exe"

Signatures

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8.exe

"C:\Users\Admin\AppData\Local\Temp\2659a5c2ff8e9358203fd04f53a5447b35f3c1e3419a347b5bf4c9fa775b45e8.exe"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe

dw20.exe -x -s 744

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 136.71.105.51.in-addr.arpa udp

Files

memory/1292-0-0x00007FFF1BA40000-0x00007FFF1C3E1000-memory.dmp

memory/1292-1-0x0000000000E00000-0x0000000000E10000-memory.dmp

memory/1292-6-0x00007FFF1BA40000-0x00007FFF1C3E1000-memory.dmp

memory/1292-9-0x00007FFF1BA40000-0x00007FFF1C3E1000-memory.dmp