Malware Analysis Report

2025-03-15 06:42

Sample ID 250128-bepffa1qb1
Target ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7
SHA256 ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7
Tags
rat orcus discovery spyware stealer
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

ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7

Threat Level: Known bad

The file ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7 was found to be: Known bad.

Malicious Activity Summary

rat orcus discovery spyware stealer

Orcus family

Orcus

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-28 01:03

Signatures

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-28 01:03

Reported

2025-01-28 01:06

Platform

win7-20241010-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe

"C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe"

Network

Country Destination Domain Proto
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp

Files

memory/2240-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

memory/2240-1-0x0000000000E10000-0x0000000000F44000-memory.dmp

memory/2240-3-0x0000000074D40000-0x000000007542E000-memory.dmp

memory/2240-2-0x00000000004C0000-0x00000000004CA000-memory.dmp

memory/2240-4-0x0000000004480000-0x00000000044CC000-memory.dmp

memory/2240-5-0x00000000005B0000-0x00000000005B8000-memory.dmp

memory/2240-8-0x0000000004E20000-0x0000000004E6E000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe

MD5 366809485bc0958ac26655a8158283a0
SHA1 e342bcae97887ae54af1a452bee924cf3ae0dbdc
SHA256 ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7
SHA512 c7e026768dc555ea15f86334e1ad3f00f314d223e49e291144ea262380856d31b2b57f696d185c5fe69c5c229dcaf4a001b13b81d1929415f50b001c79e03e15

memory/2328-15-0x0000000000040000-0x0000000000174000-memory.dmp

memory/2240-17-0x0000000074D40000-0x000000007542E000-memory.dmp

memory/2328-18-0x0000000074D40000-0x000000007542E000-memory.dmp

memory/2328-16-0x0000000074D40000-0x000000007542E000-memory.dmp

memory/2328-19-0x0000000000860000-0x0000000000870000-memory.dmp

memory/2328-20-0x0000000074D40000-0x000000007542E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-28 01:03

Reported

2025-01-28 01:06

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe

"C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
N/A 192.168.68.146:10131 tcp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 7.98.51.23.in-addr.arpa udp
N/A 192.168.68.146:10131 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
N/A 192.168.68.146:10131 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
US 8.8.8.8:53 21.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp
N/A 192.168.68.146:10131 tcp

Files

memory/4572-0-0x000000007478E000-0x000000007478F000-memory.dmp

memory/4572-1-0x00000000005E0000-0x0000000000714000-memory.dmp

memory/4572-2-0x0000000002B10000-0x0000000002B1A000-memory.dmp

memory/4572-3-0x0000000074780000-0x0000000074F30000-memory.dmp

memory/4572-4-0x00000000057B0000-0x0000000005D54000-memory.dmp

memory/4572-6-0x0000000005500000-0x000000000554C000-memory.dmp

memory/4572-5-0x00000000055A0000-0x0000000005632000-memory.dmp

memory/4572-7-0x00000000056B0000-0x0000000005716000-memory.dmp

memory/4572-8-0x0000000005770000-0x0000000005778000-memory.dmp

memory/4572-11-0x0000000006060000-0x00000000060AE000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe

MD5 366809485bc0958ac26655a8158283a0
SHA1 e342bcae97887ae54af1a452bee924cf3ae0dbdc
SHA256 ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7
SHA512 c7e026768dc555ea15f86334e1ad3f00f314d223e49e291144ea262380856d31b2b57f696d185c5fe69c5c229dcaf4a001b13b81d1929415f50b001c79e03e15

memory/2624-22-0x0000000074780000-0x0000000074F30000-memory.dmp

memory/4572-24-0x0000000074780000-0x0000000074F30000-memory.dmp

memory/2624-25-0x0000000074780000-0x0000000074F30000-memory.dmp

memory/2624-26-0x00000000066E0000-0x00000000068A2000-memory.dmp

memory/2624-27-0x0000000006660000-0x0000000006670000-memory.dmp

memory/2624-28-0x0000000006BC0000-0x0000000006BCA000-memory.dmp

memory/2624-29-0x0000000074780000-0x0000000074F30000-memory.dmp