orcus | 5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176

General

Target

5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe
Size

840KB
MD5

2f37dabb7b772b9594d52465d65ca59a
SHA1

62958d73036b7017b71e98018e5ad827601cca30
SHA256

5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176
SHA512

9d5e3f804e024466d66944fd9b155ff53fbf877bd36c775746d7c6150ebc44800c3bd31f8f853cc5ce71e4e954bc097f156927ca207b0a546cd366a7ce0cc9fb
SSDEEP

24576:ZLFS04YNEMuExDiU6E5R9s8xY/2l/d6N1Ibt+rp:ZL34auS+UjfU2T21Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

127.0.0.1

Mutex

7949afefb29c4c1e866185349ec94bd4

Attributes

administration_rights_required
false
anti_debugger
false
anti_tcp_analyzer
false
antivm
false
autostart_method
1
change_creation_date
false
force_installer_administrator_privileges
false
hide_file
false
install
false
installation_folder
%appdata%\Microsoft\Speech\AudioDriver.exe
installservice
false
keylogger_enabled
false
newcreationdate
02/17/2025 13:20:09
plugins
AgEAAA==
reconnect_delay
10000
registry_autostart_keyname
Audio HD Driver
registry_hidden_autostart
false
set_admin_flag
false
tasksch_name
Audio HD Driver
tasksch_request_highest_privileges
false
try_other_autostart_onfail
false

aes.plain

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1874072718-2205492803-118941907-1000\Control Panel\International\Geo\Nation	5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe

Executes dropped EXE 1 IoCs

pid	Process
2428	AudioDriver.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe
2428	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2428	2020	5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe	81
PID 2020 wrote to memory of 2428	2020	5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe	81
PID 2020 wrote to memory of 2428	2020	5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe	81

C:\Users\Admin\AppData\Local\Temp\5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe
"C:\Users\Admin\AppData\Local\Temp\5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

Filesize
840KB

MD5
2f37dabb7b772b9594d52465d65ca59a

SHA1
62958d73036b7017b71e98018e5ad827601cca30

SHA256
5e1dff4b92c92964fe619f83784a38893c04d12a4f40243370cb296146d47176

SHA512
9d5e3f804e024466d66944fd9b155ff53fbf877bd36c775746d7c6150ebc44800c3bd31f8f853cc5ce71e4e954bc097f156927ca207b0a546cd366a7ce0cc9fb

Download Submit
memory/2020-4-0x0000000005370000-0x0000000005914000-memory.dmp

Filesize
5.6MB

Download
memory/2020-21-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/2020-3-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/2020-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/2020-5-0x0000000005160000-0x00000000051F2000-memory.dmp

Filesize
584KB

Download
memory/2020-6-0x00000000050C0000-0x000000000510C000-memory.dmp

Filesize
304KB

Download
memory/2020-2-0x0000000002620000-0x000000000262A000-memory.dmp

Filesize
40KB

Download
memory/2020-1-0x00000000001E0000-0x00000000002B8000-memory.dmp

Filesize
864KB

Download
memory/2020-9-0x0000000005200000-0x000000000524E000-memory.dmp

Filesize
312KB

Download
memory/2428-22-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/2428-23-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/2428-24-0x0000000006280000-0x0000000006442000-memory.dmp

Filesize
1.8MB

Download
memory/2428-25-0x0000000005AC0000-0x0000000005AD0000-memory.dmp

Filesize
64KB

Download
memory/2428-26-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

Filesize
40KB

Download
memory/2428-27-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download

Analysis

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