orcus | b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c

General

Target

b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe
Size

840KB
MD5

b2648c3b0be804c000a64bddd0c4270e
SHA1

4f40acb4c874299c8c9159750f2b707aa6cc40e8
SHA256

b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c
SHA512

3b4f7f801645e367e2b27251c79950cee60a410ddb7affd5f3519dfa53f57996246b16368dcb487e8ce8bf35362cc9a92699116f38e75da4c5bfbeb0662f2c9b
SSDEEP

24576:CSJS04YNEMuExDiU6E5R9s8xY/2l/d1N1Ibt+rE:CSr4auS+UjfU2TD1Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

10.128.0.3

35.202.161.174

Mutex

c87f7288ba424c08aa6fa097a1e6cfb6

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
01/19/2025 19:47:18
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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	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	b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe
2848	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 2848	4824	b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe	86
PID 4824 wrote to memory of 2848	4824	b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe	86
PID 4824 wrote to memory of 2848	4824	b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe	86

C:\Users\Admin\AppData\Local\Temp\b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe
"C:\Users\Admin\AppData\Local\Temp\b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4824
- 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:2848

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
b2648c3b0be804c000a64bddd0c4270e

SHA1
4f40acb4c874299c8c9159750f2b707aa6cc40e8

SHA256
b0df124ba2d378320fc76b7a94d7846ea6f74491b435bc6b5bf8cf0b7589731c

SHA512
3b4f7f801645e367e2b27251c79950cee60a410ddb7affd5f3519dfa53f57996246b16368dcb487e8ce8bf35362cc9a92699116f38e75da4c5bfbeb0662f2c9b

Download Submit
memory/2848-28-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/2848-26-0x0000000006570000-0x000000000657A000-memory.dmp

Filesize
40KB

Download
memory/2848-25-0x0000000006520000-0x0000000006530000-memory.dmp

Filesize
64KB

Download
memory/2848-24-0x00000000065A0000-0x0000000006762000-memory.dmp

Filesize
1.8MB

Download
memory/2848-23-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/2848-22-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/4824-4-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/4824-10-0x0000000005FD0000-0x000000000601E000-memory.dmp

Filesize
312KB

Download
memory/4824-7-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/4824-6-0x0000000005480000-0x00000000054CC000-memory.dmp

Filesize
304KB

Download
memory/4824-5-0x0000000005510000-0x00000000055A2000-memory.dmp

Filesize
584KB

Download
memory/4824-0-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

Filesize
4KB

Download
memory/4824-3-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/4824-2-0x00000000011A0000-0x00000000011AA000-memory.dmp

Filesize
40KB

Download
memory/4824-27-0x0000000074DA0000-0x0000000075550000-memory.dmp

Filesize
7.7MB

Download
memory/4824-1-0x00000000005D0000-0x00000000006A8000-memory.dmp

Filesize
864KB

Download

Analysis

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