orcus | 50c34fc34fcff8fc7de270a93320c8c1c96167155aff7529a604a81d0f080223

General

Target

idk.exe
Size

840KB
MD5

51e0dac05c7e96486c7c4ca4ad98a665
SHA1

10c736c618e3a17bc792ac24020edefbca83d2b5
SHA256

50c34fc34fcff8fc7de270a93320c8c1c96167155aff7529a604a81d0f080223
SHA512

9fac8de9c5c3131ce117e1f3ab3bb5d911f187157a171cc67d3d3793593bedd06ca52ad4ea925fc4b03e2a0b8aa79d137861e2ad4cb677423449f047c2e72293
SSDEEP

24576:BSJS04YNEMuExDiU6E5R9s8xY/2l/dy5Ibt+rK:BSr4auS+UjfU2TsIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

9across-entitled.gl.at.ply.gg

Mutex

dc65af64d3574495a19a8238941d412e

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
01/12/2025 13:25:03
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

Executes dropped EXE 1 IoCs

pid	Process
4780	AudioDriver.exe

Loads dropped DLL 1 IoCs

pid	Process
4780	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 4 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	idk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4548	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe
4780	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4780	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4780	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4780	AudioDriver.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 4780	4736	idk.exe	77
PID 4736 wrote to memory of 4780	4736	idk.exe	77
PID 4736 wrote to memory of 4780	4736	idk.exe	77
PID 4780 wrote to memory of 3348	4780	AudioDriver.exe	79
PID 4780 wrote to memory of 3348	4780	AudioDriver.exe	79
PID 4780 wrote to memory of 3348	4780	AudioDriver.exe	79
PID 3348 wrote to memory of 4548	3348	cmd.exe	81
PID 3348 wrote to memory of 4548	3348	cmd.exe	81
PID 3348 wrote to memory of 4548	3348	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\idk.exe
"C:\Users\Admin\AppData\Local\Temp\idk.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4780
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3348
  - - C:\Windows\SysWOW64\ipconfig.exe
      ipconfig
      4⤵
      System Location Discovery: System Language Discovery
      Gathers network information
      PID:4548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Local\Temp\opus.dll

Filesize
332KB

MD5
1fc04b8bb4896745163df806695ee193

SHA1
39174ce2fca9a3e86bb7a5686037bc42f2572de1

SHA256
3f2b2fd440fdd84288dadfc63e37a4bc7ea0aae26889ab0d4a5ef6148f44ce14

SHA512
3ff18bdd364f27e54ffbf2d1af53e3500ec57e7e8fa14185f7fb1ef6639d69ac6253543b9e2155ade45ca5bcd567e94334f1ee7ad0a7ff28194168dc49883261

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

Filesize
840KB

MD5
51e0dac05c7e96486c7c4ca4ad98a665

SHA1
10c736c618e3a17bc792ac24020edefbca83d2b5

SHA256
50c34fc34fcff8fc7de270a93320c8c1c96167155aff7529a604a81d0f080223

SHA512
9fac8de9c5c3131ce117e1f3ab3bb5d911f187157a171cc67d3d3793593bedd06ca52ad4ea925fc4b03e2a0b8aa79d137861e2ad4cb677423449f047c2e72293

Download Submit
memory/4736-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/4736-1-0x0000000000380000-0x0000000000458000-memory.dmp

Filesize
864KB

Download
memory/4736-2-0x0000000004E70000-0x0000000004E7A000-memory.dmp

Filesize
40KB

Download
memory/4736-3-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/4736-4-0x00000000056A0000-0x0000000005C46000-memory.dmp

Filesize
5.6MB

Download
memory/4736-5-0x0000000005390000-0x0000000005422000-memory.dmp

Filesize
584KB

Download
memory/4736-6-0x00000000052F0000-0x000000000533C000-memory.dmp

Filesize
304KB

Download
memory/4736-9-0x0000000005430000-0x000000000547E000-memory.dmp

Filesize
312KB

Download
memory/4736-22-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/4780-24-0x0000000006690000-0x0000000006852000-memory.dmp

Filesize
1.8MB

Download
memory/4780-32-0x0000000007CD0000-0x00000000082E8000-memory.dmp

Filesize
6.1MB

Download
memory/4780-25-0x0000000005EA0000-0x0000000005EB0000-memory.dmp

Filesize
64KB

Download
memory/4780-26-0x0000000006BC0000-0x0000000006BCA000-memory.dmp

Filesize
40KB

Download
memory/4780-27-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/4780-30-0x0000000006640000-0x000000000664C000-memory.dmp

Filesize
48KB

Download
memory/4780-31-0x00000000071E0000-0x0000000007246000-memory.dmp

Filesize
408KB

Download
memory/4780-23-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/4780-33-0x0000000007250000-0x0000000007262000-memory.dmp

Filesize
72KB

Download
memory/4780-34-0x00000000076F0000-0x000000000772C000-memory.dmp

Filesize
240KB

Download
memory/4780-35-0x0000000007730000-0x000000000777C000-memory.dmp

Filesize
304KB

Download
memory/4780-36-0x00000000078C0000-0x00000000079CA000-memory.dmp

Filesize
1.0MB

Download
memory/4780-37-0x0000000008820000-0x0000000008D4C000-memory.dmp

Filesize
5.2MB

Download
memory/4780-40-0x0000000005E10000-0x0000000005E6E000-memory.dmp

Filesize
376KB

Download
memory/4780-21-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/4780-46-0x0000000008430000-0x00000000084B4000-memory.dmp

Filesize
528KB

Download

Analysis

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