orcus | c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab

General

Target

c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe
Size

1020KB
MD5

d84c3a8def7f49bfb7169aadbb7ace20
SHA1

06010698a0e6e9a3c9b09dd01e3a8a876957fd5f
SHA256

c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab
SHA512

257e97f70c97208e9b3850e49f0d2ca928779c08bccac3a88bc79f4d8d35e2e957b955f4162a8f9494a73513658ccb34a4f73a8ac026443a5fafb42c0fb5d2ef
SSDEEP

24576:T9KS04YNEMuExDiU6E5R9s8xY/2l/dO5Ibt+rU:T9G4auS+UjfU2TQIbt+r

Score

10^/10

orcus klient1 discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Klient1

C2

3band-improve.gl.at.ply.gg

Mutex

9e4a9ca4fa594dc2b9bfbd60839d39f3

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
10/12/2021 03:12:15
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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe

Executes dropped EXE 1 IoCs

pid	Process
1932	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	c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe
1932	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1932	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1932	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1932	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1932	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 1932	4212	c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe	86
PID 4212 wrote to memory of 1932	4212	c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe	86
PID 4212 wrote to memory of 1932	4212	c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe	86

C:\Users\Admin\AppData\Local\Temp\c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe
"C:\Users\Admin\AppData\Local\Temp\c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4212
- 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
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1932

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
1020KB

MD5
d84c3a8def7f49bfb7169aadbb7ace20

SHA1
06010698a0e6e9a3c9b09dd01e3a8a876957fd5f

SHA256
c3f138a7de487cf3d828d2589c7bb9a48bd186534d43b35b1b4bb783e9692dab

SHA512
257e97f70c97208e9b3850e49f0d2ca928779c08bccac3a88bc79f4d8d35e2e957b955f4162a8f9494a73513658ccb34a4f73a8ac026443a5fafb42c0fb5d2ef

Download Submit
memory/1932-24-0x00000000065B0000-0x0000000006772000-memory.dmp

Filesize
1.8MB

Download
memory/1932-23-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1932-27-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1932-26-0x0000000006BA0000-0x0000000006BAA000-memory.dmp

Filesize
40KB

Download
memory/1932-25-0x0000000005F90000-0x0000000005FA0000-memory.dmp

Filesize
64KB

Download
memory/1932-22-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4212-2-0x00000000015D0000-0x00000000015DA000-memory.dmp

Filesize
40KB

Download
memory/4212-6-0x0000000005900000-0x000000000594C000-memory.dmp

Filesize
304KB

Download
memory/4212-9-0x0000000005A40000-0x0000000005A8E000-memory.dmp

Filesize
312KB

Download
memory/4212-21-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4212-1-0x0000000000A10000-0x0000000000B14000-memory.dmp

Filesize
1.0MB

Download
memory/4212-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/4212-5-0x00000000059A0000-0x0000000005A32000-memory.dmp

Filesize
584KB

Download
memory/4212-4-0x0000000005AF0000-0x0000000006094000-memory.dmp

Filesize
5.6MB

Download
memory/4212-3-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download

Analysis

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