orcus | d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8

General

Target

d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe
Size

11.8MB
MD5

a0cbe794292f30c1129bce6125291658
SHA1

b46b303c9d769bbeb23188c5def38632dd907e2b
SHA256

d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8
SHA512

7785992131a249085b143993c1eb2152d0085db4a4bc13109c8ded2d5490c268d50ed6d6490ec6235b8ff3bc176886ea0bbbf539879db151402d0d31f3be3f83
SSDEEP

24576:nl9S04YNEMuExDiU6E5R9s8xY/2l/dOBkIbt+rP:nlv4auS+UjfU2TWkIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

192.168.178.33

Mutex

97f13393114149c497deb58dae45a57f

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
01/30/2024 20:05:05
plugins
AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgMQAwAGEAMQA2ADUAYQA4AGUAYQA5ADEANAAxADYAZABhADgAZQAzADIANQAwADQANwA5AGYANwBjAGYANgA3AAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIGUANQA0ADYAZgA0ADMAYwA5ADcAOQBjADQAZgA1ADUAYgA1ADEAMQAyAGIANQA3ADEAMAA1ADAAZAAzADIANAABAAAEBA==
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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe

Executes dropped EXE 1 IoCs

pid	Process
3524	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	d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe
3524	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3524	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3524	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 3524	3412	d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe	83
PID 3412 wrote to memory of 3524	3412	d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe	83
PID 3412 wrote to memory of 3524	3412	d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe	83

C:\Users\Admin\AppData\Local\Temp\d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe
"C:\Users\Admin\AppData\Local\Temp\d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3412
- 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 SetWindowsHookEx
  PID:3524

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
11.8MB

MD5
a0cbe794292f30c1129bce6125291658

SHA1
b46b303c9d769bbeb23188c5def38632dd907e2b

SHA256
d61e6e93922d0932eefce57854dbe58ea6f82750c5490c7ab2ca2d265b5a7aa8

SHA512
7785992131a249085b143993c1eb2152d0085db4a4bc13109c8ded2d5490c268d50ed6d6490ec6235b8ff3bc176886ea0bbbf539879db151402d0d31f3be3f83

Download Submit
memory/3412-9-0x0000000005E50000-0x0000000005E58000-memory.dmp

Filesize
32KB

Download
memory/3412-3-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3412-13-0x0000000005E70000-0x0000000005EBE000-memory.dmp

Filesize
312KB

Download
memory/3412-1-0x0000000000590000-0x000000000066A000-memory.dmp

Filesize
872KB

Download
memory/3412-5-0x00000000054D0000-0x0000000005562000-memory.dmp

Filesize
584KB

Download
memory/3412-6-0x0000000005440000-0x000000000548C000-memory.dmp

Filesize
304KB

Download
memory/3412-7-0x00000000055E0000-0x0000000005646000-memory.dmp

Filesize
408KB

Download
memory/3412-0-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/3412-8-0x00000000055D0000-0x00000000055D8000-memory.dmp

Filesize
32KB

Download
memory/3412-2-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download
memory/3412-4-0x0000000005790000-0x0000000005D34000-memory.dmp

Filesize
5.6MB

Download
memory/3412-25-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-26-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-27-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3524-28-0x00000000060E0000-0x00000000062A2000-memory.dmp

Filesize
1.8MB

Download
memory/3524-29-0x0000000006070000-0x0000000006080000-memory.dmp

Filesize
64KB

Download
memory/3524-30-0x0000000006540000-0x000000000654A000-memory.dmp

Filesize
40KB

Download
memory/3524-31-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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