orcus | ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043

General

Target

ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe
Size

846KB
MD5

120270430b87201f1f3820a93bc504d8
SHA1

dd54fb83743a6b22bfc34260075a7cb0d37ee513
SHA256

ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043
SHA512

8c42e7a0d60ae87237886e5a1482dde331143c3fb2bc498006c2bd35279770f1e2ab0589e173ff964784797e58d8cbbcd88f1c14eb8cb3bdf734b50afec25dc9
SSDEEP

24576:mCRS04YNEMuExDiU6E5R9s8xY/2l/dOBaIbt+rj:mCT4auS+UjfU2TWaIbt+r

Score

10^/10

orcus skid discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Skid

C2

51.81.73.9

Mutex

4be9dadb55374df0a402a39a2fb0ad2e

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
01/29/2025 01:40:30
plugins
AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgNwBlADAAOQAxADQAOAA0ADMAMAA4ADAANAA2ADEAOQA4ADMAOQA0ADMAMQBjADYAYwAxADMAMABmAGQAZQBlAAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDYAZQBkAGIAMAAzADUAOQAyADMAOAAzADQAZAAwAGEAYgBlAGUAZABlADIANQAyADgAZAAwADkAZAA4AGEAYwABAAAEBA==
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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe

Executes dropped EXE 2 IoCs

pid	Process
4880	WindowsInput.exe
2644	AudioDriver.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\WindowsInput.InstallLog	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.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	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe
2644	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2644	AudioDriver.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 4880	1524	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe	84
PID 1524 wrote to memory of 4880	1524	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe	84
PID 1524 wrote to memory of 2644	1524	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe	85
PID 1524 wrote to memory of 2644	1524	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe	85
PID 1524 wrote to memory of 2644	1524	ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe	85

C:\Users\Admin\AppData\Local\Temp\ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe
"C:\Users\Admin\AppData\Local\Temp\ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:4880
- 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:2644

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

Loading Replay Monitor...

Downloads

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

Filesize
846KB

MD5
120270430b87201f1f3820a93bc504d8

SHA1
dd54fb83743a6b22bfc34260075a7cb0d37ee513

SHA256
ac96553bebcca327820b7e4b8cf980ccdecef681d93e001f2ddebd4c7d8ea043

SHA512
8c42e7a0d60ae87237886e5a1482dde331143c3fb2bc498006c2bd35279770f1e2ab0589e173ff964784797e58d8cbbcd88f1c14eb8cb3bdf734b50afec25dc9

Download Submit
C:\Windows\SysWOW64\WindowsInput.InstallLog

Filesize
224B

MD5
e469dda91ae810a1f94c96060f3f8a65

SHA1
0b4b3b0f6f937016b1e045ce5313ee2a65a38630

SHA256
d42fee8db8eb0e047ca53ad59b1c9bc69fe04993be36fec502e3532371908842

SHA512
2eb4037361c03e195c642a53f55a3182a6df19903db503060e366f2394750e64ae04fdaace61ef5a6dba649defc88322d78edd2928bc53ebd1ce11d68cc88dac

Download Submit
C:\Windows\SysWOW64\WindowsInput.InstallLog

Filesize
597B

MD5
c2291863df7c2d3038ce3c22fa276506

SHA1
7b7d2bc07a6c35523807342c747c9b6a19f3184e

SHA256
14504199bede3f46129969dbd2b7680f2e5b7fcd73a3e427ce1bb6217a6d13da

SHA512
00bf40174a67e3e663d18a887c5b461a1e5ead0b27f0a139d87969158c58f4ca72cfa5a731dda239356192ca4cb5ac6ae2b0e37401d534e686cabacd3cbee8fa

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e854a4636afc652b320e12e50ba4080e

SHA1
8a4ac6ecc22ee5f3a8ec846d38b41ff18c641fdc

SHA256
94b9c78c6fa2bf61fba20a08ad4563f7dd2f5668c28eff227965ce0a2032d5d5

SHA512
30aabd5079b6ed0948eb70fd18e9166096e4ba5d1d47fc35b7270f931d19bbe6cd929b6010f70297bf5272dc5a79e2523721354d211c4080d68ad8d17e316118

Download Submit
memory/1524-7-0x0000000005C30000-0x0000000005C38000-memory.dmp

Filesize
32KB

Download
memory/1524-59-0x0000000006940000-0x000000000698E000-memory.dmp

Filesize
312KB

Download
memory/1524-6-0x0000000005BD0000-0x0000000005C1C000-memory.dmp

Filesize
304KB

Download
memory/1524-8-0x0000000005C50000-0x0000000005C58000-memory.dmp

Filesize
32KB

Download
memory/1524-0-0x0000000074E3E000-0x0000000074E3F000-memory.dmp

Filesize
4KB

Download
memory/1524-9-0x0000000005D40000-0x0000000005D62000-memory.dmp

Filesize
136KB

Download
memory/1524-10-0x0000000005D10000-0x0000000005D1C000-memory.dmp

Filesize
48KB

Download
memory/1524-4-0x0000000005E80000-0x0000000006424000-memory.dmp

Filesize
5.6MB

Download
memory/1524-71-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/1524-1-0x0000000000D10000-0x0000000000DEA000-memory.dmp

Filesize
872KB

Download
memory/1524-5-0x0000000005C70000-0x0000000005D02000-memory.dmp

Filesize
584KB

Download
memory/1524-2-0x0000000003120000-0x000000000312A000-memory.dmp

Filesize
40KB

Download
memory/1524-3-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/2644-72-0x0000000074E3E000-0x0000000074E3F000-memory.dmp

Filesize
4KB

Download
memory/2644-77-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/2644-76-0x0000000005BD0000-0x0000000005BDA000-memory.dmp

Filesize
40KB

Download
memory/2644-75-0x0000000005460000-0x0000000005470000-memory.dmp

Filesize
64KB

Download
memory/2644-74-0x0000000005BF0000-0x0000000005DB2000-memory.dmp

Filesize
1.8MB

Download
memory/2644-73-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/4880-24-0x000000001BD00000-0x000000001BD20000-memory.dmp

Filesize
128KB

Download
memory/4880-23-0x000000001BCC0000-0x000000001BCD8000-memory.dmp

Filesize
96KB

Download
memory/4880-29-0x000000001C020000-0x000000001C044000-memory.dmp

Filesize
144KB

Download
memory/4880-22-0x00007FFC431A5000-0x00007FFC431A6000-memory.dmp

Filesize
4KB

Download
memory/4880-55-0x00007FFC42EF0000-0x00007FFC43891000-memory.dmp

Filesize
9.6MB

Download
memory/4880-25-0x00007FFC42EF0000-0x00007FFC43891000-memory.dmp

Filesize
9.6MB

Download
memory/4880-38-0x000000001CEF0000-0x000000001CF8C000-memory.dmp

Filesize
624KB

Download
memory/4880-37-0x000000001C980000-0x000000001CE4E000-memory.dmp

Filesize
4.8MB

Download
memory/4880-26-0x00007FFC42EF0000-0x00007FFC43891000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing