orcus | 4dcd2bbd27553f12a357e2421182ad84576bf3bd1c0fd998bcc80c4174079d19

General

Target

sigmaboysigmarizzskibidiohio.exe
Size

839KB
MD5

afb7726fc7e69ace3e6a72ae667db17f
SHA1

c78948d3eb5fbba2c7a95fa1d00b811caa2cc7f7
SHA256

4dcd2bbd27553f12a357e2421182ad84576bf3bd1c0fd998bcc80c4174079d19
SHA512

34a5a439a11e361e907bcf5b72de338bd8d15775ba29b4b2538240e41cbe4325cedcb3200f248bb3bdba91c63ca8be00f91c5c400bb2fdb45cbe13fa39ded400
SSDEEP

24576:JpS04YNEMuExDiU6E5R9s8xY/2l/dmtnIbt+ra:JL4auS+UjfU2TmdIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

147.185.221.24

Mutex

0fc841e516254c64b62a30b4c458bc3f

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
12/27/2024 12:41:55
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 2 IoCs

pid	Process
1920	AudioDriver.exe
1092	sigmaboysigmarizzskibidiohio 1.exe

Loads dropped DLL 2 IoCs

pid	Process
2072	sigmaboysigmarizzskibidiohio.exe
1920	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 3 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	sigmaboysigmarizzskibidiohio.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sigmaboysigmarizzskibidiohio 1.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1920	AudioDriver.exe
1920	AudioDriver.exe
1920	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1920	AudioDriver.exe
Token: 33	2572	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2572	AUDIODG.EXE
Token: 33	2572	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2572	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1920	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1920	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1920	AudioDriver.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1920	2072	sigmaboysigmarizzskibidiohio.exe	30
PID 2072 wrote to memory of 1920	2072	sigmaboysigmarizzskibidiohio.exe	30
PID 2072 wrote to memory of 1920	2072	sigmaboysigmarizzskibidiohio.exe	30
PID 2072 wrote to memory of 1920	2072	sigmaboysigmarizzskibidiohio.exe	30
PID 1920 wrote to memory of 1092	1920	AudioDriver.exe	33
PID 1920 wrote to memory of 1092	1920	AudioDriver.exe	33
PID 1920 wrote to memory of 1092	1920	AudioDriver.exe	33
PID 1920 wrote to memory of 1092	1920	AudioDriver.exe	33

C:\Users\Admin\AppData\Local\Temp\sigmaboysigmarizzskibidiohio.exe
"C:\Users\Admin\AppData\Local\Temp\sigmaboysigmarizzskibidiohio.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- 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 SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Users\Admin\AppData\Local\Temp\sigmaboysigmarizzskibidiohio 1.exe
    "C:\Users\Admin\AppData\Local\Temp\sigmaboysigmarizzskibidiohio 1.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1092

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x43c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\CabB2CD.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
839KB

MD5
afb7726fc7e69ace3e6a72ae667db17f

SHA1
c78948d3eb5fbba2c7a95fa1d00b811caa2cc7f7

SHA256
4dcd2bbd27553f12a357e2421182ad84576bf3bd1c0fd998bcc80c4174079d19

SHA512
34a5a439a11e361e907bcf5b72de338bd8d15775ba29b4b2538240e41cbe4325cedcb3200f248bb3bdba91c63ca8be00f91c5c400bb2fdb45cbe13fa39ded400

Download Submit
memory/1920-13-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1920-12-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1920-14-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1920-31-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/1920-32-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-0-0x0000000074991000-0x0000000074992000-memory.dmp

Filesize
4KB

Download
memory/2072-1-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-2-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-11-0x0000000074990000-0x0000000074F3B000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

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