orcus | 4e1729bc6da9b09dd3914f71694f75c06074bf6dc64b985a0099760dc00fcd33

General

Target

fffffffffff.exe
Size

840KB
MD5

bf3709975587af1ae764262fd2ce2f48
SHA1

de63b6c5b11653e8d777f8cbbf6018972413d44a
SHA256

4e1729bc6da9b09dd3914f71694f75c06074bf6dc64b985a0099760dc00fcd33
SHA512

19d3ed22232c5f907b951935ff465bea24317421c47934032cb010f250eb8bdebfd6907a26b844716c4da1599d37c54e8275ce67f13810c9b064c962b84e4d94
SSDEEP

24576:dA8S04YNEMuExDiU6E5R9s8xY/2l/dV5Ibt+rk:dA04auS+UjfU2TbIbt+r

Score

10^/10

orcus drhdrhdrhdrh discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

drhdrhdrhdrh

C2

127.0.0.1

m5email-hitting.gl.at.ply.gg

Mutex

e3db35b9530943cab373c52757f1acfa

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
12/11/2024 19:30:42
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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	fffffffffff.exe

Executes dropped EXE 2 IoCs

pid	Process
960	WindowsInput.exe
1128	AudioDriver.exe

Drops file in System32 directory 3 IoCs

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

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe
1128	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1128	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1128	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1128	AudioDriver.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 960	4024	fffffffffff.exe	83
PID 4024 wrote to memory of 960	4024	fffffffffff.exe	83
PID 4024 wrote to memory of 1128	4024	fffffffffff.exe	84
PID 4024 wrote to memory of 1128	4024	fffffffffff.exe	84
PID 4024 wrote to memory of 1128	4024	fffffffffff.exe	84

C:\Users\Admin\AppData\Local\Temp\fffffffffff.exe
"C:\Users\Admin\AppData\Local\Temp\fffffffffff.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:960
- 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:1128

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

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Downloads

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

Filesize
840KB

MD5
bf3709975587af1ae764262fd2ce2f48

SHA1
de63b6c5b11653e8d777f8cbbf6018972413d44a

SHA256
4e1729bc6da9b09dd3914f71694f75c06074bf6dc64b985a0099760dc00fcd33

SHA512
19d3ed22232c5f907b951935ff465bea24317421c47934032cb010f250eb8bdebfd6907a26b844716c4da1599d37c54e8275ce67f13810c9b064c962b84e4d94

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/960-24-0x00007FFB81060000-0x00007FFB81A01000-memory.dmp

Filesize
9.6MB

Download
memory/960-35-0x000000001C1E0000-0x000000001C6AE000-memory.dmp

Filesize
4.8MB

Download
memory/960-53-0x00007FFB81060000-0x00007FFB81A01000-memory.dmp

Filesize
9.6MB

Download
memory/960-36-0x000000001C750000-0x000000001C7EC000-memory.dmp

Filesize
624KB

Download
memory/960-27-0x000000001B880000-0x000000001B8A4000-memory.dmp

Filesize
144KB

Download
memory/960-23-0x00007FFB81060000-0x00007FFB81A01000-memory.dmp

Filesize
9.6MB

Download
memory/960-22-0x000000001B560000-0x000000001B580000-memory.dmp

Filesize
128KB

Download
memory/960-20-0x00007FFB81315000-0x00007FFB81316000-memory.dmp

Filesize
4KB

Download
memory/960-21-0x0000000001140000-0x0000000001158000-memory.dmp

Filesize
96KB

Download
memory/1128-69-0x000000007526E000-0x000000007526F000-memory.dmp

Filesize
4KB

Download
memory/1128-74-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/1128-73-0x00000000062F0000-0x00000000062FA000-memory.dmp

Filesize
40KB

Download
memory/1128-72-0x0000000005AF0000-0x0000000005B00000-memory.dmp

Filesize
64KB

Download
memory/1128-71-0x0000000006320000-0x00000000064E2000-memory.dmp

Filesize
1.8MB

Download
memory/1128-70-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/4024-4-0x0000000005580000-0x0000000005B24000-memory.dmp

Filesize
5.6MB

Download
memory/4024-5-0x0000000005370000-0x0000000005402000-memory.dmp

Filesize
584KB

Download
memory/4024-56-0x0000000006140000-0x000000000618E000-memory.dmp

Filesize
312KB

Download
memory/4024-1-0x0000000000520000-0x00000000005F8000-memory.dmp

Filesize
864KB

Download
memory/4024-3-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/4024-68-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/4024-6-0x00000000052D0000-0x000000000531C000-memory.dmp

Filesize
304KB

Download
memory/4024-2-0x0000000002910000-0x000000000291A000-memory.dmp

Filesize
40KB

Download
memory/4024-7-0x0000000005410000-0x0000000005432000-memory.dmp

Filesize
136KB

Download
memory/4024-0-0x000000007526E000-0x000000007526F000-memory.dmp

Filesize
4KB

Download
memory/4024-8-0x0000000005330000-0x000000000533C000-memory.dmp

Filesize
48KB

Download

Analysis

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