orcus | a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e

General

Target

a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe
Size

840KB
MD5

7c95cc297fcae39019ff52fdb7276ad8
SHA1

25b76402f62aec4449d81677e3135dc3bda11c2a
SHA256

a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
SHA512

3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e
SSDEEP

24576:ULFS04YNEMuExDiU6E5R9s8xY/2l/d6N1Ibt+rm:UL34auS+UjfU2T21Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

127.0.0.1

Mutex

8a5b128913914f118907e32de506aabb

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
01/25/2025 19:22:27
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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe

Executes dropped EXE 1 IoCs

pid	Process
3300	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	a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe
3300	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3300	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 3300	3100	a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe	83
PID 3100 wrote to memory of 3300	3100	a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe	83
PID 3100 wrote to memory of 3300	3100	a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe	83

C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe
"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3100
- 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
  PID:3300

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
840KB

MD5
7c95cc297fcae39019ff52fdb7276ad8

SHA1
25b76402f62aec4449d81677e3135dc3bda11c2a

SHA256
a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e

SHA512
3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e

Download Submit
memory/3100-4-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/3100-22-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3100-3-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3100-0-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/3100-5-0x0000000005690000-0x0000000005722000-memory.dmp

Filesize
584KB

Download
memory/3100-6-0x0000000005600000-0x000000000564C000-memory.dmp

Filesize
304KB

Download
memory/3100-2-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/3100-1-0x0000000000750000-0x0000000000828000-memory.dmp

Filesize
864KB

Download
memory/3100-9-0x0000000005740000-0x000000000578E000-memory.dmp

Filesize
312KB

Download
memory/3300-21-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3300-23-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3300-24-0x00000000064C0000-0x0000000006682000-memory.dmp

Filesize
1.8MB

Download
memory/3300-25-0x0000000005940000-0x0000000005950000-memory.dmp

Filesize
64KB

Download
memory/3300-26-0x0000000006810000-0x000000000681A000-memory.dmp

Filesize
40KB

Download
memory/3300-27-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download

Analysis

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