orcus | 88494e952cf5f51d898c2c19b0926b08a2ec98a20a6876fa687c5f05800fad32

General

Target

yeah.exe
Size

1.2MB
MD5

f6457e923b3daa5ba6036b78c0b18169
SHA1

fe4b8223233fe3ea9f33629c29326daba3cd0d97
SHA256

88494e952cf5f51d898c2c19b0926b08a2ec98a20a6876fa687c5f05800fad32
SHA512

26222eabbe3b2d157af1e7cad955f089ad52219524abdf2439c2f230696053d2a6925b0f607d41aaaf9c47362ffc30b16ddd331f18ba68ae1804732cafa09388
SSDEEP

24576:a5WHS04YNEMuExDiU6E5R9s8xY/2l/dRJ5dtsPxNGfyXIbt+rj:a5Wd4auS+UjfU2T/5XD8Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

147.185.221.21

Mutex

75534897aa9340228be565c86ed29b52

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
09/22/2024 20:17:41
plugins
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
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
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

Processes:

yeah.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation yeah.exe
Executes dropped EXE 1 IoCs

Processes:

AudioDriver.exe

pid process

1780 AudioDriver.exe
Loads dropped DLL 1 IoCs

Processes:

AudioDriver.exe

pid process

1780 AudioDriver.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	yeah.exe

pid	process
1780	AudioDriver.exe

pid	process
1780	AudioDriver.exe

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

Processes:

yeah.exeAudioDriver.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yeah.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

AudioDriver.exe

pid process

1780 AudioDriver.exe
1780 AudioDriver.exe
1780 AudioDriver.exe
1780 AudioDriver.exe
1780 AudioDriver.exe
1780 AudioDriver.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AudioDriver.exe

description pid process

Token: SeDebugPrivilege 1780 AudioDriver.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AudioDriver.exe

pid process

1780 AudioDriver.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

AudioDriver.exe

pid process

1780 AudioDriver.exe

pid	process
1780	AudioDriver.exe
1780	AudioDriver.exe
1780	AudioDriver.exe
1780	AudioDriver.exe
1780	AudioDriver.exe
1780	AudioDriver.exe

description	pid	process
Token: SeDebugPrivilege	1780	AudioDriver.exe

pid	process
1780	AudioDriver.exe

pid	process
1780	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

yeah.exe

description	pid	process	target process
PID 4916 wrote to memory of 1780	4916	yeah.exe	AudioDriver.exe
PID 4916 wrote to memory of 1780	4916	yeah.exe	AudioDriver.exe
PID 4916 wrote to memory of 1780	4916	yeah.exe	AudioDriver.exe

C:\Users\Admin\AppData\Local\Temp\yeah.exe
"C:\Users\Admin\AppData\Local\Temp\yeah.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4916
- 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
  PID:1780

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\GamerView\sqlite3.dll

Filesize
626KB

MD5
d8aec01ff14e3e7ad43a4b71e30482e4

SHA1
e3015f56f17d845ec7eef11d41bbbc28cc16d096

SHA256
da1d608be064555ab3d3d35e6db64527b8c44f3fa5ddd7c3ec723f80fc99736e

SHA512
f5b2f4bda0cc13e1d1c541fb0caea14081ee4daffd497e31a3d4d55d5f9d85a61158b4891a6527efe623b2f32b697ac912320d9be5c0303812ca98dcc8866fcf

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

Filesize
1.2MB

MD5
f6457e923b3daa5ba6036b78c0b18169

SHA1
fe4b8223233fe3ea9f33629c29326daba3cd0d97

SHA256
88494e952cf5f51d898c2c19b0926b08a2ec98a20a6876fa687c5f05800fad32

SHA512
26222eabbe3b2d157af1e7cad955f089ad52219524abdf2439c2f230696053d2a6925b0f607d41aaaf9c47362ffc30b16ddd331f18ba68ae1804732cafa09388

Download Submit
memory/1780-39-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1780-38-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1780-37-0x0000000006850000-0x000000000685A000-memory.dmp

Filesize
40KB

Download
memory/1780-28-0x0000000005DB0000-0x0000000005DC0000-memory.dmp

Filesize
64KB

Download
memory/1780-27-0x0000000005E30000-0x0000000005FF2000-memory.dmp

Filesize
1.8MB

Download
memory/1780-26-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1780-25-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4916-5-0x0000000005410000-0x00000000054A2000-memory.dmp

Filesize
584KB

Download
memory/4916-12-0x0000000005590000-0x00000000055DE000-memory.dmp

Filesize
312KB

Download
memory/4916-9-0x00000000054B0000-0x0000000005568000-memory.dmp

Filesize
736KB

Download
memory/4916-24-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4916-7-0x00000000053E0000-0x00000000053E8000-memory.dmp

Filesize
32KB

Download
memory/4916-8-0x0000000005400000-0x0000000005408000-memory.dmp

Filesize
32KB

Download
memory/4916-6-0x0000000005370000-0x00000000053BC000-memory.dmp

Filesize
304KB

Download
memory/4916-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/4916-4-0x00000000055E0000-0x0000000005B84000-memory.dmp

Filesize
5.6MB

Download
memory/4916-3-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4916-2-0x0000000002870000-0x000000000287A000-memory.dmp

Filesize
40KB

Download
memory/4916-1-0x0000000000590000-0x00000000006C4000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing