orcus | 3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250

General

Target

3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe
Size

839KB
MD5

6c2c7289dcf4dcf70d81c993d72f26c4
SHA1

7687da2f87042f6f8ef5c79d8ed9beca1fe478e7
SHA256

3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250
SHA512

61195ac5e3da8f5ab807ae0ba698e96f65b8e879afa83b5b67786516d008f34505ff4fc8a3704103f61a287a597943fedab03b836463db222155a3348fdc63f6
SSDEEP

24576:TpS04YNEMuExDiU6E5R9s8xY/2l/dmtnIbt+rP:TL4auS+UjfU2TmdIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

2.tcp.eu.ngrok.io

Mutex

05216c89fea5473198f9b92208d3b339

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
01/03/2025 21:46:16
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 1 IoCs

pid	Process
2804	AudioDriver.exe

Loads dropped DLL 1 IoCs

pid	Process
2532	3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
2	2.tcp.eu.ngrok.io
8	2.tcp.eu.ngrok.io
15	2.tcp.eu.ngrok.io

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	3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe
2804	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2804	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2804	AudioDriver.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2804	2532	3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe	30
PID 2532 wrote to memory of 2804	2532	3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe	30
PID 2532 wrote to memory of 2804	2532	3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe	30
PID 2532 wrote to memory of 2804	2532	3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe	30

C:\Users\Admin\AppData\Local\Temp\3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe
"C:\Users\Admin\AppData\Local\Temp\3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532
- 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
  PID:2804

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
839KB

MD5
6c2c7289dcf4dcf70d81c993d72f26c4

SHA1
7687da2f87042f6f8ef5c79d8ed9beca1fe478e7

SHA256
3e29e55b700385d78279334c5831aa5553e007df0c3b1b78a20543b80714d250

SHA512
61195ac5e3da8f5ab807ae0ba698e96f65b8e879afa83b5b67786516d008f34505ff4fc8a3704103f61a287a597943fedab03b836463db222155a3348fdc63f6

Download Submit
memory/2532-0-0x0000000074331000-0x0000000074332000-memory.dmp

Filesize
4KB

Download
memory/2532-1-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2532-2-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2532-10-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2804-12-0x0000000073D81000-0x0000000073D82000-memory.dmp

Filesize
4KB

Download
memory/2804-13-0x0000000073D80000-0x000000007432B000-memory.dmp

Filesize
5.7MB

Download
memory/2804-14-0x0000000073D80000-0x000000007432B000-memory.dmp

Filesize
5.7MB

Download
memory/2804-15-0x0000000073D80000-0x000000007432B000-memory.dmp

Filesize
5.7MB

Download
memory/2804-16-0x0000000073D80000-0x000000007432B000-memory.dmp

Filesize
5.7MB

Download
memory/2804-17-0x0000000073D80000-0x000000007432B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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