orcus | e678ff4a92b44050d4f7cac84306913c2a6972ab0a3d9f599ecdc3fbcc2d04ee

General

Target

resemble.exe
Size

845KB
MD5

5e36a1e6ce8f02b3665f095a581102be
SHA1

68b6f9c3a1d9261c63d601a623429373cbf2375c
SHA256

e678ff4a92b44050d4f7cac84306913c2a6972ab0a3d9f599ecdc3fbcc2d04ee
SHA512

3f828591125f7596a63b8e0d9497082f79e632cfb69f3a07964ae4510ff41e1dca68794d0679047b545cfe13d360493e07169ad622e4257d4b051a9b736c5fe1
SSDEEP

24576:LsS04YNEMuExDiU6E5R9s8xY/2l/dg6Ibt+rl:LE4auS+UjfU2Tg6Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

9across-entitled.gl.at.ply.gg

Mutex

1017271001cd4c87be9e00e85ec85129

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
01/12/2025 04:13:42
plugins
AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgNwA4ADEANABmAGIAZQA2AGEANQAzADgANAA2AGUAMABhADgAZQAwADcAZABjAGIANwAxAGMANwBjADIANAAwAAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDIANwBhAGQAZQA0ADQANABmADcAMwA4ADQANgA4ADgAYQA4ADcAYQAzADAAZQA0AGEAMgBlADIAOQA2AGIAMwABAAAEBA==
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-1-5-21-2366345620-3342093254-3461191856-1000\Control Panel\International\Geo\Nation	resemble.exe

Executes dropped EXE 1 IoCs

pid	Process
1924	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	resemble.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	resemble.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	resemble.exe
File opened for modification	C:\Windows\assembly	resemble.exe
File created	C:\Windows\assembly\Desktop.ini	resemble.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	resemble.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe
1924	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1924	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1924	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4868 wrote to memory of 1924	4868	resemble.exe	83
PID 4868 wrote to memory of 1924	4868	resemble.exe	83
PID 4868 wrote to memory of 1924	4868	resemble.exe	83

C:\Users\Admin\AppData\Local\Temp\resemble.exe
"C:\Users\Admin\AppData\Local\Temp\resemble.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4868
- 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:1924

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
845KB

MD5
5e36a1e6ce8f02b3665f095a581102be

SHA1
68b6f9c3a1d9261c63d601a623429373cbf2375c

SHA256
e678ff4a92b44050d4f7cac84306913c2a6972ab0a3d9f599ecdc3fbcc2d04ee

SHA512
3f828591125f7596a63b8e0d9497082f79e632cfb69f3a07964ae4510ff41e1dca68794d0679047b545cfe13d360493e07169ad622e4257d4b051a9b736c5fe1

Download Submit
memory/1924-8-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/1924-9-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/1924-10-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/1924-11-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/1924-12-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/1924-13-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/4868-0-0x00000000750C2000-0x00000000750C3000-memory.dmp

Filesize
4KB

Download
memory/4868-1-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/4868-2-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download
memory/4868-7-0x00000000750C0000-0x0000000075671000-memory.dmp

Filesize
5.7MB

Download

Analysis

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