orcus | ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b

General

Target

ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe
Size

855KB
MD5

0c9b9d93b1938108ffe6d2860ae9a32d
SHA1

06891084a5e117b5f8953b336a10cfb149aa9b89
SHA256

ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b
SHA512

f66c7245b411e904d75094e37b488299de992a967b2ba67023bda22b9f34fe4dadbd11b4f344aa55337f41d3565bb4629c5c78ed8b32474eb7764ba4289c5043
SSDEEP

24576:5LFS04YNEMuExDiU6E5R9s8xY/2l/dl5Ibt+rF:5L34auS+UjfU2TLIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

192.168.2.4

Mutex

a3607d62eed94a4d8d054d250287d86f

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
11/26/2024 08:35:25
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	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	ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe
2704	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2704	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2704	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 2704	3464	ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe	85
PID 3464 wrote to memory of 2704	3464	ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe	85
PID 3464 wrote to memory of 2704	3464	ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe	85

C:\Users\Admin\AppData\Local\Temp\ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe
"C:\Users\Admin\AppData\Local\Temp\ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3464
- 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:2704

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
855KB

MD5
0c9b9d93b1938108ffe6d2860ae9a32d

SHA1
06891084a5e117b5f8953b336a10cfb149aa9b89

SHA256
ed84165ca307b37979dbf6ea4872b9b4b581beb789fa26fa46d807b348a9a66b

SHA512
f66c7245b411e904d75094e37b488299de992a967b2ba67023bda22b9f34fe4dadbd11b4f344aa55337f41d3565bb4629c5c78ed8b32474eb7764ba4289c5043

Download Submit
memory/2704-24-0x0000000005CD0000-0x0000000005E92000-memory.dmp

Filesize
1.8MB

Download
memory/2704-23-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/2704-27-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/2704-26-0x0000000006200000-0x000000000620A000-memory.dmp

Filesize
40KB

Download
memory/2704-25-0x0000000005510000-0x0000000005520000-memory.dmp

Filesize
64KB

Download
memory/2704-22-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-2-0x00000000024F0000-0x00000000024FA000-memory.dmp

Filesize
40KB

Download
memory/3464-6-0x0000000004FF0000-0x000000000503C000-memory.dmp

Filesize
304KB

Download
memory/3464-9-0x0000000005130000-0x000000000517E000-memory.dmp

Filesize
312KB

Download
memory/3464-21-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/3464-1-0x0000000000130000-0x000000000020C000-memory.dmp

Filesize
880KB

Download
memory/3464-0-0x000000007492E000-0x000000007492F000-memory.dmp

Filesize
4KB

Download
memory/3464-5-0x0000000005090000-0x0000000005122000-memory.dmp

Filesize
584KB

Download
memory/3464-4-0x00000000053A0000-0x0000000005944000-memory.dmp

Filesize
5.6MB

Download
memory/3464-3-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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