orcus | cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2

General

Target

cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe
Size

846KB
MD5

fb24bcb4a433dd86141c0cee0b899952
SHA1

21472a7ef07b7397ffe69b857b4466b5fbc8c17b
SHA256

cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2
SHA512

22e07afd77bff65dd30cffc99cd3b270989d70653d35c41c791f65ef4b382f684c15a0e0d0a41c258de383c1ab6df45dfcd20235ab3930e59ce236a8b1b1c775
SSDEEP

24576:6l9S04YNEMuExDiU6E5R9s8xY/2l/d2jIbt+rG:6lv4auS+UjfU2T6Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

192.168.1.105

Mutex

8b9c7f4cc341405cb9e57e28c405583c

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
10/22/2024 17:36:59
plugins
AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgMwAyADYAOAAxADQAYwBmADYANAA0ADEANAA5AGMANQA5AGIANgAzAGUAYgBiADUAYgBkAGYAMwBlADcAYgAzAAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDQAYQBiADQAMgBjADQAZQBkAGYANABmADQAYwAwADUAYQBkAGUAMwA0ADkAOQAwADUAOABlADkAZAA2ADMAYwABAAAEBA==
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe

Executes dropped EXE 1 IoCs

pid	Process
316	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	cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe
316	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
316	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
316	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 316	3208	cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe	88
PID 3208 wrote to memory of 316	3208	cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe	88
PID 3208 wrote to memory of 316	3208	cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe	88

C:\Users\Admin\AppData\Local\Temp\cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe
"C:\Users\Admin\AppData\Local\Temp\cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3208
- 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:316

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
846KB

MD5
fb24bcb4a433dd86141c0cee0b899952

SHA1
21472a7ef07b7397ffe69b857b4466b5fbc8c17b

SHA256
cd7dd87500f6775ffd5477ca83b6f2c22dd8ad50b33e678a50374b9e46cdbea2

SHA512
22e07afd77bff65dd30cffc99cd3b270989d70653d35c41c791f65ef4b382f684c15a0e0d0a41c258de383c1ab6df45dfcd20235ab3930e59ce236a8b1b1c775

Download Submit
memory/316-30-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/316-29-0x00000000068C0000-0x00000000068CA000-memory.dmp

Filesize
40KB

Download
memory/316-28-0x0000000006190000-0x00000000061A0000-memory.dmp

Filesize
64KB

Download
memory/316-27-0x0000000006210000-0x00000000063D2000-memory.dmp

Filesize
1.8MB

Download
memory/316-26-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/316-24-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3208-4-0x0000000006050000-0x00000000065F4000-memory.dmp

Filesize
5.6MB

Download
memory/3208-9-0x0000000006800000-0x0000000006808000-memory.dmp

Filesize
32KB

Download
memory/3208-8-0x0000000005E80000-0x0000000005E88000-memory.dmp

Filesize
32KB

Download
memory/3208-12-0x0000000006920000-0x000000000696E000-memory.dmp

Filesize
312KB

Download
memory/3208-7-0x0000000005E90000-0x0000000005EF6000-memory.dmp

Filesize
408KB

Download
memory/3208-6-0x0000000005CE0000-0x0000000005D2C000-memory.dmp

Filesize
304KB

Download
memory/3208-25-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3208-5-0x0000000005D80000-0x0000000005E12000-memory.dmp

Filesize
584KB

Download
memory/3208-0-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/3208-3-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/3208-2-0x0000000003260000-0x000000000326A000-memory.dmp

Filesize
40KB

Download
memory/3208-1-0x0000000000E00000-0x0000000000EDA000-memory.dmp

Filesize
872KB

Download

Analysis

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