orcus | 87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749

General

Target

87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe
Size

840KB
MD5

cc0ca06bc879d94a1bc1451e9860f2b9
SHA1

1615869c3399c5427b9224624136de161befe936
SHA256

87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749
SHA512

ccba95edc93a19898c7883ef559de940cb34384601e0f00418cacd144e1f38dd74d3ddc7ff6cc822ccc26f0b95eb0e9a05064bbcc727b7e5c2edb12cd32bfac7
SSDEEP

24576:+LFS04YNEMuExDiU6E5R9s8xY/2l/d6N1Ibt+rX:+L34auS+UjfU2T21Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

127.0.0.1

Mutex

b162f04cafb8440c9b6c3de3fa6e04b1

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
01/26/2025 00:42:44
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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe

Executes dropped EXE 1 IoCs

pid	Process
244	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	87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe
244	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	244	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 244	3796	87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe	83
PID 3796 wrote to memory of 244	3796	87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe	83
PID 3796 wrote to memory of 244	3796	87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe	83

C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe
"C:\Users\Admin\AppData\Local\Temp\87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3796
- 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
  PID:244

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
840KB

MD5
cc0ca06bc879d94a1bc1451e9860f2b9

SHA1
1615869c3399c5427b9224624136de161befe936

SHA256
87eccc753002f265dc4cf3a59ba9963cea150ca891d7af615443523c4175b749

SHA512
ccba95edc93a19898c7883ef559de940cb34384601e0f00418cacd144e1f38dd74d3ddc7ff6cc822ccc26f0b95eb0e9a05064bbcc727b7e5c2edb12cd32bfac7

Download Submit
memory/244-24-0x00000000059A0000-0x0000000005B62000-memory.dmp

Filesize
1.8MB

Download
memory/244-23-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/244-27-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/244-26-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download
memory/244-25-0x00000000050C0000-0x00000000050D0000-memory.dmp

Filesize
64KB

Download
memory/244-22-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/3796-2-0x0000000004F70000-0x0000000004F7A000-memory.dmp

Filesize
40KB

Download
memory/3796-6-0x0000000005400000-0x000000000544C000-memory.dmp

Filesize
304KB

Download
memory/3796-9-0x0000000005540000-0x000000000558E000-memory.dmp

Filesize
312KB

Download
memory/3796-21-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download
memory/3796-1-0x0000000000540000-0x0000000000618000-memory.dmp

Filesize
864KB

Download
memory/3796-0-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/3796-5-0x00000000054A0000-0x0000000005532000-memory.dmp

Filesize
584KB

Download
memory/3796-4-0x00000000057B0000-0x0000000005D54000-memory.dmp

Filesize
5.6MB

Download
memory/3796-3-0x0000000074650000-0x0000000074E00000-memory.dmp

Filesize
7.7MB

Download

Analysis

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