orcus | da6cc38febbd89b0276aaa39e43ca4beae18db2563d3954958d09c7ce07d15b8

General

Target

Builder.exe
Size

1.0MB
MD5

6af52570404e4ba88d83c268bb9da934
SHA1

85765f1305efa0554c1624cdbcae3f91239a6a66
SHA256

da6cc38febbd89b0276aaa39e43ca4beae18db2563d3954958d09c7ce07d15b8
SHA512

5f3d2dbf8ee361ada96ee2c91f9b35397b3c5e692cb2bbf88b103b6c352c232622077e73847070c14418ed4c8689a6ae956ddedd6bd70b8cab702a795d5f6d2f
SSDEEP

24576:4DPS04YNEMuExDiU6E5R9s8xY/2l/dVB8Ibt+rYhmpnncVy:4Dl4auS+UjfU2T38Ibt+rbpnoy

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

147.185.221.23

communications-sugar.gl.at.ply.gg

Mutex

d031b9dd54b940159425126d47f2c06a

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
11/18/2024 13:11:11
plugins
AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgYQA0ADYAMQA1ADcAYgA2ADYAYgA1AGUANAA1AGEAZQBiADgAMQA1AGYAMgA0AGIAYgAzAGEAOQA3AGIANQA2AAEFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDEANgA1ADMANAA1ADcANgBlAGQAZQA5ADQAYgAxADUAYgBiAGQAYQBmAGQAOQBkADEAZAA1ADYAOAAzAGUAZQABAAAEBA==
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-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	Builder.exe

Executes dropped EXE 1 IoCs

pid	Process
4240	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	Builder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe
4240	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4240	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 4240	4756	Builder.exe	88
PID 4756 wrote to memory of 4240	4756	Builder.exe	88
PID 4756 wrote to memory of 4240	4756	Builder.exe	88

C:\Users\Admin\AppData\Local\Temp\Builder.exe
"C:\Users\Admin\AppData\Local\Temp\Builder.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4756
- 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:4240

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
1.0MB

MD5
6af52570404e4ba88d83c268bb9da934

SHA1
85765f1305efa0554c1624cdbcae3f91239a6a66

SHA256
da6cc38febbd89b0276aaa39e43ca4beae18db2563d3954958d09c7ce07d15b8

SHA512
5f3d2dbf8ee361ada96ee2c91f9b35397b3c5e692cb2bbf88b103b6c352c232622077e73847070c14418ed4c8689a6ae956ddedd6bd70b8cab702a795d5f6d2f

Download Submit
memory/4240-29-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4240-28-0x00000000061B0000-0x00000000061BA000-memory.dmp

Filesize
40KB

Download
memory/4240-27-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/4240-26-0x00000000061E0000-0x00000000063A2000-memory.dmp

Filesize
1.8MB

Download
memory/4240-25-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4240-24-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4756-8-0x0000000005000000-0x0000000005008000-memory.dmp

Filesize
32KB

Download
memory/4756-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/4756-11-0x00000000050E0000-0x000000000512E000-memory.dmp

Filesize
312KB

Download
memory/4756-7-0x0000000004C80000-0x0000000004C88000-memory.dmp

Filesize
32KB

Download
memory/4756-6-0x0000000004FA0000-0x0000000004FEC000-memory.dmp

Filesize
304KB

Download
memory/4756-23-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4756-5-0x0000000005040000-0x00000000050D2000-memory.dmp

Filesize
584KB

Download
memory/4756-4-0x0000000005250000-0x00000000057F4000-memory.dmp

Filesize
5.6MB

Download
memory/4756-3-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4756-2-0x0000000002520000-0x000000000252A000-memory.dmp

Filesize
40KB

Download
memory/4756-1-0x00000000000A0000-0x000000000019C000-memory.dmp

Filesize
1008KB

Download

Analysis

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