orcus | c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135

General

Target

c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe
Size

1.2MB
MD5

372fcd69cda4ecfe9bc9bfd00d26b5f9
SHA1

ffc0cbd9a0ae92fe3e6b351b1e4616d5ae899cc0
SHA256

c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135
SHA512

305994ca1314df012e0799a98f28e5f26f01dde0064f0cb2ba52192760374aef48b135b15047998bd33bc86ac92c3e5b41153e0eaeceb2c03290790972acff45
SSDEEP

24576:poeR9Sxp3S04YNEMuExDiU6E5R9s8xY/2l/dNN1Ibt+rI:poCAxpt4auS+UjfU2TL1Ibt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

/week-twice.gl.at.ply.gg

Mutex

d64295ec31d4429abd23cb369544a4e0

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
12/29/2024 00:26:48
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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	mongolianmonkeycheese.exe

Executes dropped EXE 2 IoCs

pid	Process
1864	mongolianmonkeycheese.exe
2640	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 3 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	c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mongolianmonkeycheese.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe
2640	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	AudioDriver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 1864	3100	c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe	82
PID 3100 wrote to memory of 1864	3100	c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe	82
PID 3100 wrote to memory of 1864	3100	c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe	82
PID 1864 wrote to memory of 2640	1864	mongolianmonkeycheese.exe	83
PID 1864 wrote to memory of 2640	1864	mongolianmonkeycheese.exe	83
PID 1864 wrote to memory of 2640	1864	mongolianmonkeycheese.exe	83

C:\Users\Admin\AppData\Local\Temp\c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe
"C:\Users\Admin\AppData\Local\Temp\c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Users\Admin\AppData\Local\Temp\c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135_edcb273f-bb9f-49cd-a36a-a664a01f3060\mongolianmonkeycheese.exe
  "C:\Users\Admin\AppData\Local\Temp\c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135_edcb273f-bb9f-49cd-a36a-a664a01f3060\mongolianmonkeycheese.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2640

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\Local\Temp\c419fc5d1c432a403f1ae446533a718736c05bc586dc8bacc4386c8d10160135_edcb273f-bb9f-49cd-a36a-a664a01f3060\mongolianmonkeycheese.exe

Filesize
840KB

MD5
8782eb20d30063d16cb1a863abde53bf

SHA1
a2ea52cb1a34e50dfea8a1c15036f1331b19059b

SHA256
cc07c1906162fbeb46c77125d3b0bcc61824c4957cb42225ba2589d70574a134

SHA512
a5921c215d8e0c6f9b6febe247643db5c97c611b6c52b5ba3ec4c44a6aee2903496b9ae968cc7e5819c404680752b944309a9b53fc80426c939009c7a11ae453

Download Submit
memory/1864-15-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

Download
memory/1864-33-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1864-16-0x0000000005680000-0x00000000056CC000-memory.dmp

Filesize
304KB

Download
memory/1864-20-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1864-14-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1864-12-0x0000000000940000-0x0000000000A18000-memory.dmp

Filesize
864KB

Download
memory/1864-13-0x00000000012D0000-0x00000000012DA000-memory.dmp

Filesize
40KB

Download
memory/1864-19-0x00000000057C0000-0x000000000580E000-memory.dmp

Filesize
312KB

Download
memory/2640-40-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2640-38-0x0000000006490000-0x00000000064A0000-memory.dmp

Filesize
64KB

Download
memory/2640-32-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2640-34-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2640-37-0x0000000006510000-0x00000000066D2000-memory.dmp

Filesize
1.8MB

Download
memory/2640-39-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

Filesize
40KB

Download
memory/3100-1-0x00000000009E0000-0x0000000000A2A000-memory.dmp

Filesize
296KB

Download
memory/3100-4-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/3100-2-0x0000000005380000-0x00000000053A4000-memory.dmp

Filesize
144KB

Download
memory/3100-36-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/3100-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/3100-3-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download

Analysis

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