orcus | 744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 01:14

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General

Target

744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe
Size

935KB
MD5

d9efa6ddca490cf2c4614ca04f5d5f2c
SHA1

0fdb3199628bdd2489db70af59f172505545f0c0
SHA256

744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70
SHA512

df9b52b79a87a705e2de322346672b705cee0d3864a26f267e76de9b468ccf30a06a053ef4531dd1998ecb7e1d7cc72f8d954a798fd93dd4f25c0182a79f8448
SSDEEP

24576:ea64MROxnFj3mrkxrrcI0AilFEvxHPEoo1:eKMi1CqrrcI0AilFEvxHP

Score

10^/10

orcus discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

127.0.0.1:10134

Mutex

d0f852f528b54b79a18cd745ef31998e

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Audio HD drive
taskscheduler_taskname
Audio HD drive
watchdog_path
Temp\OrcusWatchdog.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b38-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/4088-1-0x00000000006C0000-0x00000000007AE000-memory.dmp	orcus
behavioral2/files/0x000a000000023b38-13.dat	orcus

Checks computer location settings 2 TTPs 3 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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Orcus.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	OrcusWatchdog.exe

Executes dropped EXE 4 IoCs

pid	Process
3288	Orcus.exe
2544	Orcus.exe
4808	OrcusWatchdog.exe
4444	OrcusWatchdog.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Audio HD drive = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\""	Orcus.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.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 5 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	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OrcusWatchdog.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OrcusWatchdog.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3288	Orcus.exe
3288	Orcus.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
4444	OrcusWatchdog.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe
3288	Orcus.exe
4444	OrcusWatchdog.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3288	Orcus.exe
Token: SeDebugPrivilege	4808	OrcusWatchdog.exe
Token: SeDebugPrivilege	4444	OrcusWatchdog.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3288	Orcus.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 3288	4088	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe	81
PID 4088 wrote to memory of 3288	4088	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe	81
PID 4088 wrote to memory of 3288	4088	744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe	81
PID 3288 wrote to memory of 4808	3288	Orcus.exe	83
PID 3288 wrote to memory of 4808	3288	Orcus.exe	83
PID 3288 wrote to memory of 4808	3288	Orcus.exe	83
PID 4808 wrote to memory of 4444	4808	OrcusWatchdog.exe	84
PID 4808 wrote to memory of 4444	4808	OrcusWatchdog.exe	84
PID 4808 wrote to memory of 4444	4808	OrcusWatchdog.exe	84

C:\Users\Admin\AppData\Local\Temp\744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe
"C:\Users\Admin\AppData\Local\Temp\744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3288
- - C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe
    "C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 3288 /protectFile
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4808
  - - C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe
      "C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 3288 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4444

C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Orcus\Orcus.exe

Filesize
935KB

MD5
d9efa6ddca490cf2c4614ca04f5d5f2c

SHA1
0fdb3199628bdd2489db70af59f172505545f0c0

SHA256
744f346ee7c463c40748722beba297a4f79511e0bc9317c21ae5932ed9e9ea70

SHA512
df9b52b79a87a705e2de322346672b705cee0d3864a26f267e76de9b468ccf30a06a053ef4531dd1998ecb7e1d7cc72f8d954a798fd93dd4f25c0182a79f8448

Download Submit
C:\Program Files (x86)\Orcus\Orcus.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OrcusWatchdog.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
memory/2544-52-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/2544-32-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/2544-29-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3288-33-0x0000000005C80000-0x0000000005C8A000-memory.dmp

Filesize
40KB

Download
memory/3288-30-0x0000000005D60000-0x0000000005F22000-memory.dmp

Filesize
1.8MB

Download
memory/3288-54-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3288-53-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3288-23-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3288-25-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3288-26-0x0000000005120000-0x000000000516E000-memory.dmp

Filesize
312KB

Download
memory/3288-28-0x00000000059F0000-0x0000000005A08000-memory.dmp

Filesize
96KB

Download
memory/3288-31-0x0000000005A30000-0x0000000005A40000-memory.dmp

Filesize
64KB

Download
memory/4088-7-0x0000000005290000-0x00000000052A2000-memory.dmp

Filesize
72KB

Download
memory/4088-5-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/4088-0-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/4088-4-0x0000000005100000-0x000000000515C000-memory.dmp

Filesize
368KB

Download
memory/4088-3-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/4088-2-0x00000000050F0000-0x00000000050FE000-memory.dmp

Filesize
56KB

Download
memory/4088-1-0x00000000006C0000-0x00000000007AE000-memory.dmp

Filesize
952KB

Download
memory/4088-24-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/4088-6-0x00000000052B0000-0x0000000005342000-memory.dmp

Filesize
584KB

Download
memory/4808-47-0x0000000000020000-0x0000000000028000-memory.dmp

Filesize
32KB

Download