orcus | 71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4

General

Target

71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe
Size

5.0MB
MD5

ecb897fbec48d393966818f238a3a08c
SHA1

b1a79d839564bef6ceb8aa2812fa1be1d659c3b5
SHA256

71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4
SHA512

be629cb22b3a35414ca855fcd2c4c5c70599bec089f2c5ceb2a48d0a05ffbbbf393c10428a2e1e3e810caee9ff2233f5d244afe5e0c1afb5aa3dc5ee3690da4f
SSDEEP

24576:EAi4MROxnFVptJSerrcI0AilFEvxHPaooAZ:EgMihTSerrcI0AilFEvxHPn

Score

10^/10

orcus persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

172.30.186.213:10134

Mutex

d03c8bb7fd3145ff909313b6f02ad456

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Windows
taskscheduler_taskname
Orcus
watchdog_path
AppData\OrcusWatchdog.exe

Signatures

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

Orcus main payload 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023421-14.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/4948-1-0x0000000000480000-0x0000000000594000-memory.dmp	orcus
behavioral2/files/0x0007000000023421-14.dat	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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe

Executes dropped EXE 1 IoCs

pid	Process
4312	Orcus.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-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows = "\"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	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	Orcus.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4312	Orcus.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 4312	4948	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe	85
PID 4948 wrote to memory of 4312	4948	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe	85
PID 4948 wrote to memory of 4312	4948	71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe	85

C:\Users\Admin\AppData\Local\Temp\71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe
"C:\Users\Admin\AppData\Local\Temp\71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4948
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
5.0MB

MD5
ecb897fbec48d393966818f238a3a08c

SHA1
b1a79d839564bef6ceb8aa2812fa1be1d659c3b5

SHA256
71a2ad343ee370d37b0df04d25b6baa6c6c30ca6ed144f160f4d3abd22aa02c4

SHA512
be629cb22b3a35414ca855fcd2c4c5c70599bec089f2c5ceb2a48d0a05ffbbbf393c10428a2e1e3e810caee9ff2233f5d244afe5e0c1afb5aa3dc5ee3690da4f

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/4312-27-0x0000000005820000-0x000000000586E000-memory.dmp

Filesize
312KB

Download
memory/4312-24-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/4312-32-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/4312-31-0x00000000061D0000-0x00000000061DA000-memory.dmp

Filesize
40KB

Download
memory/4312-29-0x00000000062A0000-0x0000000006462000-memory.dmp

Filesize
1.8MB

Download
memory/4312-30-0x00000000060D0000-0x00000000060E0000-memory.dmp

Filesize
64KB

Download
memory/4312-28-0x0000000005890000-0x00000000058A8000-memory.dmp

Filesize
96KB

Download
memory/4312-26-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/4948-25-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/4948-3-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/4948-1-0x0000000000480000-0x0000000000594000-memory.dmp

Filesize
1.1MB

Download
memory/4948-2-0x0000000002880000-0x000000000288E000-memory.dmp

Filesize
56KB

Download
memory/4948-8-0x00000000055C0000-0x00000000055C8000-memory.dmp

Filesize
32KB

Download
memory/4948-0-0x0000000074F8E000-0x0000000074F8F000-memory.dmp

Filesize
4KB

Download
memory/4948-7-0x00000000055B0000-0x00000000055C2000-memory.dmp

Filesize
72KB

Download
memory/4948-6-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/4948-5-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/4948-4-0x0000000004EB0000-0x0000000004F0C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads