orcus | 20393d6470b7bc3377893a522fa0d1e55683a583263e581d7460e3cd8e6155f2

General

Target

9fa4cccfa53bad5661ce943e04c9be90N.exe
Size

903KB
MD5

9fa4cccfa53bad5661ce943e04c9be90
SHA1

56e7b9ff0e9cb7f4c051a87d2d09f7af153228c0
SHA256

20393d6470b7bc3377893a522fa0d1e55683a583263e581d7460e3cd8e6155f2
SHA512

382b4e97dc9b0465e21866f957181756d1ebb6f98d562bd8771632af905b1cc5e3761dfd438c0de2a72ce6439427e07b7429875ecc0cbff9aa0e99cc62296696
SSDEEP

12288:j0XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCBfm9rR6W7BaepBwzo7dG1lFlWV:gam4MROxnF4HrrcI0AilFEvxHPToo1

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

s1.putinso.site:2047

Mutex

c324c0dedf48483e98d1048845609497

Attributes

autostart_method
TaskScheduler
enable_keylogger
false
install_path
%appdata%\mine\updater.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
updater
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/0x00070000000234cb-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/436-1-0x0000000000620000-0x0000000000708000-memory.dmp	orcus
behavioral2/files/0x00070000000234cb-13.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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	9fa4cccfa53bad5661ce943e04c9be90N.exe

Executes dropped EXE 2 IoCs

pid	Process
2516	updater.exe
232	updater.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	updater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9fa4cccfa53bad5661ce943e04c9be90N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updater.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 2516	436	9fa4cccfa53bad5661ce943e04c9be90N.exe	86
PID 436 wrote to memory of 2516	436	9fa4cccfa53bad5661ce943e04c9be90N.exe	86
PID 436 wrote to memory of 2516	436	9fa4cccfa53bad5661ce943e04c9be90N.exe	86

C:\Users\Admin\AppData\Local\Temp\9fa4cccfa53bad5661ce943e04c9be90N.exe
"C:\Users\Admin\AppData\Local\Temp\9fa4cccfa53bad5661ce943e04c9be90N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:436
- C:\Users\Admin\AppData\Roaming\mine\updater.exe
  "C:\Users\Admin\AppData\Roaming\mine\updater.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2516

C:\Users\Admin\AppData\Roaming\mine\updater.exe
C:\Users\Admin\AppData\Roaming\mine\updater.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:232

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\mine\updater.exe

Filesize
903KB

MD5
9fa4cccfa53bad5661ce943e04c9be90

SHA1
56e7b9ff0e9cb7f4c051a87d2d09f7af153228c0

SHA256
20393d6470b7bc3377893a522fa0d1e55683a583263e581d7460e3cd8e6155f2

SHA512
382b4e97dc9b0465e21866f957181756d1ebb6f98d562bd8771632af905b1cc5e3761dfd438c0de2a72ce6439427e07b7429875ecc0cbff9aa0e99cc62296696

Download Submit
C:\Users\Admin\AppData\Roaming\mine\updater.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/232-34-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/232-32-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/232-31-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/436-22-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/436-3-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/436-7-0x00000000055E0000-0x00000000055F2000-memory.dmp

Filesize
72KB

Download
memory/436-5-0x0000000005600000-0x0000000005BA4000-memory.dmp

Filesize
5.6MB

Download
memory/436-4-0x0000000004F30000-0x0000000004F8C000-memory.dmp

Filesize
368KB

Download
memory/436-0-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

Filesize
4KB

Download
memory/436-1-0x0000000000620000-0x0000000000708000-memory.dmp

Filesize
928KB

Download
memory/436-2-0x0000000004F20000-0x0000000004F2E000-memory.dmp

Filesize
56KB

Download
memory/436-6-0x00000000050F0000-0x0000000005182000-memory.dmp

Filesize
584KB

Download
memory/2516-26-0x0000000005D80000-0x0000000005D98000-memory.dmp

Filesize
96KB

Download
memory/2516-27-0x0000000005DE0000-0x0000000005DF8000-memory.dmp

Filesize
96KB

Download
memory/2516-29-0x0000000005E40000-0x0000000005E50000-memory.dmp

Filesize
64KB

Download
memory/2516-30-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

Filesize
40KB

Download
memory/2516-25-0x0000000005CF0000-0x0000000005D3E000-memory.dmp

Filesize
312KB

Download
memory/2516-24-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/2516-23-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/2516-35-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download

Analysis

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