orcus | c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2

General

Target

c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe
Size

3.0MB
MD5

5487d71c19c09ded835191e89feba640
SHA1

6c13f1e61e8cf66ae728a53c49497899def41092
SHA256

c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2
SHA512

0d17303a9bc1903d298eb5d6cc8d1d36bfa1950c9fe14d8d03623381c5d4f75f5e6eb376474b4d67081906630459be4374a980992622515b3646170b8b8f6181
SSDEEP

49152:dsFN8QFUwqYZeM9/ZzzBjMkPUayX82+YXAypQxb9ndo9JnCmwWncFf0I74gu3+SM:do0wGGzBjryX82uypSb9ndo9JCm

Score

10^/10

orcus rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

voidsystems.duckdns.org:23210

Mutex

db2de9eb436a494988e51052087353b5

Attributes

autostart_method
TaskScheduler
enable_keylogger
false
install_path
%programfiles%\KernelGuard\SafeGuard.exe
reconnect_delay
10000
registry_keyname
KernelEncryptionProtocolKEP
taskscheduler_taskname
SafeGuard
watchdog_path
AppData\KernelAntiLoopGuard

Signatures

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

Orcurs Rat Executable 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4812-1-0x000001A13C060000-0x000001A13C35C000-memory.dmp	orcus
behavioral2/files/0x000700000002345e-35.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

Processes:

c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

Executes dropped EXE 4 IoCs

Processes:

WindowsInput.exeWindowsInput.exeSafeGuard.exeSafeGuard.exe

pid	Process
4484	WindowsInput.exe
2496	WindowsInput.exe
3992	SafeGuard.exe
4688	SafeGuard.exe

Drops file in System32 directory 3 IoCs

Processes:

c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exeWindowsInput.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

Drops file in Program Files directory 3 IoCs

Processes:

c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

description	ioc	Process
File created	C:\Program Files\KernelGuard\SafeGuard.exe	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe
File opened for modification	C:\Program Files\KernelGuard\SafeGuard.exe	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe
File created	C:\Program Files\KernelGuard\SafeGuard.exe.config	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

Processes:

OpenWith.exeSafeGuard.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	SafeGuard.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

OpenWith.exe

pid	Process
712	OpenWith.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe

description	pid	Process	procid_target
PID 4812 wrote to memory of 4484	4812	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe	82
PID 4812 wrote to memory of 4484	4812	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe	82
PID 4812 wrote to memory of 3992	4812	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe	84
PID 4812 wrote to memory of 3992	4812	c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe	84

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe
"C:\Users\Admin\AppData\Local\Temp\c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2N.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:4484
- C:\Program Files\KernelGuard\SafeGuard.exe
  "C:\Program Files\KernelGuard\SafeGuard.exe"
  2⤵
  - Executes dropped EXE
  - Modifies registry class
  PID:3992

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2496

C:\Program Files\KernelGuard\SafeGuard.exe
"C:\Program Files\KernelGuard\SafeGuard.exe"
1⤵
- Executes dropped EXE
PID:4688

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\KernelGuard\SafeGuard.exe

Filesize
3.0MB

MD5
5487d71c19c09ded835191e89feba640

SHA1
6c13f1e61e8cf66ae728a53c49497899def41092

SHA256
c5ad23faa63952a9c2a6f26fdbc0996bf7b44ba0c566b209a9fa0ffd97404cd2

SHA512
0d17303a9bc1903d298eb5d6cc8d1d36bfa1950c9fe14d8d03623381c5d4f75f5e6eb376474b4d67081906630459be4374a980992622515b3646170b8b8f6181

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
a80be96476032d2eaa901d180fe9fb73

SHA1
f378d0bc5fefb9ea0b5006f020091ffcbcd7acec

SHA256
d6075c1ed6f285f5de01ce0cc6a817b59054da8b19f20bc7081cfe7fb2b1af42

SHA512
210c0c4c845b416a601015fba5ccd2a3e8a4b81d3b4c5e0491b07bd0dcad938d9b118728bb1abc21eb73c5f9263a3c08e1822ece91002a2d1f0983857f0192ea

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/2496-29-0x00000241CFFA0000-0x00000241D00AA000-memory.dmp

Filesize
1.0MB

Download
memory/3992-50-0x000001B500230000-0x000001B500240000-memory.dmp

Filesize
64KB

Download
memory/3992-49-0x000001B500210000-0x000001B500228000-memory.dmp

Filesize
96KB

Download
memory/3992-47-0x000001B500030000-0x000001B500088000-memory.dmp

Filesize
352KB

Download
memory/4484-22-0x000001C5ED5C0000-0x000001C5ED5FC000-memory.dmp

Filesize
240KB

Download
memory/4484-19-0x000001C5ED150000-0x000001C5ED15C000-memory.dmp

Filesize
48KB

Download
memory/4484-20-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4484-23-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4484-21-0x000001C5ED530000-0x000001C5ED542000-memory.dmp

Filesize
72KB

Download
memory/4484-27-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-0-0x00007FFACF013000-0x00007FFACF015000-memory.dmp

Filesize
8KB

Download
memory/4812-5-0x000001A13E0F0000-0x000001A13E102000-memory.dmp

Filesize
72KB

Download
memory/4812-4-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-46-0x00007FFACF010000-0x00007FFACFAD1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-3-0x000001A13E0A0000-0x000001A13E0AE000-memory.dmp

Filesize
56KB

Download
memory/4812-2-0x000001A13DFC0000-0x000001A13E01C000-memory.dmp

Filesize
368KB

Download
memory/4812-1-0x000001A13C060000-0x000001A13C35C000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads