orcus | a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82

General

Target

a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe
Size

906KB
MD5

b4eab1c810947a71db745d9c802c134d
SHA1

94e11ea5de995448854d07e8dc5a055356e07170
SHA256

a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82
SHA512

f7719dd7d552b7d332b44b42fe3342e9a697e63810f06b0479d41844f6c5772719694f50383a855b1aa5c0763a6f580340cb370c83e4b1716e3f0b11ced0494e
SSDEEP

24576:lVj4MROxnFdpSxXSlrrcI0AilFEvxHP87ool:lyMiZKSlrrcI0AilFEvxHP8

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

5.tcp.eu.ngrok.io:18995

Mutex

d335d39a018a4cd1a94ec55fa8de7473

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Orcus
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 family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023cb0-14.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/3016-1-0x0000000000CB0000-0x0000000000D98000-memory.dmp	orcus
behavioral2/files/0x0008000000023cb0-14.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	Orcus.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
19	5.tcp.eu.ngrok.io
45	5.tcp.eu.ngrok.io

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.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 2 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	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	Orcus.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2788	Orcus.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2788	Orcus.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2788	3016	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe	86
PID 3016 wrote to memory of 2788	3016	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe	86
PID 3016 wrote to memory of 2788	3016	a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe	86

C:\Users\Admin\AppData\Local\Temp\a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe
"C:\Users\Admin\AppData\Local\Temp\a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2788

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
906KB

MD5
b4eab1c810947a71db745d9c802c134d

SHA1
94e11ea5de995448854d07e8dc5a055356e07170

SHA256
a239ad28abd1639ad0e918ed6a06a5b158bbf79e075352d3ac0c49b27189de82

SHA512
f7719dd7d552b7d332b44b42fe3342e9a697e63810f06b0479d41844f6c5772719694f50383a855b1aa5c0763a6f580340cb370c83e4b1716e3f0b11ced0494e

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/2788-29-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2788-28-0x0000000006600000-0x000000000660A000-memory.dmp

Filesize
40KB

Download
memory/2788-27-0x0000000005AD0000-0x0000000005AE0000-memory.dmp

Filesize
64KB

Download
memory/2788-26-0x0000000005A90000-0x0000000005AA8000-memory.dmp

Filesize
96KB

Download
memory/2788-25-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2788-23-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3016-3-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3016-8-0x0000000005DC0000-0x0000000005DC8000-memory.dmp

Filesize
32KB

Download
memory/3016-7-0x0000000005DB0000-0x0000000005DC2000-memory.dmp

Filesize
72KB

Download
memory/3016-24-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3016-6-0x00000000058C0000-0x0000000005952000-memory.dmp

Filesize
584KB

Download
memory/3016-5-0x0000000005DD0000-0x0000000006374000-memory.dmp

Filesize
5.6MB

Download
memory/3016-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/3016-4-0x0000000005700000-0x000000000575C000-memory.dmp

Filesize
368KB

Download
memory/3016-2-0x00000000056F0000-0x00000000056FE000-memory.dmp

Filesize
56KB

Download
memory/3016-1-0x0000000000CB0000-0x0000000000D98000-memory.dmp

Filesize
928KB

Download

Analysis

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