orcus | 3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3

General

Target

3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe
Size

948KB
MD5

9a4bac03af84b7174da19ae8d87684ce
SHA1

1da689279ce3746dcdd8ed0b68c868d666eca2fb
SHA256

3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3
SHA512

37e91b7695e2fd6ac3ab71bdf487686512e461a47a78adee6a13ff48c59a51f168cce1ce8397909cddeade050e8ece734f90bb0e82a0190e1481b1fcb7b6bc2b
SSDEEP

24576:cU04MROxnFTOVrrcI0AilFEvxHPR2ooVb:cmMi18rrcI0AilFEvxHP

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

b7fscoc.localto.net:8935

Mutex

cf06369f7b98472f97643448b3df76ba

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%appdata%\Roaming\am1\RuntimeBroker.exe
reconnect_delay
10000
registry_keyname
RuntimeBroker
taskscheduler_taskname
RuntimeBroker
watchdog_path
AppData\Runtime.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/0x0007000000023c92-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/5020-1-0x00000000005C0000-0x00000000006B2000-memory.dmp	orcus
behavioral2/files/0x0007000000023c92-13.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe

Executes dropped EXE 1 IoCs

pid	Process
1456	RuntimeBroker.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	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RuntimeBroker.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	RuntimeBroker.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1456	RuntimeBroker.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1456	RuntimeBroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1456	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 1456	5020	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	86
PID 5020 wrote to memory of 1456	5020	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	86
PID 5020 wrote to memory of 1456	5020	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	86

C:\Users\Admin\AppData\Local\Temp\3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe
"C:\Users\Admin\AppData\Local\Temp\3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe
  "C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1456

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\Roaming\am1\RuntimeBroker.exe

Filesize
948KB

MD5
9a4bac03af84b7174da19ae8d87684ce

SHA1
1da689279ce3746dcdd8ed0b68c868d666eca2fb

SHA256
3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3

SHA512
37e91b7695e2fd6ac3ab71bdf487686512e461a47a78adee6a13ff48c59a51f168cce1ce8397909cddeade050e8ece734f90bb0e82a0190e1481b1fcb7b6bc2b

Download Submit
C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/1456-25-0x0000000006340000-0x000000000638E000-memory.dmp

Filesize
312KB

Download
memory/1456-23-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/1456-30-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/1456-29-0x0000000007450000-0x000000000745A000-memory.dmp

Filesize
40KB

Download
memory/1456-28-0x0000000006CC0000-0x0000000006CD0000-memory.dmp

Filesize
64KB

Download
memory/1456-27-0x0000000006E80000-0x0000000007042000-memory.dmp

Filesize
1.8MB

Download
memory/1456-26-0x0000000006390000-0x00000000063A8000-memory.dmp

Filesize
96KB

Download
memory/5020-1-0x00000000005C0000-0x00000000006B2000-memory.dmp

Filesize
968KB

Download
memory/5020-24-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/5020-3-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/5020-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/5020-2-0x0000000004FA0000-0x0000000004FAE000-memory.dmp

Filesize
56KB

Download
memory/5020-7-0x00000000051A0000-0x00000000051B2000-memory.dmp

Filesize
72KB

Download
memory/5020-6-0x00000000051D0000-0x0000000005262000-memory.dmp

Filesize
584KB

Download
memory/5020-5-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/5020-4-0x0000000005080000-0x00000000050DC000-memory.dmp

Filesize
368KB

Download

Analysis

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