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
behavioral1/files/0x0008000000019394-10.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2004-1-0x0000000000930000-0x0000000000A22000-memory.dmp	orcus
behavioral1/files/0x0008000000019394-10.dat	orcus
behavioral1/memory/3040-18-0x0000000000AA0000-0x0000000000B92000-memory.dmp	orcus

Executes dropped EXE 1 IoCs

pid	Process
3040	RuntimeBroker.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.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	3040	RuntimeBroker.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3040	RuntimeBroker.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3040	RuntimeBroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3040	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30
PID 2004 wrote to memory of 3040	2004	3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe	30

C:\Users\Admin\AppData\Local\Temp\3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe
"C:\Users\Admin\AppData\Local\Temp\3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- 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:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe

Filesize
948KB

MD5
9a4bac03af84b7174da19ae8d87684ce

SHA1
1da689279ce3746dcdd8ed0b68c868d666eca2fb

SHA256
3d13f31953c9ce3374a8c532bede16472856662483579f0c272524b44339a8c3

SHA512
37e91b7695e2fd6ac3ab71bdf487686512e461a47a78adee6a13ff48c59a51f168cce1ce8397909cddeade050e8ece734f90bb0e82a0190e1481b1fcb7b6bc2b

Download Submit
memory/2004-15-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2004-1-0x0000000000930000-0x0000000000A22000-memory.dmp

Filesize
968KB

Download
memory/2004-2-0x00000000004D0000-0x00000000004DE000-memory.dmp

Filesize
56KB

Download
memory/2004-3-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2004-4-0x0000000000530000-0x000000000058C000-memory.dmp

Filesize
368KB

Download
memory/2004-5-0x0000000001ED0000-0x0000000001EE2000-memory.dmp

Filesize
72KB

Download
memory/2004-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/3040-16-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-18-0x0000000000AA0000-0x0000000000B92000-memory.dmp

Filesize
968KB

Download
memory/3040-19-0x0000000001FA0000-0x0000000001FEE000-memory.dmp

Filesize
312KB

Download
memory/3040-20-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-21-0x0000000000710000-0x0000000000728000-memory.dmp

Filesize
96KB

Download
memory/3040-22-0x0000000002030000-0x0000000002040000-memory.dmp

Filesize
64KB

Download
memory/3040-23-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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