orcus | 7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831

General

Target

7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe
Size

843KB
MD5

2cc12a9d19bf90e80af45bf3138491c6
SHA1

1f7bca251aa4f2e2f51f2b79ce0b6e8d052b7bd3
SHA256

7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831
SHA512

648c25cc5c5ce440a0bc68bcffe205ada80fe697aa1f41ca56dfb817bbaf637db592b59b5b5ecf4b3d66a4535c01bd54ba900d9b2667233642ac9308579d39f4
SSDEEP

24576:bxYS04YNEMuExDiU6E5R9s8xY/2l/dlLbB83LIbt+rA:bxA4auS+UjfU2T1b63LIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

82.117.87.72

Mutex

90061b9b1af04713be86c1c3e404bf64

Attributes

administration_rights_required
false
anti_debugger
false
anti_tcp_analyzer
false
antivm
false
autostart_method
1
change_creation_date
false
force_installer_administrator_privileges
false
hide_file
false
install
false
installation_folder
%appdata%\Microsoft\TiWorker.exe
installservice
false
keylogger_enabled
false
newcreationdate
05/01/2024 13:22:54
plugins
AgUFyfihswTdIPqEArukcmEdSF06Hw9CAFMAbwBEACAAUAByAG8AdABlAGMAdABpAG8AbgAHAzEALgAwAEEgNQBlAGIAOAA5ADUAMwA3ADYANQBkADIANABjADcAYgBiAGEAMgA3ADkAZQAzADIAMAA4ADgAMgA4AGYAMQA5AAEAAAACAg==
reconnect_delay
10000
registry_autostart_keyname
Audio HD Driver
registry_hidden_autostart
false
set_admin_flag
false
tasksch_name
Audio HD Driver
tasksch_request_highest_privileges
false
try_other_autostart_onfail
false

aes.plain

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2192	TiWorker.exe

Loads dropped DLL 1 IoCs

pid	Process
2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.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	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TiWorker.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe
2192	TiWorker.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	TiWorker.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31
PID 2100 wrote to memory of 2192	2100	7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe	31

C:\Users\Admin\AppData\Local\Temp\7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe
"C:\Users\Admin\AppData\Local\Temp\7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Roaming\Microsoft\TiWorker.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\TiWorker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2192

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\Microsoft\TiWorker.exe

Filesize
843KB

MD5
2cc12a9d19bf90e80af45bf3138491c6

SHA1
1f7bca251aa4f2e2f51f2b79ce0b6e8d052b7bd3

SHA256
7da8336b47a47ac6c128b2bd13e1175791b33ba0c488c1ea9a2a933cd0d51831

SHA512
648c25cc5c5ce440a0bc68bcffe205ada80fe697aa1f41ca56dfb817bbaf637db592b59b5b5ecf4b3d66a4535c01bd54ba900d9b2667233642ac9308579d39f4

Download Submit
memory/2100-9-0x0000000000C20000-0x0000000000C6E000-memory.dmp

Filesize
312KB

Download
memory/2100-2-0x00000000008A0000-0x00000000008AA000-memory.dmp

Filesize
40KB

Download
memory/2100-3-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2100-4-0x0000000000A70000-0x0000000000ABC000-memory.dmp

Filesize
304KB

Download
memory/2100-5-0x00000000009A0000-0x00000000009A8000-memory.dmp

Filesize
32KB

Download
memory/2100-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x00000000010C0000-0x0000000001198000-memory.dmp

Filesize
864KB

Download
memory/2100-16-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2192-17-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2192-18-0x00000000000A0000-0x0000000000178000-memory.dmp

Filesize
864KB

Download
memory/2192-19-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2192-20-0x0000000001ED0000-0x0000000001EE0000-memory.dmp

Filesize
64KB

Download
memory/2192-21-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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