orcus | 0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b

General

Target

0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe
Size

2.7MB
MD5

28be9d2f6d77d4c7d10724d4f3545b78
SHA1

7c846af9a898034774107a687bb76e9d4253e6eb
SHA256

0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b
SHA512

59e19a541d63db0c353eaa314914144ec8be310afab8883f5546ab92426ee73044ca5378c02a7434428252e62fed256ec98b87787b81e3fcee2c951f224921e8
SSDEEP

24576:HAHnh+eWsN3skA4RV1Hom2KXMmHaf6dKYwjtOFK3EBgLrlNuErLo5i8144OTu6a1:6h+ZkldoPK8YaSXh

Score

10^/10

orcus w1nd3f discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

W1ND3F

C2

orcus.airdns.org:2172

Mutex

W1ND3F2238799525ef4ef7b3a20ac12f2d076b

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%appdata%\HD Audio Driver\Version\4.201\Devices\HD Audio Driver Update.exe
reconnect_delay
10000
registry_keyname
HD Audio Driver Update
taskscheduler_taskname
HD Audio Driver Updater
watchdog_path
AppData\HD Audio Driver Sync.exe

Signatures

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

Orcurs Rat Executable 1 IoCs

resource	yara_rule
behavioral2/memory/4700-2-0x0000000000400000-0x00000000004E8000-memory.dmp	orcus

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Service.url	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2416 set thread context of 4700	2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe	102

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	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe
2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe
2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe
2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4700	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4700	RegSvcs.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 4700	2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe	102
PID 2416 wrote to memory of 4700	2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe	102
PID 2416 wrote to memory of 4700	2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe	102
PID 2416 wrote to memory of 4700	2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe	102
PID 2416 wrote to memory of 4700	2416	0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe	102

C:\Users\Admin\AppData\Local\Temp\0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe
"C:\Users\Admin\AppData\Local\Temp\0f3e8ee95fa2cc328a2c42642a6eb514132b925ab1e22a1db792f4d717c73f5b.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2416-0-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/4700-2-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/4700-6-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/4700-7-0x0000000005760000-0x000000000576E000-memory.dmp

Filesize
56KB

Download
memory/4700-8-0x00000000742D0000-0x0000000074A80000-memory.dmp

Filesize
7.7MB

Download
memory/4700-9-0x0000000005770000-0x00000000057CC000-memory.dmp

Filesize
368KB

Download
memory/4700-10-0x0000000005DA0000-0x0000000006344000-memory.dmp

Filesize
5.6MB

Download
memory/4700-11-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/4700-12-0x00000000058F0000-0x0000000005902000-memory.dmp

Filesize
72KB

Download
memory/4700-13-0x0000000005900000-0x0000000005908000-memory.dmp

Filesize
32KB

Download
memory/4700-14-0x0000000005D40000-0x0000000005D58000-memory.dmp

Filesize
96KB

Download
memory/4700-15-0x0000000006770000-0x0000000006932000-memory.dmp

Filesize
1.8MB

Download
memory/4700-16-0x0000000006590000-0x00000000065A0000-memory.dmp

Filesize
64KB

Download
memory/4700-17-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

Filesize
40KB

Download
memory/4700-18-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/4700-19-0x00000000742D0000-0x0000000074A80000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing