Overview

overview

10

Static

static

10

xdwd.exe

windows10-ltsc 2021-x64

10

xdwd.exe

windows11-21h2-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    xdwd.exe

  • Size

    3.0MB

  • Sample

    241026-24y92szgjh

  • MD5

    40887369c101155d2cb098a476c144a3

  • SHA1

    7e5b376f1ed70c3fbfd34441a0c784b033191628

  • SHA256

    37a22a8adb289aa01b0a682fdea97105ac4df1bf6744fef205f5024405c1db55

  • SHA512

    a2870dcdc06f0523bd909760740b23392c5285f15b8bfc6738cc8ace46ff571f2db42cf4d3555fcdcd4902b07fd34bd3ed5cfc2802e7eec5ac82e07b258626df

  • SSDEEP

    49152:tefEKO3T5adZKM0sz5otCeEvsDKx+msbfGGW8wlBKJwAypQxbxEo9JnCmmAX8rZz:teftODUKTslWp2MpbfGGilIJPypSbxEY

Score
10/10
orcusdefense_evasionevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

orcus

C2

193.161.193.99:43991

Mutex

4f1df520a99845e0841d321a8597e7ed

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

Targets

    • Target

      xdwd.exe

    • Size

      3.0MB

    • MD5

      40887369c101155d2cb098a476c144a3

    • SHA1

      7e5b376f1ed70c3fbfd34441a0c784b033191628

    • SHA256

      37a22a8adb289aa01b0a682fdea97105ac4df1bf6744fef205f5024405c1db55

    • SHA512

      a2870dcdc06f0523bd909760740b23392c5285f15b8bfc6738cc8ace46ff571f2db42cf4d3555fcdcd4902b07fd34bd3ed5cfc2802e7eec5ac82e07b258626df

    • SSDEEP

      49152:tefEKO3T5adZKM0sz5otCeEvsDKx+msbfGGW8wlBKJwAypQxbxEo9JnCmmAX8rZz:teftODUKTslWp2MpbfGGilIJPypSbxEY

    Score
    10/10
    defense_evasionevasionexecutionpersistenceprivilege_escalationtrojan

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • UAC bypass

      evasiontrojan

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Windows security modification

      evasiontrojan

    • Checks whether UAC is enabled

      evasiontrojan

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Drops desktop.ini file(s)

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

      defense_evasionpersistenceprivilege_escalation
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Impair Defenses

3
T1562

Disable or Modify Tools

3
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks