Overview

overview

10

Static

static

10

ded5515158...ce.exe

windows7-x64

10

ded5515158...ce.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1fee5ce12cd61659dd46575a2e378361.bin

  • Size

    168KB

  • Sample

    240630-bq72xs1fnb

  • MD5

    defdf8565b38fece41100f8353566661

  • SHA1

    5562faa4e47cc084e7fbe798463ce91ab96934d0

  • SHA256

    2ed8aebbe1157d9b321637bf6c8b841d70b903b26109ff412ab35d9b558f0cdb

  • SHA512

    47c1f8665cdb57a44510f10b5b86fe125886a94b04855cc280fc61de821d305e1ef2e5d08530a381ef9c659e4cb5c023438aed73b5b42951f97a096f9e4ca7d9

  • SSDEEP

    3072:MEnardMtbbZvqfc6uujQ6M3AzZ5dKscEKsiyw9WreQjNGXCm:MiardebbZvL6uujQ6pt1iyRVoz

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

156.225.129.202:7005

Attributes
  • Install_directory

    %AppData%

  • install_file

    crss.exe

Targets

    • Target

      ded5515158d7b1ed9520713645bc63d7bb872f0a212c77ebb1afce0d16fad0ce.exe

    • Size

      251KB

    • MD5

      1fee5ce12cd61659dd46575a2e378361

    • SHA1

      91722b8dcf5318c379e5ae96692928b22b055969

    • SHA256

      ded5515158d7b1ed9520713645bc63d7bb872f0a212c77ebb1afce0d16fad0ce

    • SHA512

      9e46fe97922c9c24c9ceb31201bb703ba47b73248c413633c097ec8b44ee026fb4ce2569a3f7578f753b3d8cd7f6ed5aa425bb308b49b7e0062a685468d38638

    • SSDEEP

      3072:vfWp/2bS2/YnEtOryoW8SKfbzxcwg7es6/Vsb8VKTu549oJMfF/H9N3Ky9NzLnK:dbn/YnWUhcX7elbKTua9bfF/H9d9n

    Score
    10/10
    xwormexecutionpersistencerattrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks