Overview

overview

10

Static

static

10

c39a61b17b...47.exe

windows7-x64

10

c39a61b17b...47.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c39a61b17b9dfe4ceb6b4ad52223be0e3dfb9692978edbe2cfa4e835e3ff1847

  • Size

    68KB

  • Sample

    240615-b8llmsyenr

  • MD5

    746bd223eaed1fe7646f040706e12bb2

  • SHA1

    f14d7f3a9ae2a3582225cdf054bc94c5f9a253cb

  • SHA256

    c39a61b17b9dfe4ceb6b4ad52223be0e3dfb9692978edbe2cfa4e835e3ff1847

  • SHA512

    62f15abffcc081242ebb3da9789a5e8257072082b928fa43741ea1fbac8f4cf880e46f7920d5406e9a5c69e8b862ddb563f47920bda328f473aca8d00cb06e83

  • SSDEEP

    1536:zFmpNj9bfT1Tgy+mFSLySbLW2pkbk7ddA6XUvOmR+k:zwfjBfsmF61bLW2h7dfUvOm0k

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

z-cv.gl.at.ply.gg:14939

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      c39a61b17b9dfe4ceb6b4ad52223be0e3dfb9692978edbe2cfa4e835e3ff1847

    • Size

      68KB

    • MD5

      746bd223eaed1fe7646f040706e12bb2

    • SHA1

      f14d7f3a9ae2a3582225cdf054bc94c5f9a253cb

    • SHA256

      c39a61b17b9dfe4ceb6b4ad52223be0e3dfb9692978edbe2cfa4e835e3ff1847

    • SHA512

      62f15abffcc081242ebb3da9789a5e8257072082b928fa43741ea1fbac8f4cf880e46f7920d5406e9a5c69e8b862ddb563f47920bda328f473aca8d00cb06e83

    • SSDEEP

      1536:zFmpNj9bfT1Tgy+mFSLySbLW2pkbk7ddA6XUvOmR+k:zwfjBfsmF61bLW2h7dfUvOm0k

    Score
    10/10
    xwormexecutionpersistencerattrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Detects Windows executables referencing non-Windows User-Agents

    • 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

    • 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

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks