Overview

overview

10

Static

static

1

coin.b.bat

windows7-x64

8

coin.b.bat

windows10-2004-x64

10

Sharing

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General

  • Target

    coin.b.bat

  • Size

    91KB

  • Sample

    240525-rcvsfafe67

  • MD5

    520c1190bbbe3a7359a6e72f76618245

  • SHA1

    50d5e441a97aad127e8d5ad8c28c848b3be02c5d

  • SHA256

    91813779ab003d08ee337226c9ba845aaca64098e9740e6aaf30a0c8fa833ee0

  • SHA512

    98ebc8ee9b1b1d7302a5771f1e6b174903a9c249459a98e57e8cd48ce8760997b414246c7c9f05d1ce08fa299dcc2496c389b4126af647e8f2a6e9f81d15f749

  • SSDEEP

    1536:HtkPhsAgh2YhIXwWIN0hdI7E5WQTpJlqb3mE81vT1dkYHcga3kplWaEDN4nVoLuR:NeCAgX+vIuEE5PlJAb3mE81L1dkhX3mV

Score
10/10
xwormexecutionpersistenceransomwarerattrojan

Malware Config

Extracted

Family

xworm

C2

continue-silk.gl.at.ply.gg:58347

127.0.0.1:58347
Attributes
  • Install_directory

    %Temp%

  • install_file

    steamwebhelper.exe

Targets

    • Target

      coin.b.bat

    • Size

      91KB

    • MD5

      520c1190bbbe3a7359a6e72f76618245

    • SHA1

      50d5e441a97aad127e8d5ad8c28c848b3be02c5d

    • SHA256

      91813779ab003d08ee337226c9ba845aaca64098e9740e6aaf30a0c8fa833ee0

    • SHA512

      98ebc8ee9b1b1d7302a5771f1e6b174903a9c249459a98e57e8cd48ce8760997b414246c7c9f05d1ce08fa299dcc2496c389b4126af647e8f2a6e9f81d15f749

    • SSDEEP

      1536:HtkPhsAgh2YhIXwWIN0hdI7E5WQTpJlqb3mE81vT1dkYHcga3kplWaEDN4nVoLuR:NeCAgX+vIuEE5PlJAb3mE81L1dkhX3mV

    Score
    10/10
    executionxwormpersistenceransomwarerattrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      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.

    • Sets desktop wallpaper using registry

      ransomware
    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

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Resource Development

Reconnaissance

Tasks