Overview

overview

10

Static

static

3

CryptoWall.exe

windows11-21h2-x64

10

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General

  • Target

    CryptoWall.exe

  • Size

    132KB

  • Sample

    240924-wfgr7szcrc

  • MD5

    919034c8efb9678f96b47a20fa6199f2

  • SHA1

    747070c74d0400cffeb28fbea17b64297f14cfbd

  • SHA256

    e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734

  • SHA512

    745a81c50bbfd62234edb9788c83a22e0588c5d25c00881901923a02d7096c71ef5f0cd5b73f92ad974e5174de064b0c5ea8044509039aab14b2aed83735a7c4

  • SSDEEP

    3072:naRQpzd/99wen3XgWorw8I3h8LkMvqCgQfBUnPy8L6kssU:nJdTwo30ri3h8LkMvqCgQfBUPy8L6ksP

Score
10/10
badrabbitmimikatzdefense_evasiondiscoverypersistenceransomware

Malware Config

Targets

    • Target

      CryptoWall.exe

    • Size

      132KB

    • MD5

      919034c8efb9678f96b47a20fa6199f2

    • SHA1

      747070c74d0400cffeb28fbea17b64297f14cfbd

    • SHA256

      e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734

    • SHA512

      745a81c50bbfd62234edb9788c83a22e0588c5d25c00881901923a02d7096c71ef5f0cd5b73f92ad974e5174de064b0c5ea8044509039aab14b2aed83735a7c4

    • SSDEEP

      3072:naRQpzd/99wen3XgWorw8I3h8LkMvqCgQfBUnPy8L6kssU:nJdTwo30ri3h8LkMvqCgQfBUPy8L6ksP

    Score
    10/10
    badrabbitmimikatzdefense_evasiondiscoverypersistenceransomware

    • BadRabbit

      Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

      ransomwarebadrabbit

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

      mimikatz

    • mimikatz is an open source tool to dump credentials on Windows

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Subvert Trust Controls

1
T1553

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

1
T1012

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks