Overview

overview

10

Static

static

1

URLScan

urlscan

http://github malware

windows10-2004-x64

10

Sharing

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General

  • Target
    http://github malware
  • Sample260911-kaxexstwfx
Score
10/10
badrabbitmimikatzspysheriffadwarebootkitdiscoveryexecutioninstallerpersistenceransomwarespyware

Malware Config

Targets

    • Target
      http://github malware
    Score
    10/10
    adwarebootkitdiscoveryexecutionbadrabbitmimikatzspysheriffinstallerpersistenceransomwarespyware

    • Detects SpySheriff adware

    • Family: BadRabbit

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

      ransomwarebadrabbit

    • Family: Mimikatz

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

      mimikatz

    • Family: SpySheriff

      SpySheriff is a Windows adware written in C++.

      adwarespysheriff

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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

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

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

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

2
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks