Overview

overview

10

Static

static

3

Flash Player.exe

windows7-x64

10

Flash Player.exe

windows10-1703-x64

Flash Player.exe

windows10-2004-x64

Flash Player.exe

windows11-21h2-x64

Sharing

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General

  • Target

    Flash Player.exe

  • Size

    534KB

  • Sample

    240408-1tbkkagc6v

  • MD5

    670c5e520902ccad978f4171dab178f4

  • SHA1

    09d08afadf92f6d7303ed406f7da32ddd708090a

  • SHA256

    d9f889aecab50e4037018337cbbe4cc3c3b0f3647dc3e97de909d3aaa0c47097

  • SHA512

    ec01f7aae8a909435823309748179408fe8b09288c4f8ba936a1c2b24ba8c2ee81dc5b9903c8401995855ba320daf79c9f755509560ded9cc697eb777f150931

  • SSDEEP

    12288:rdJX8v+mtT+AAAAAAAAAAAAAAAXAbAAAAAAAAAAAAAAAAAAAAAbAAAgAxAAAAAAk:rXHmtT

Score
10/10
chaosevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      Flash Player.exe

    • Size

      534KB

    • MD5

      670c5e520902ccad978f4171dab178f4

    • SHA1

      09d08afadf92f6d7303ed406f7da32ddd708090a

    • SHA256

      d9f889aecab50e4037018337cbbe4cc3c3b0f3647dc3e97de909d3aaa0c47097

    • SHA512

      ec01f7aae8a909435823309748179408fe8b09288c4f8ba936a1c2b24ba8c2ee81dc5b9903c8401995855ba320daf79c9f755509560ded9cc697eb777f150931

    • SSDEEP

      12288:rdJX8v+mtT+AAAAAAAAAAAAAAAXAbAAAAAAAAAAAAAAAAAAAAAbAAAgAxAAAAAAk:rXHmtT

    Score
    10/10
    chaosevasionpersistenceransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (186) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Checks computer location settings

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

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

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

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks