Overview

overview

10

Static

static

10

aggresive ...re.exe

windows7-x64

10

aggresive ...re.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    aggresive ransomware.exe

  • Size

    274KB

  • Sample

    250210-2dn2ds1mfw

  • MD5

    a1312968ec68e2fd87b0a4652dba511a

  • SHA1

    153e3ae7cc6d8d38ca8d1ef805b51f90dcdc53e1

  • SHA256

    773b5fc4a8f79c7d1fdc9e2c79cf92f67257292da3ab4c6f5551f3308fa84fa0

  • SHA512

    b65191bf7b8e6aa165ed9c37189fd5b13c3f6a5803b01de0329ea8898078bcb8a1d5cd821a8f60951ba18bfd87a2f380867c1a8b1b1ec89129239b7057f2d623

  • SSDEEP

    6144:gr9i0ME2RQVQW4cGl8yK7dJ+/UIPzHgv26UT8:e92RQVQW4cGl8y2T+/BPzAv26UT8

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactransomwarespywarestealer

Malware Config

Targets

    • Target

      aggresive ransomware.exe

    • Size

      274KB

    • MD5

      a1312968ec68e2fd87b0a4652dba511a

    • SHA1

      153e3ae7cc6d8d38ca8d1ef805b51f90dcdc53e1

    • SHA256

      773b5fc4a8f79c7d1fdc9e2c79cf92f67257292da3ab4c6f5551f3308fa84fa0

    • SHA512

      b65191bf7b8e6aa165ed9c37189fd5b13c3f6a5803b01de0329ea8898078bcb8a1d5cd821a8f60951ba18bfd87a2f380867c1a8b1b1ec89129239b7057f2d623

    • SSDEEP

      6144:gr9i0ME2RQVQW4cGl8yK7dJ+/UIPzHgv26UT8:e92RQVQW4cGl8y2T+/BPzAv26UT8

    Score
    10/10
    chaosdefense_evasionevasionexecutionimpactransomwarespywarestealerdiscovery

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Chaos family

      chaos

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks