Overview

overview

10

Static

static

10

2024-05-10...ry.exe

windows7-x64

10

2024-05-10...ry.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry

  • Size

    27KB

  • Sample

    240510-a48pyaca65

  • MD5

    a87448407f580aca26856668b1421ca3

  • SHA1

    ea453ed748d7b59f27e6ccbe7a3c47982b8d831a

  • SHA256

    018699d7f48805c5eec9236d386c71883a3bb78cc29eec6a354784547672c267

  • SHA512

    9e0e24f0aef6aaf7a13cbb646084484f7eaf80f83eb2390e3764cd28982ec5d4148291e14c617f6fe38fe2eb5f8dbae3a45770a7d0919860d09c582e02743233

  • SSDEEP

    384:QtWZPzzxAm1vqD8Sks4grPiEDNBYfpQlQ/xsV7LlJqGNl8Oy5o91oc882vy:l7zxAmu8Sn4LEZVqDho9aP826

Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      2024-05-10_a87448407f580aca26856668b1421ca3_destroyer_wannacry

    • Size

      27KB

    • MD5

      a87448407f580aca26856668b1421ca3

    • SHA1

      ea453ed748d7b59f27e6ccbe7a3c47982b8d831a

    • SHA256

      018699d7f48805c5eec9236d386c71883a3bb78cc29eec6a354784547672c267

    • SHA512

      9e0e24f0aef6aaf7a13cbb646084484f7eaf80f83eb2390e3764cd28982ec5d4148291e14c617f6fe38fe2eb5f8dbae3a45770a7d0919860d09c582e02743233

    • SSDEEP

      384:QtWZPzzxAm1vqD8Sks4grPiEDNBYfpQlQ/xsV7LlJqGNl8Oy5o91oc882vy:l7zxAmu8Sn4LEZVqDho9aP826

    Score
    10/10
    chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Detects command variations typically used by ransomware

    • Detects executables containing many references to VEEAM. Observed in ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (170) 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

    • Disables Task Manager via registry modification

      evasion

    • 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

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Command and Scripting Interpreter

1
T1059

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

4
T1490

Resource Development

Reconnaissance

Tasks