Overview

overview

10

Static

static

10

$y monkey.exe

windows7-x64

10

$y monkey.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    $y monkey.exe

  • Size

    5.5MB

  • Sample

    250216-e73qbasrdy

  • MD5

    be716163be9975a407155df9003080de

  • SHA1

    9bf9f4f1822acbe01deab51b62395cbd11f4be0d

  • SHA256

    d1686f28ffddfb533160ec00c50f02155ede7c13688754a042e733612b769465

  • SHA512

    de6865503fa9004724e5c8f0498d3b167e225ab360bcd496670d2dda489066be49e455d1c482749d708e5e2e6b7d6de181866c487330a71f95f1419f8f4b46f4

  • SSDEEP

    49152:rvQP1MmB0+KWntlHv6bMd+aBwuDMCKgumT2f:

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      $y monkey.exe

    • Size

      5.5MB

    • MD5

      be716163be9975a407155df9003080de

    • SHA1

      9bf9f4f1822acbe01deab51b62395cbd11f4be0d

    • SHA256

      d1686f28ffddfb533160ec00c50f02155ede7c13688754a042e733612b769465

    • SHA512

      de6865503fa9004724e5c8f0498d3b167e225ab360bcd496670d2dda489066be49e455d1c482749d708e5e2e6b7d6de181866c487330a71f95f1419f8f4b46f4

    • SSDEEP

      49152:rvQP1MmB0+KWntlHv6bMd+aBwuDMCKgumT2f:

    Score
    10/10
    chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

    • 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

    • Disables Task Manager via registry modification

      defense_evasion

    • Downloads MZ/PE file

    • 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)

    • 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

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

Direct Volume Access

1
T1006

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

2
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