Overview

overview

10

Static

static

10

2025-03-26...ry.exe

windows7-x64

10

2025-03-26...ry.exe

windows10-2004-x64

10

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General

  • Target

    2025-03-26_58cec69d3a2b85bae9b6bd4ad6a2d2c3_wannacry

  • Size

    150KB

  • Sample

    250326-f6e4as1n13

  • MD5

    58cec69d3a2b85bae9b6bd4ad6a2d2c3

  • SHA1

    04996fe1007c059bd24ccdb1205e179f28d6791b

  • SHA256

    52d96d3cd970fe4a0e747ab7a9f38d211a14038fedaa01abb21aead0887cdf64

  • SHA512

    7b4c5055a832bc352416f19a9c21c7f0ac456f6c2d0c0702b53d6797c13de8a922d0a0808eb5e6d649cde62983c56432093346050a47aadc4edf77b3c0b30752

  • SSDEEP

    3072:lM3kO/QVr9SXlvPmJ2m72jPr7ppE0TtRrC/LZrk6/QgTmOIN1:Rr9SXlkEt9RGv5IN

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Targets

    • Target

      2025-03-26_58cec69d3a2b85bae9b6bd4ad6a2d2c3_wannacry

    • Size

      150KB

    • MD5

      58cec69d3a2b85bae9b6bd4ad6a2d2c3

    • SHA1

      04996fe1007c059bd24ccdb1205e179f28d6791b

    • SHA256

      52d96d3cd970fe4a0e747ab7a9f38d211a14038fedaa01abb21aead0887cdf64

    • SHA512

      7b4c5055a832bc352416f19a9c21c7f0ac456f6c2d0c0702b53d6797c13de8a922d0a0808eb5e6d649cde62983c56432093346050a47aadc4edf77b3c0b30752

    • SSDEEP

      3072:lM3kO/QVr9SXlvPmJ2m72jPr7ppE0TtRrC/LZrk6/QgTmOIN1:Rr9SXlkEt9RGv5IN

    Score
    10/10
    chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

    • 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

Tasks