Overview

overview

10

Static

static

10

2024-08-07...ry.exe

windows7-x64

10

2024-08-07...ry.exe

windows10-2004-x64

10

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General

  • Target

    2024-08-07_9b838a440786b24df80da0637dff3ba0_wannacry

  • Size

    279KB

  • Sample

    240807-k2n8mawdnr

  • MD5

    9b838a440786b24df80da0637dff3ba0

  • SHA1

    23ccd406239bdd950639cdd2a4382c602fa55aeb

  • SHA256

    6783ca1fa4ed35e2a48464fbe3c6e9c09c7165e6d3802c8cc395889e4726c389

  • SHA512

    ed8f0013bdd3cb09478bc07ad29827d556578168a6fffd1d0b23005e9fe29ba1364496bf3236e056fb8f623851165ee3945a8675b735527a2c7600599457639b

  • SSDEEP

    6144:br9OIyJ7/+WZT1kRnSeXSX9MNzxiMwP2Oswd:fyJ7/+Wd1kRnFX4mNzxyeOswd

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Targets

    • Target

      2024-08-07_9b838a440786b24df80da0637dff3ba0_wannacry

    • Size

      279KB

    • MD5

      9b838a440786b24df80da0637dff3ba0

    • SHA1

      23ccd406239bdd950639cdd2a4382c602fa55aeb

    • SHA256

      6783ca1fa4ed35e2a48464fbe3c6e9c09c7165e6d3802c8cc395889e4726c389

    • SHA512

      ed8f0013bdd3cb09478bc07ad29827d556578168a6fffd1d0b23005e9fe29ba1364496bf3236e056fb8f623851165ee3945a8675b735527a2c7600599457639b

    • SSDEEP

      6144:br9OIyJ7/+WZT1kRnSeXSX9MNzxiMwP2Oswd:fyJ7/+Wd1kRnFX4mNzxyeOswd

    Score
    10/10
    chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

    • 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

    • 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