General

  • Target

    2024-06-16_39606f25a795d1f1ae8d8a154780fab4_chaos_destroyer_wannacry

  • Size

    27KB

  • Sample

    240616-x4d7naxgkr

  • MD5

    39606f25a795d1f1ae8d8a154780fab4

  • SHA1

    bfda025d280b22371f987b702e94682b1c0b7ba6

  • SHA256

    95b3dde51afe570553bd0f1ddba81a399532e33e5ac8979d64aaa9b009d071fb

  • SHA512

    6ecbac36383230b6d1891f5992adef8a3cc295ca64ba19d7221c093904a0b2174577b51e75e048b7853e95d0e5e14b9aedf0e97486b9071457009e85cb0bd61a

  • SSDEEP

    384:LtWZPzzxAm1vwePsd7lMDwXIYNl3Oy5o91s6x82vb:C7zxAmZsdweIAho92o82D

Malware Config

Extracted

Path

C:\ProgramData\Adobe\Updater6\read_it.txt

Ransom Note
Don't worry, you can return all your files! All your files like documents, photos, databases and other important are encrypted What guarantees do we give to you? You can send 3 of your encrypted files and we decrypt it for free. You must follow these steps To decrypt your files : 1) Write on our e-mail :[email protected] ( In case of no answer in 24 hours check your spam folder or write us to this e-mail: [email protected]) 2) Obtain Bitcoin (You have to pay for decryption in Bitcoins. After payment we will send you the tool that will decrypt all your files.)

Targets

    • Target

      2024-06-16_39606f25a795d1f1ae8d8a154780fab4_chaos_destroyer_wannacry

    • Size

      27KB

    • MD5

      39606f25a795d1f1ae8d8a154780fab4

    • SHA1

      bfda025d280b22371f987b702e94682b1c0b7ba6

    • SHA256

      95b3dde51afe570553bd0f1ddba81a399532e33e5ac8979d64aaa9b009d071fb

    • SHA512

      6ecbac36383230b6d1891f5992adef8a3cc295ca64ba19d7221c093904a0b2174577b51e75e048b7853e95d0e5e14b9aedf0e97486b9071457009e85cb0bd61a

    • SSDEEP

      384:LtWZPzzxAm1vwePsd7lMDwXIYNl3Oy5o91s6x82vb:C7zxAmZsdweIAho92o82D

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Detects command variations typically used by ransomware

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

    • Modifies boot configuration data using bcdedit

    • Renames multiple (175) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Disables Task Manager via registry modification

    • 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.

    • Adds Run key to start application

    • Drops desktop.ini file(s)

MITRE ATT&CK Enterprise v15

Tasks