Resubmissions

18-04-2024 18:50

240418-xha8wabh29 10

01-01-2024 15:12

240101-slnwxsfeh4 10

Analysis

  • max time kernel
    1556s
  • max time network
    1562s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    18-04-2024 18:50

General

  • Target

    f682e063bc2c822fbe3083507b0717b1f8bc244149ed9acd9a78566f5a79a140.exe

  • Size

    4.5MB

  • MD5

    6dab3197c3332edd2b1d6eb9a362b407

  • SHA1

    007aed90515d81779eae9b7a4b5676f158fc8d49

  • SHA256

    f682e063bc2c822fbe3083507b0717b1f8bc244149ed9acd9a78566f5a79a140

  • SHA512

    cc47a75c1189222dc1334c6773acfa2ee561f2df1a63553374e9997696b1fdf02ce3a6389e4690db6b9b0ec3ae73663f5aa1007e63ef91df43371e77a65b1157

  • SSDEEP

    49152:p3Uc3/rb/TzvO90dL3BmAFd4A64nsfJ1e76Gn3oJymCTCCC5EigrabyP2NgIbgzI:F30MAJJ/Eg2uNT6nNbOC0DCZFOs

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\HOW TO RESTORE YOUR FILES.TXT

Ransom Note
We inform you that your network has undergone a penetration test, during which we encrypted your files and downloaded more than 250 GB of your and your customers data, including: Accounting Confidential documents Personal data Copy of some mailboxes Databases backups Important! Do not try to decrypt the files yourself or using third-party utilities. The only program that can decrypt them is our decryptor. Any other program will only damage files in such a way that it will be impossible to restore them. You can get all the necessary evidence, discuss with us possible solutions to this problem and request a decryptor by using the contacts below. Please be advised that if we don't receive a response from you within 3 days, we reserve the right to publish files to the public. Contact us: [email protected] or [email protected] =========================================================== Customer service TOX ID: 0FF26770BFAEAD95194506E6970CC1C395B04159038D785DE316F05CE6DE67324C6038727A58 Only emergency! Use if support is not responding

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (7879) files with added filename extension

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

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\f682e063bc2c822fbe3083507b0717b1f8bc244149ed9acd9a78566f5a79a140.exe
    "C:\Users\Admin\AppData\Local\Temp\f682e063bc2c822fbe3083507b0717b1f8bc244149ed9acd9a78566f5a79a140.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\system32\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\rdowda.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\system32\sc.exe
        SC QUERY
        3⤵
        • Launches sc.exe
        PID:2016
      • C:\Windows\system32\findstr.exe
        FINDSTR SERVICE_NAME
        3⤵
          PID:2364
      • C:\Windows\system32\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\kpngnhkqovrj.bat
        2⤵
          PID:2012
        • C:\Windows\system32\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\pyqiecvvuukgiuvklpf.bat
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2904
        • C:\Windows\system32\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\peidiqkegauhvdud.bat
          2⤵
            PID:2868
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1164

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\HOW TO RESTORE YOUR FILES.TXT

          Filesize

          1KB

          MD5

          b0c02a7ab1954f87783b85a4cda6ae12

          SHA1

          839f0c634532015d0543cf76e1f5f431b61da5a6

          SHA256

          2e415d23fef46d4a406f577e046df5d1dea05dd83378da203453253de2f3e6c6

          SHA512

          b53fe83cfbc92e0a887b0313df131f753cab07833f9ea66d63b37589b7d4411130c1baca6dcbe1406c4e978c33a481ff5167a1cf37b7bdfdc339bd8ec46f1047

        • C:\Users\Admin\AppData\Local\Temp\kpngnhkqovrj.bat

          Filesize

          47B

          MD5

          2202e846ba05d7f0bb20adbc5249c359

          SHA1

          4115d2d15614503456aea14db61d71a756cc7b8c

          SHA256

          0965cb8ee38adedd9ba06bdad9220a35890c2df0e4c78d0559cd6da653bf740f

          SHA512

          cd6ce6d89a8e5f75724405bc2694b706819c3c554b042075d5eb47fdb75653235160ac8a85e7425a49d98f25b3886faaaec5599bcf66d20bf6115dc3af4ba9c7

        • C:\Users\Admin\AppData\Local\Temp\peidiqkegauhvdud.bat

          Filesize

          43B

          MD5

          3b854ac9791ad8977b46f8b347eca1de

          SHA1

          6d0eb57be34e059a7275e227928d52400200dc72

          SHA256

          4dd7521f4d8351fed8275553a0fa4713f65872a25011f4853713f6915abbbf09

          SHA512

          24853c988df7274e10119cdbbc8816afaa20da661ac03286f9b47660126be8bf6eef40f40261c79b205308647ef42c87d1d840280fa12f7179b3eefef5e75030

        • C:\Users\Admin\AppData\Local\Temp\rdowda.bat

          Filesize

          43B

          MD5

          55310bb774fff38cca265dbc70ad6705

          SHA1

          cb8d76e9fd38a0b253056e5f204dab5441fe932b

          SHA256

          1fbdb97893d09d59575c3ef95df3c929fe6b6ddf1b273283e4efadf94cdc802d

          SHA512

          40e5a5e8454ca3eaac36d732550e2c5d869a235e3bbc4d31c4afa038fe4e06f782fa0885e876ad8119be766477fdcc12c1d5d04d53cf6b324e366b5351fc7cd4