Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2023 15:10

General

  • Target

    28e82f28d0b9eb6a53d22983e21a9505ada925ebb61382fabebd76b8c4acff7c.exe

  • Size

    5.4MB

  • MD5

    c95c81ca4e6b8153b458d29186e696bc

  • SHA1

    f97f8f78abb205dda329d89143aae34ba04d13df

  • SHA256

    28e82f28d0b9eb6a53d22983e21a9505ada925ebb61382fabebd76b8c4acff7c

  • SHA512

    b16b34d9865286bad27128bc9cff81ab76c438c891d208015d7f957067a7e5dce228c2cccb9c15fb587f60c30dcda98684b5f7b011ba19793849323a239b2ae5

  • SSDEEP

    49152:lQg2p4oH77z/vVYyuI2LxaafnQqrfHdYmGD2u24ccQ9B1AzA7NUkZ+no6pzUiFR+:9oRG2kZ+nxxEGBRHYFzupjUqvbdwj

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: Marketing data Accounting Confidentional 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, which you can request from the contacts below. 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 me: [email protected] or [email protected] Additional ways to communicate in tox chat tox id: A2DCDE8AAC5AB15F552621CF24A44A708EDFD0C89E22AE77087FA1E2F4FA057ABDD292BA6259 =========================================================== Customer service TOX ID: 0FF26770BFAEAD95194506E6970CC1C395B04159038D785DE316F05CE6DE67324C6038727A58 Only emergency! Use if support is not responding

Signatures

  • Detecting the common Go functions and variables names used by Snatch ransomware 30 IoCs
  • Snatch Ransomware

    Ransomware family generally distributed through RDP bruteforce attacks.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (7791) 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\28e82f28d0b9eb6a53d22983e21a9505ada925ebb61382fabebd76b8c4acff7c.exe
    "C:\Users\Admin\AppData\Local\Temp\28e82f28d0b9eb6a53d22983e21a9505ada925ebb61382fabebd76b8c4acff7c.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2988
    • C:\Windows\system32\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\urwyvn.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Windows\system32\sc.exe
        SC QUERY
        3⤵
        • Launches sc.exe
        PID:1832
      • C:\Windows\system32\findstr.exe
        FINDSTR SERVICE_NAME
        3⤵
          PID:2616
      • C:\Windows\system32\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\jqkouaveclgtlxygmh.bat
        2⤵
          PID:2828
        • C:\Windows\system32\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\gwgfyuvyd.bat
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:688
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2068
        • C:\Windows\system32\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\wfocbqvsedi.bat
          2⤵
            PID:2324
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:952

        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

          51c08d5554f9f1f08ae6d6459418f5cf

          SHA1

          5f3b81daf238348c3d85c5558aa2d44ae1925328

          SHA256

          032b6e54166e5621813dea997d5186db8762985a714601f19fa6ef8fdd7370a2

          SHA512

          6300cf927c70e6757028b489cad2eba0d2a9a0de2e09ce367d584491a9a11a374bc26c630620ee409ebc39a3b6ad81f23021001763a10de810cc3d95fd6e3238

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

          Filesize

          47B

          MD5

          2202e846ba05d7f0bb20adbc5249c359

          SHA1

          4115d2d15614503456aea14db61d71a756cc7b8c

          SHA256

          0965cb8ee38adedd9ba06bdad9220a35890c2df0e4c78d0559cd6da653bf740f

          SHA512

          cd6ce6d89a8e5f75724405bc2694b706819c3c554b042075d5eb47fdb75653235160ac8a85e7425a49d98f25b3886faaaec5599bcf66d20bf6115dc3af4ba9c7

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

          Filesize

          47B

          MD5

          2202e846ba05d7f0bb20adbc5249c359

          SHA1

          4115d2d15614503456aea14db61d71a756cc7b8c

          SHA256

          0965cb8ee38adedd9ba06bdad9220a35890c2df0e4c78d0559cd6da653bf740f

          SHA512

          cd6ce6d89a8e5f75724405bc2694b706819c3c554b042075d5eb47fdb75653235160ac8a85e7425a49d98f25b3886faaaec5599bcf66d20bf6115dc3af4ba9c7

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

          Filesize

          43B

          MD5

          55310bb774fff38cca265dbc70ad6705

          SHA1

          cb8d76e9fd38a0b253056e5f204dab5441fe932b

          SHA256

          1fbdb97893d09d59575c3ef95df3c929fe6b6ddf1b273283e4efadf94cdc802d

          SHA512

          40e5a5e8454ca3eaac36d732550e2c5d869a235e3bbc4d31c4afa038fe4e06f782fa0885e876ad8119be766477fdcc12c1d5d04d53cf6b324e366b5351fc7cd4

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

          Filesize

          43B

          MD5

          55310bb774fff38cca265dbc70ad6705

          SHA1

          cb8d76e9fd38a0b253056e5f204dab5441fe932b

          SHA256

          1fbdb97893d09d59575c3ef95df3c929fe6b6ddf1b273283e4efadf94cdc802d

          SHA512

          40e5a5e8454ca3eaac36d732550e2c5d869a235e3bbc4d31c4afa038fe4e06f782fa0885e876ad8119be766477fdcc12c1d5d04d53cf6b324e366b5351fc7cd4

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

          Filesize

          43B

          MD5

          3b854ac9791ad8977b46f8b347eca1de

          SHA1

          6d0eb57be34e059a7275e227928d52400200dc72

          SHA256

          4dd7521f4d8351fed8275553a0fa4713f65872a25011f4853713f6915abbbf09

          SHA512

          24853c988df7274e10119cdbbc8816afaa20da661ac03286f9b47660126be8bf6eef40f40261c79b205308647ef42c87d1d840280fa12f7179b3eefef5e75030

        • memory/2988-762-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-763-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-16-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-34-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-15-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-667-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-668-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-671-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-691-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-742-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-743-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-750-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-0-0x00000000003D0000-0x00000000003D1000-memory.dmp

          Filesize

          4KB

        • memory/2988-757-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-766-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-24-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-785-0x0000000000400000-0x000000000097B000-memory.dmp

          Filesize

          5.5MB

        • memory/2988-787-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-786-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-788-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-872-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-964-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-972-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-1022-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-1035-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-1056-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-1059-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-2112-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-2816-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-14-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-1-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB

        • memory/2988-16843-0x00000000027C0000-0x0000000002CA0000-memory.dmp

          Filesize

          4.9MB