Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    03-07-2024 12:01

General

  • Target

    2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe

  • Size

    98KB

  • MD5

    2253c8da99eb1c32dae9568bb749a13f

  • SHA1

    c073f6de200f85d652e6bd2eb8d58bdd94ccdc8d

  • SHA256

    a425dd275e1b06734e737093123eae3a7d59a1e8449e789cd2d5c928640bcaa7

  • SHA512

    27e3973171ee5ff055add2009825adc68246c08db7b162de6473d8bac9cd2d3fd0b3a7493cc080580bad6fa12650db026e476d1e76a5ee9680265f44d885107d

  • SSDEEP

    1536:rvcnFivCOLJVj7hH+sONVPVAtXghxNKOXGlT1EZ1o8g4VrGvrkyKSPGwJn+fj0BB:rUsJHO9SXwklT1Q1o8gMrSkyrO02K

Malware Config

Extracted

Family

tofsee

C2

64.20.54.234

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:752
      • C:\Users\Admin\fkgiwrm.exe
        "C:\Users\Admin\fkgiwrm.exe" /r
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2676
        • C:\Users\Admin\fkgiwrm.exe
          "C:\Users\Admin\fkgiwrm.exe" /r
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2616
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe
            5⤵
              PID:2736
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\2647.bat" "
          3⤵
          • Deletes itself
          PID:2224

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\2647.bat

      Filesize

      117B

      MD5

      31241121304eb0a316d4bee94941747b

      SHA1

      104b63fa808538dd99b93e34d0db43f79510783d

      SHA256

      e3e85a53c7fb0958ca30422898cdad65603c1cc4b26c1f077950c2a5b7521d54

      SHA512

      a7341bd8c745372072b7eda8d5ba15b1f16e7d5ea0665d104643b466438d17fd99e15747e5ec9f74296b30c634e8ab2c45779cd4b10b3c44f49a862258e74793

    • C:\Users\Admin\fkgiwrm.exe

      Filesize

      98KB

      MD5

      2253c8da99eb1c32dae9568bb749a13f

      SHA1

      c073f6de200f85d652e6bd2eb8d58bdd94ccdc8d

      SHA256

      a425dd275e1b06734e737093123eae3a7d59a1e8449e789cd2d5c928640bcaa7

      SHA512

      27e3973171ee5ff055add2009825adc68246c08db7b162de6473d8bac9cd2d3fd0b3a7493cc080580bad6fa12650db026e476d1e76a5ee9680265f44d885107d

    • memory/752-4-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/752-44-0x0000000000400000-0x000000000041E000-memory.dmp

      Filesize

      120KB

    • memory/752-0-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/752-12-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/752-10-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/752-6-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/752-8-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/752-45-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/2616-23-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/2616-42-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/2736-48-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2736-49-0x0000000000080000-0x0000000000090000-memory.dmp

      Filesize

      64KB

    • memory/2736-52-0x0000000000080000-0x0000000000090000-memory.dmp

      Filesize

      64KB

    • memory/2736-54-0x0000000000080000-0x0000000000090000-memory.dmp

      Filesize

      64KB

    • memory/2736-57-0x0000000000080000-0x0000000000090000-memory.dmp

      Filesize

      64KB

    • memory/2736-59-0x0000000000080000-0x0000000000090000-memory.dmp

      Filesize

      64KB