Analysis

  • max time kernel
    144s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    08-05-2024 23:00

General

  • Target

    271d95e58c572c43840b2821abcc4ef0_JaffaCakes118.exe

  • Size

    143KB

  • MD5

    271d95e58c572c43840b2821abcc4ef0

  • SHA1

    45b8f42821059fab7c65139875855e99bf42678d

  • SHA256

    411c12f3ffdfc457b7e96b53eb9f82170e2d065a09157c82c879c335f80afe18

  • SHA512

    2c558900cfaab4161779b80a10197c75c0f3d001ff25b31477fdec1e3457cde1fe8d9291c9a68841956101c5f2e1ece1779ca21417ad977e206e8f27301da233

  • SSDEEP

    3072:Is6ZY7v9ocPspRvaMnY7Q0qzhBpJ6E5WcWcpxOcvocjc:yyLsXaAYQb/zV

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

  • Tofsee

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

  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\271d95e58c572c43840b2821abcc4ef0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\271d95e58c572c43840b2821abcc4ef0_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wzpcczj\
      2⤵
        PID:1744
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jwmvgtga.exe" C:\Windows\SysWOW64\wzpcczj\
        2⤵
          PID:2124
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create wzpcczj binPath= "C:\Windows\SysWOW64\wzpcczj\jwmvgtga.exe /d\"C:\Users\Admin\AppData\Local\Temp\271d95e58c572c43840b2821abcc4ef0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2584
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description wzpcczj "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2636
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start wzpcczj
          2⤵
          • Launches sc.exe
          PID:2152
        • C:\Windows\SysWOW64\netsh.exe
          "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
          2⤵
          • Modifies Windows Firewall
          PID:2720
      • C:\Windows\SysWOW64\wzpcczj\jwmvgtga.exe
        C:\Windows\SysWOW64\wzpcczj\jwmvgtga.exe /d"C:\Users\Admin\AppData\Local\Temp\271d95e58c572c43840b2821abcc4ef0_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:344
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2388

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\jwmvgtga.exe

        Filesize

        12.1MB

        MD5

        c690adb39d3403b123e3e7babdea677b

        SHA1

        11fcde09d928ceaa17e503dfa48620543508ab72

        SHA256

        e56638050e5036783b9b73cc498236914caf3d754d9fc1b9e1b1875f395d78d2

        SHA512

        8e71d923b291615a4aa1f3399bb605ca47342d10c7b1732e876024138f1a6d9f160e938e6b48edea64084d7a02dd671041426901283eab54ab1d0dc8b37ddb13

      • memory/344-12-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/344-7-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/2208-0-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/2208-1-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/2208-6-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/2208-2-0x0000000000260000-0x0000000000261000-memory.dmp

        Filesize

        4KB

      • memory/2388-13-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2388-14-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2388-11-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2388-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2388-15-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2388-8-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB