Analysis

  • max time kernel
    143s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 04:44

General

  • Target

    93a587a1a3f231c7abb57573f000c01b_JaffaCakes118.exe

  • Size

    142KB

  • MD5

    93a587a1a3f231c7abb57573f000c01b

  • SHA1

    73924fb2fd9587e0fea4c0577e729a647009bd2e

  • SHA256

    ade92047b5c57eca5587d05b35bb98f36a5296fd845201cc4b3d3b284039a82c

  • SHA512

    8bed72bcad6d4c1c20900144f7e329432df514ad4425dc8afd90c7d578b970f4b57ab7c18c8160f03530d9acf81cdc6dddb3439ad057b05563ee2fed9bc661a3

  • SSDEEP

    3072:EO8/FLfgx6rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b3U:Q9LzwFLnKP46uC

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\93a587a1a3f231c7abb57573f000c01b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\93a587a1a3f231c7abb57573f000c01b_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zzwcenmr\
      2⤵
        PID:2688
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\raqkjirh.exe" C:\Windows\SysWOW64\zzwcenmr\
        2⤵
          PID:1984
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create zzwcenmr binPath= "C:\Windows\SysWOW64\zzwcenmr\raqkjirh.exe /d\"C:\Users\Admin\AppData\Local\Temp\93a587a1a3f231c7abb57573f000c01b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2756
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description zzwcenmr "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2624
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start zzwcenmr
          2⤵
          • Launches sc.exe
          PID:3032
        • 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:2708
      • C:\Windows\SysWOW64\zzwcenmr\raqkjirh.exe
        C:\Windows\SysWOW64\zzwcenmr\raqkjirh.exe /d"C:\Users\Admin\AppData\Local\Temp\93a587a1a3f231c7abb57573f000c01b_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2792
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2612

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        10.9MB

        MD5

        ef4ced748a086576d39eac25a04c88f3

        SHA1

        24ab8cd6d993a14db9b1512eee3b3cfa2aff7062

        SHA256

        6b2622bfe26068df31ae8d1bec9be895b23866ba9ccc742c081f636e8f0fe7ec

        SHA512

        f4329c10bb3ecb319c7039430a92e6d3a87f882c295ea74fe6fcf2a74db4e1ed097f29ade3f85dc4d4ba6e91f1fe2d3371818f26ef7171eb0c501ac11b755a42

      • memory/1960-0-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/1960-2-0x0000000000260000-0x0000000000261000-memory.dmp

        Filesize

        4KB

      • memory/1960-1-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/1960-6-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/2612-8-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2612-13-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2612-11-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2612-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2612-15-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2792-7-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/2792-14-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB