Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-04-2024 22:09

General

  • Target

    f209de2b20a674e93e3296af504c17cd_JaffaCakes118.exe

  • Size

    11.7MB

  • MD5

    f209de2b20a674e93e3296af504c17cd

  • SHA1

    7226e347ec585b1cc46cbb043ded6a49f571c805

  • SHA256

    c95876b37d090034446c2d94dae77ffd8eda405ea99b333285491d67fa4fa757

  • SHA512

    1b7d954fa8a118503a7816ba394136a8055bd6d2fe6d2d650088750b4d35973227e15781e41ce044fbc151e7f833e6d7c381ab9acf48aa4e77e47c77566b6d92

  • SSDEEP

    12288:Ge/GBGOCZ7s3WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWy:EIdZ7

Malware Config

Extracted

Family

tofsee

C2

176.111.174.19

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) 1 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\f209de2b20a674e93e3296af504c17cd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f209de2b20a674e93e3296af504c17cd_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uradlljr\
      2⤵
        PID:2936
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jerwyrfa.exe" C:\Windows\SysWOW64\uradlljr\
        2⤵
          PID:2540
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create uradlljr binPath= "C:\Windows\SysWOW64\uradlljr\jerwyrfa.exe /d\"C:\Users\Admin\AppData\Local\Temp\f209de2b20a674e93e3296af504c17cd_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2820
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description uradlljr "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2808
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start uradlljr
          2⤵
          • Launches sc.exe
          PID:1572
        • 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:2468
      • C:\Windows\SysWOW64\uradlljr\jerwyrfa.exe
        C:\Windows\SysWOW64\uradlljr\jerwyrfa.exe /d"C:\Users\Admin\AppData\Local\Temp\f209de2b20a674e93e3296af504c17cd_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2460
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2376

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        12.7MB

        MD5

        4589d672e8d3595d09f82a98526d887f

        SHA1

        2c05d86368e3f8536d595ca6df5d01f2c48dbc9d

        SHA256

        284695bc7b6a01d6f501b2dc9e0768c823e0ede6054a0d98368ec5872577bfe6

        SHA512

        bce2cf88dcbf9aeff54450f496789b3cc23a24897fdb447ac3f56581b1cdee1fd123e5b129705ba494af8d82bd229aca548c39302e3045c01f5d2a3538a9375c

      • memory/2372-1-0x0000000002D90000-0x0000000002E90000-memory.dmp

        Filesize

        1024KB

      • memory/2372-2-0x0000000000020000-0x0000000000033000-memory.dmp

        Filesize

        76KB

      • memory/2372-4-0x0000000000400000-0x0000000002BF6000-memory.dmp

        Filesize

        40.0MB

      • memory/2372-6-0x0000000000400000-0x0000000002BF6000-memory.dmp

        Filesize

        40.0MB

      • memory/2372-7-0x0000000000020000-0x0000000000033000-memory.dmp

        Filesize

        76KB

      • memory/2376-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2376-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2376-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2376-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2376-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2376-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2376-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2460-10-0x0000000002D40000-0x0000000002E40000-memory.dmp

        Filesize

        1024KB

      • memory/2460-19-0x0000000000400000-0x0000000002BF6000-memory.dmp

        Filesize

        40.0MB

      • memory/2460-18-0x0000000000400000-0x0000000002BF6000-memory.dmp

        Filesize

        40.0MB