Analysis

  • max time kernel
    146s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-04-2024 21:46

General

  • Target

    f1fef622821788beb88015c369117693_JaffaCakes118.exe

  • Size

    13.1MB

  • MD5

    f1fef622821788beb88015c369117693

  • SHA1

    63b323c8ca7c73beec434ba9f30d98dc4bec9e87

  • SHA256

    94f8d13f54940706972abc5eac4ce0c559fafa2b4c9f17ce14fe2e368ee5a203

  • SHA512

    d08c4c2a533bcc40e139ec15e2edc45d9d16cdd3c9a317f545a9e7affb881c2776097c6ccde17deb303adefeb86f36eea9142713012bca2ec2c2dc6219b37aaa

  • SSDEEP

    98304:12UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUk:1

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) 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\f1fef622821788beb88015c369117693_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f1fef622821788beb88015c369117693_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rbmuyczf\
      2⤵
        PID:1988
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\baminxhu.exe" C:\Windows\SysWOW64\rbmuyczf\
        2⤵
          PID:2620
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create rbmuyczf binPath= "C:\Windows\SysWOW64\rbmuyczf\baminxhu.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1fef622821788beb88015c369117693_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2896
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description rbmuyczf "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2528
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start rbmuyczf
          2⤵
          • Launches sc.exe
          PID:2828
        • 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:2548
      • C:\Windows\SysWOW64\rbmuyczf\baminxhu.exe
        C:\Windows\SysWOW64\rbmuyczf\baminxhu.exe /d"C:\Users\Admin\AppData\Local\Temp\f1fef622821788beb88015c369117693_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2468
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:3052

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        11.1MB

        MD5

        6012175c55ad0f4387fa16915b346de4

        SHA1

        e6292c2b01f71b2082e7ef57fad79ab28a42df3a

        SHA256

        826945d8396b62b3e20926b50dc5f2931bdf8cda1fca6e75f56f954de61873ad

        SHA512

        c10db0199beeb88377cd112d674198a1bcb7b071903e90b3ba56b15e470ae5680ee634f9942c1444f116aee351f7c4369a883631dac0c2bae275fe69ee96abee

      • memory/2468-11-0x0000000000400000-0x0000000000474000-memory.dmp

        Filesize

        464KB

      • memory/2468-10-0x0000000000600000-0x0000000000700000-memory.dmp

        Filesize

        1024KB

      • memory/2468-16-0x0000000000400000-0x0000000000474000-memory.dmp

        Filesize

        464KB

      • memory/3036-6-0x0000000000400000-0x0000000000474000-memory.dmp

        Filesize

        464KB

      • memory/3036-7-0x0000000000220000-0x0000000000233000-memory.dmp

        Filesize

        76KB

      • memory/3036-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

        Filesize

        1024KB

      • memory/3036-3-0x0000000000400000-0x0000000000474000-memory.dmp

        Filesize

        464KB

      • memory/3036-2-0x0000000000220000-0x0000000000233000-memory.dmp

        Filesize

        76KB

      • memory/3052-15-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/3052-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/3052-20-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/3052-19-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/3052-12-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/3052-21-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/3052-22-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB