Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2024 17:23

General

  • Target

    cd40e2ae400d9246093680878435e4c0_JaffaCakes118.exe

  • Size

    11.3MB

  • MD5

    cd40e2ae400d9246093680878435e4c0

  • SHA1

    9d8db6d204bd8d15650b48dfd8b68a464ed67c61

  • SHA256

    4bf9bf8d633e92cacd30456ef29f97945406ff53002d593fbb41ff6850e99c64

  • SHA512

    985135f88b10aaa0d0f06877cfa509f631fcf084c91e9a66461334891734c85135db029187cbb821a8e8c1de75b81263016adbfc1632dfd6e126c92225d62c77

  • SSDEEP

    196608:xrhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh:Bhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhn

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd40e2ae400d9246093680878435e4c0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cd40e2ae400d9246093680878435e4c0_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kgaawooc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2708
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\geommclb.exe" C:\Windows\SysWOW64\kgaawooc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2428
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create kgaawooc binPath= "C:\Windows\SysWOW64\kgaawooc\geommclb.exe /d\"C:\Users\Admin\AppData\Local\Temp\cd40e2ae400d9246093680878435e4c0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2620
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description kgaawooc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2628
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start kgaawooc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2596
    • 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
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:3060
  • C:\Windows\SysWOW64\kgaawooc\geommclb.exe
    C:\Windows\SysWOW64\kgaawooc\geommclb.exe /d"C:\Users\Admin\AppData\Local\Temp\cd40e2ae400d9246093680878435e4c0_JaffaCakes118.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.8MB

    MD5

    a767e30e02b18951973a55cf22763f79

    SHA1

    8f2f55ef51b9a243f989cf785f9e306e2870c8c0

    SHA256

    8c1b360a40cd8b644cbbf94c0ab63712ac49396063bfa81cd4eca1449c9f9912

    SHA512

    aeba8cd5459703f6fe676006ae6ce602b3410068322ca011c184f7aac9124e62994baea5662d4fca67365ba20af38b87d908f8a7c6ba75b1740e57c9436667a5

  • memory/916-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/916-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/916-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/916-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/916-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2656-17-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2804-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2804-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2804-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2804-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2804-8-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2804-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

    Filesize

    1024KB