Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 21:00

General

  • Target

    JaffaCakes118_72f0323499a3831dcbc7d9d558143b12a44beadcd7d61ecc37512e31fd357d2c.exe

  • Size

    283KB

  • MD5

    64561281dec56eb90a6d09c136fe247c

  • SHA1

    90abc8a42cc24d16c9b3d5f7b768b5be8df9cb3e

  • SHA256

    72f0323499a3831dcbc7d9d558143b12a44beadcd7d61ecc37512e31fd357d2c

  • SHA512

    4a9dec99567ea12dbf089844343911920a7a1a55337f9b2e4c5ce8d134523dfc3d232f1030a0121724414e2aafb49f4df13377c9a6cf29fbfca8f6eb0694ed4c

  • SSDEEP

    3072:k0Pk78X7od3gwQTyrZ6bA5VKtxjm/z0o3/ycngVYseLzSOgxw5aGCTZGa9yXgGgy:D878A3QBbA3Exw5o6yOH9k79kgGpeU

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.

  • Tofsee family
  • 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\JaffaCakes118_72f0323499a3831dcbc7d9d558143b12a44beadcd7d61ecc37512e31fd357d2c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f0323499a3831dcbc7d9d558143b12a44beadcd7d61ecc37512e31fd357d2c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jgfttafe\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2792
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qkgmxhzf.exe" C:\Windows\SysWOW64\jgfttafe\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2900
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create jgfttafe binPath= "C:\Windows\SysWOW64\jgfttafe\qkgmxhzf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f0323499a3831dcbc7d9d558143b12a44beadcd7d61ecc37512e31fd357d2c.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2828
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description jgfttafe "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2840
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start jgfttafe
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2668
    • 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:2744
  • C:\Windows\SysWOW64\jgfttafe\qkgmxhzf.exe
    C:\Windows\SysWOW64\jgfttafe\qkgmxhzf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f0323499a3831dcbc7d9d558143b12a44beadcd7d61ecc37512e31fd357d2c.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2732
    • 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:3020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.8MB

    MD5

    6ae39eaf1b0659733f0df87172b45ac7

    SHA1

    7ad10ad8b141be9eb023e5e14ee819324aea47bf

    SHA256

    6c1e4fcb58973409fd8216db809f491d41d4749982f96740bfb4d58cb90faa19

    SHA512

    98280d30f83ef944118e40c7e0847da113f654a48bafbd3194ec1cd94b3b4ece917931b9b866aa9b3a20d7a7a3fd40a5a75407de427faccdbc8d551ee4671dc1

  • memory/2732-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

    Filesize

    39.6MB

  • memory/2888-6-0x0000000000400000-0x0000000002B8F000-memory.dmp

    Filesize

    39.6MB

  • memory/2888-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2888-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2888-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2888-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

    Filesize

    1024KB

  • memory/2888-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/3020-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3020-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3020-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3020-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3020-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB