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Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2025, 03:03

General

  • Target

    JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe

  • Size

    11.7MB

  • MD5

    874b4f072e4f7a9ef9fe5223fbe918ea

  • SHA1

    f69d63c6ac97ff3765c5bf7e85c684d9f2b9227f

  • SHA256

    bb104f4d64f9a531d76f8a32cff00750975b1897faa74a6284af22bc7df9b002

  • SHA512

    c6b4a093eba3c715d9e3e5302c58d28d49e58813725aca183188b05230198d0be0464d51a0d9017fc4426622975c8fc660e0a4a3cbd965d1ddddedae068e46f9

  • SSDEEP

    24576:6zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzT:

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_874b4f072e4f7a9ef9fe5223fbe918ea.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tezdijoo\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2452
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kenxknse.exe" C:\Windows\SysWOW64\tezdijoo\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2356
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create tezdijoo binPath= "C:\Windows\SysWOW64\tezdijoo\kenxknse.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2264
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description tezdijoo "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2704
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start tezdijoo
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2780
    • 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:2688
  • C:\Windows\SysWOW64\tezdijoo\kenxknse.exe
    C:\Windows\SysWOW64\tezdijoo\kenxknse.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2828
    • 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:2580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.6MB

    MD5

    0dfcce50ca57f43bdc3cc40c077ff9af

    SHA1

    741a649d83784cd54dff11205cb3131b5ff54055

    SHA256

    4e9d1d870bdb10fdc47f241fc78a2eb4df3403504b89d0c4c1fd6e6a94add669

    SHA512

    5944bfb446e76f312a3b62cc58fecfd429b294aba221c2cd4862fbb9e88903a430f9435c20d775dbf3738821f2981c5e32a5d4393316180fc413cfbfc61a3fc9

  • memory/1624-1-0x0000000000660000-0x0000000000760000-memory.dmp

    Filesize

    1024KB

  • memory/1624-3-0x0000000000400000-0x00000000004AA000-memory.dmp

    Filesize

    680KB

  • memory/1624-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1624-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1624-9-0x0000000000400000-0x00000000004AA000-memory.dmp

    Filesize

    680KB

  • memory/2580-11-0x00000000000E0000-0x00000000000F5000-memory.dmp

    Filesize

    84KB

  • memory/2580-14-0x00000000000E0000-0x00000000000F5000-memory.dmp

    Filesize

    84KB

  • memory/2580-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2580-17-0x00000000000E0000-0x00000000000F5000-memory.dmp

    Filesize

    84KB

  • memory/2580-18-0x00000000000E0000-0x00000000000F5000-memory.dmp

    Filesize

    84KB

  • memory/2828-15-0x0000000000400000-0x00000000004AA000-memory.dmp

    Filesize

    680KB