Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2025 17:51

General

  • Target

    JaffaCakes118_31ce7ecd22ebd1a1df270380c9405da4.exe

  • Size

    14.7MB

  • MD5

    31ce7ecd22ebd1a1df270380c9405da4

  • SHA1

    3b00762970c7d824bc8c1654554e3c8e8511153b

  • SHA256

    bb6c607816040da1719c56e42077b18439e7644d852e8a4a35ea396d8d488cfe

  • SHA512

    70d782175e5d115f41249285aeb17c74e3b0b7ec18ab61eae971bde498ebd1cc2f95759d3a51791301444941d51030601fa2405b9bb84915b088461c5ed32cb9

  • SSDEEP

    49152:DkHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Program crash 2 IoCs
  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ce7ecd22ebd1a1df270380c9405da4.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ce7ecd22ebd1a1df270380c9405da4.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tijgheqp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4244
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejigwcla.exe" C:\Windows\SysWOW64\tijgheqp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3892
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create tijgheqp binPath= "C:\Windows\SysWOW64\tijgheqp\ejigwcla.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ce7ecd22ebd1a1df270380c9405da4.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2764
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description tijgheqp "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1056
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start tijgheqp
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:412
    • 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:1924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 1032
      2⤵
      • Program crash
      PID:3412
  • C:\Windows\SysWOW64\tijgheqp\ejigwcla.exe
    C:\Windows\SysWOW64\tijgheqp\ejigwcla.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ce7ecd22ebd1a1df270380c9405da4.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:1848
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 516
      2⤵
      • Program crash
      PID:2992
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1284 -ip 1284
    1⤵
      PID:3264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2360 -ip 2360
      1⤵
        PID:3632

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        12.1MB

        MD5

        442cd92542e4bd990f9b330646d48997

        SHA1

        72168341e49d6d440d82a76d7afbef0cbddebcf8

        SHA256

        0aafcbec23ad6178fed48b50bd3e54481e992360a4a41f5b24e4a6cd2e1a0a03

        SHA512

        5a4b41b2769976644bde2a983e89534103c51c3dcacb43995caaa0b02bef6228b7c99d83c51ef356330402c950ba58aea0785fb8c316c49f332c61203a2d4558

      • memory/1284-1-0x0000000000790000-0x0000000000890000-memory.dmp

        Filesize

        1024KB

      • memory/1284-2-0x0000000002390000-0x00000000023A3000-memory.dmp

        Filesize

        76KB

      • memory/1284-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/1284-8-0x0000000000400000-0x0000000000785000-memory.dmp

        Filesize

        3.5MB

      • memory/1284-10-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/1284-9-0x0000000002390000-0x00000000023A3000-memory.dmp

        Filesize

        76KB

      • memory/1848-12-0x0000000000120000-0x0000000000135000-memory.dmp

        Filesize

        84KB

      • memory/1848-14-0x0000000000120000-0x0000000000135000-memory.dmp

        Filesize

        84KB

      • memory/1848-15-0x0000000000120000-0x0000000000135000-memory.dmp

        Filesize

        84KB

      • memory/2360-11-0x0000000000400000-0x0000000000785000-memory.dmp

        Filesize

        3.5MB

      • memory/2360-17-0x0000000000400000-0x0000000000785000-memory.dmp

        Filesize

        3.5MB