Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2024 20:53

General

  • Target

    JaffaCakes118_a0d3389c0f14bfe059cafd173cd45761fb0777d8e1057313c31a772939587f72.exe

  • Size

    187KB

  • MD5

    c153d4e45afbdee5133affb67a3acb66

  • SHA1

    35b42f301e9fc6d6eaaf5ef294f3da3e9a8aa584

  • SHA256

    a0d3389c0f14bfe059cafd173cd45761fb0777d8e1057313c31a772939587f72

  • SHA512

    1a7d3f1b97ea11589eb8669ce09e98e8f94b7d2e13bc1b35868342080dd10f288d8a116d913e50a3f1c6065833604d13778ae781aca1fd6d629b9c97ff3d11d5

  • SSDEEP

    3072:z7QkTvI0pZG/xfCcBzzNoCv+l2k80O2rMQEeUpZa9uD6Vdyhkf:g+vI0pZG/xfCANoCGAqrhUwVf

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
  • 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_a0d3389c0f14bfe059cafd173cd45761fb0777d8e1057313c31a772939587f72.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0d3389c0f14bfe059cafd173cd45761fb0777d8e1057313c31a772939587f72.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dvliwzdq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xdybktto.exe" C:\Windows\SysWOW64\dvliwzdq\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2788
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create dvliwzdq binPath= "C:\Windows\SysWOW64\dvliwzdq\xdybktto.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0d3389c0f14bfe059cafd173cd45761fb0777d8e1057313c31a772939587f72.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2780
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description dvliwzdq "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2736
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start dvliwzdq
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2604
    • 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:2568
  • C:\Windows\SysWOW64\dvliwzdq\xdybktto.exe
    C:\Windows\SysWOW64\dvliwzdq\xdybktto.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0d3389c0f14bfe059cafd173cd45761fb0777d8e1057313c31a772939587f72.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2552
    • 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:2020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.9MB

    MD5

    47875cb515633f34fa16a28588ee74d3

    SHA1

    2c01e3b7afe8d22890b18f2833fdfa43df90e480

    SHA256

    31ae95b68ad958aa123e4bf6a215b2c77b649e4ce0b34981e38af0fe260cc9f3

    SHA512

    e642801af5ee3a513406e90f37f409138a12184504cacfb8cee960845fe74243a6772998b136e70bef5c4e874d977a23a742bab698c421878b185f808e4c82cf

  • memory/2020-15-0x0000000000110000-0x0000000000125000-memory.dmp

    Filesize

    84KB

  • memory/2020-17-0x0000000000110000-0x0000000000125000-memory.dmp

    Filesize

    84KB

  • memory/2020-10-0x0000000000110000-0x0000000000125000-memory.dmp

    Filesize

    84KB

  • memory/2020-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2020-13-0x0000000000110000-0x0000000000125000-memory.dmp

    Filesize

    84KB

  • memory/2552-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2644-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2644-7-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2644-0-0x0000000000220000-0x000000000022D000-memory.dmp

    Filesize

    52KB

  • memory/2644-8-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB

  • memory/2644-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2644-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2644-1-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB