Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 01:33

General

  • Target

    JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe

  • Size

    238KB

  • MD5

    04aad3afb392a73a20d30113627a0904

  • SHA1

    c2858ee930d3aa39e130379941a16596ee42583a

  • SHA256

    16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71

  • SHA512

    f1197d7e87109c72b74d9a993b0e83635a217bc69bafecadc21db11d67bcd81c1579f364270e3839e9ef787f8c37a300c7ac37ec0e71da1e03cc9bb2e43536e2

  • SSDEEP

    6144:hX2ED6j2X7Q9pnpY5kdQElH7ITsq7igavwVf:hX246iX7QdY5kd979

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_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.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\ytwuvqou\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2680
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qmbbgntk.exe" C:\Windows\SysWOW64\ytwuvqou\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2764
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ytwuvqou binPath= "C:\Windows\SysWOW64\ytwuvqou\qmbbgntk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2708
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ytwuvqou "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2584
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ytwuvqou
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2572
    • 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:2812
  • C:\Windows\SysWOW64\ytwuvqou\qmbbgntk.exe
    C:\Windows\SysWOW64\ytwuvqou\qmbbgntk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2688
    • 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:2016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.0MB

    MD5

    5c56293c5f900392b8aeb6a334acd998

    SHA1

    30baa8bdecf12f006f42c6ce9ed2cd5b16411126

    SHA256

    88849e355ca70929d96a6920d859f6d0e704a664020cdca9b3dae1288be2700a

    SHA512

    171f0477d258ffc59a290c0f3d6bdf19e061b179d98f899eefd4cd86c09b12d3bcca93ea4de799090251a961e991572f8e926840fd55fc129e5e3a10532acfce

  • memory/2016-13-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2016-10-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2016-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2016-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2016-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

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

    Filesize

    84KB

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

    Filesize

    76KB

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

    Filesize

    84KB

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

    Filesize

    76KB

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

    Filesize

    52KB

  • memory/2644-6-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB

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

    Filesize

    52KB

  • memory/2688-15-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB