Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 19:36

General

  • Target

    JaffaCakes118_dc177df1ffea1b1ae45b27e51a3ac3ff6218c1b6590ad316b5703196c2969925.exe

  • Size

    159KB

  • MD5

    7660635a50899e71c211b7d323c221ea

  • SHA1

    b4421fb519fadefa1a2ee4924b55bdce80c027a8

  • SHA256

    dc177df1ffea1b1ae45b27e51a3ac3ff6218c1b6590ad316b5703196c2969925

  • SHA512

    8065a7d7a36c63ccd4f3b70c49cc2c651425d061e541c88e2b8576c5dadca3b94fdaa025abc960b1021aa3d08da0bbcf2ef6599225cd60b5507cad236b151159

  • SSDEEP

    3072:/76t3I5NU6gM6ueKflIMykzYWzJn3iIsNb:OI5NUVdsfjRYuJ1s

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_dc177df1ffea1b1ae45b27e51a3ac3ff6218c1b6590ad316b5703196c2969925.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dc177df1ffea1b1ae45b27e51a3ac3ff6218c1b6590ad316b5703196c2969925.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wpnfrcwv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2764
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wlqrltwp.exe" C:\Windows\SysWOW64\wpnfrcwv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2652
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create wpnfrcwv binPath= "C:\Windows\SysWOW64\wpnfrcwv\wlqrltwp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dc177df1ffea1b1ae45b27e51a3ac3ff6218c1b6590ad316b5703196c2969925.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2844
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description wpnfrcwv "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2576
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start wpnfrcwv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2680
    • 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:2560
  • C:\Windows\SysWOW64\wpnfrcwv\wlqrltwp.exe
    C:\Windows\SysWOW64\wpnfrcwv\wlqrltwp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dc177df1ffea1b1ae45b27e51a3ac3ff6218c1b6590ad316b5703196c2969925.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2588
    • 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:2592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.7MB

    MD5

    206aae563db6e811ba9a3f643f607470

    SHA1

    3ba69627b27f22bbd2639eb4670bc5192cf3cbb7

    SHA256

    72c2015cdccc8699923a74c3f21444959d9f7cf75abdef2e534892913aeb6574

    SHA512

    c3fd4c1da6bd586d4d6a0df1c9587942c83cf20d6cd791695043d24c45e0a6d76ea1ee85ec806c20cb39330dd8ac9c10024f83da23e59be0c17a92dd02d6eede

  • memory/2588-14-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2592-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2592-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2592-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2592-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2592-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2592-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2688-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2688-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

    Filesize

    76KB

  • memory/2688-6-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2688-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

    Filesize

    52KB

  • memory/2688-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2688-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

    Filesize

    76KB

  • memory/2688-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

    Filesize

    52KB