Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 02:26

General

  • Target

    JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe

  • Size

    319KB

  • MD5

    12ba89f5ac89a6addcd1f15b1c16af05

  • SHA1

    a8e8095cb2e1fe8333e86c6315703c56c76f5600

  • SHA256

    8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30

  • SHA512

    4c950848fc6af3f2854da5856717c7f150222378547962f91e9a61c6c7fc91eecae9bb12c53b36581fc99fb15edc10add4d205ec367c4a2e6a26bee2d1f8d4d4

  • SSDEEP

    3072:Uxyir0spfxtTM/B0OgS7NHfzlngAq0zSRytHb6GG+OX9qqyMg3VkPyiRXQi5bFs2:O1tSTgS7xLBTbzyytH22OtZyZ3ViRXc

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_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fmugbgbe\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xgpxldlu.exe" C:\Windows\SysWOW64\fmugbgbe\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2572
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create fmugbgbe binPath= "C:\Windows\SysWOW64\fmugbgbe\xgpxldlu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1628
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description fmugbgbe "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2400
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start fmugbgbe
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2768
    • 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:2948
  • C:\Windows\SysWOW64\fmugbgbe\xgpxldlu.exe
    C:\Windows\SysWOW64\fmugbgbe\xgpxldlu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ccc2337fc52470557a28e597122bfd6b4216f86a478ab5300ecc09432a17d30.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2904
    • 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:2464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.8MB

    MD5

    59c11fcd52f40e3fa2196e23fa308618

    SHA1

    995172619909a2d029a43f5bb109629778382101

    SHA256

    2a5dc4c18f0dfefdb54548d940051815ca1aaf2e1aa2beab179f1cdc1c7c16d0

    SHA512

    1ae396b3289d7e73b2509a3aac2a82c25c265a454cf7e574e62669f8051c5b8bc0068a35ff32580c497126b5ef1fbd544d2d1626c998556d321ece13a77c5941

  • memory/2292-7-0x0000000000400000-0x0000000002B48000-memory.dmp

    Filesize

    39.3MB

  • memory/2292-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2292-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2292-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2292-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2292-1-0x0000000002C70000-0x0000000002D70000-memory.dmp

    Filesize

    1024KB

  • memory/2464-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2464-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2464-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2464-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2464-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2904-17-0x0000000000400000-0x0000000002B48000-memory.dmp

    Filesize

    39.3MB