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
    29-12-2024 03:16

General

  • Target

    JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe

  • Size

    296KB

  • MD5

    bf7e2dcfd3c2efb008ef640d19b9b4f0

  • SHA1

    41cc58c97a3d8d0d6f831852446e6c75c3799444

  • SHA256

    a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7

  • SHA512

    bd4df049b00e62fa4b9dcdaa39d3217ad5c44becc80bb689c89fa4ed49d7a4f1270038b6e3b6719456be976e0dbf8eafaa739a20cd1e2fb4a4b7e9452c017fca

  • SSDEEP

    6144:6GZs4mCh2VtDSlgR7j1SaSXuZet0yy80uleoJTSjlZA8:lrhh2V9R75SaSXuZet0yy80uleFjlZ

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_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\knbqxsxy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\egaplhdu.exe" C:\Windows\SysWOW64\knbqxsxy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2056
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create knbqxsxy binPath= "C:\Windows\SysWOW64\knbqxsxy\egaplhdu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1912
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description knbqxsxy "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2688
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start knbqxsxy
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2804
    • 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:2720
  • C:\Windows\SysWOW64\knbqxsxy\egaplhdu.exe
    C:\Windows\SysWOW64\knbqxsxy\egaplhdu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a68572308ca7ad62169da59713041f697b10fdd7e9ecefbc137195bed35c38c7.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2788
    • 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:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.8MB

    MD5

    4e0989b4c131961c98f69f8c69009210

    SHA1

    dc9c7e4d7432e4ee631bc5d636e7e1ace26171b3

    SHA256

    920909469ec35a57bb36870f7fc55193d582f6f605e9e03fc8161b02922b63d1

    SHA512

    9c8a8b380a260fdf9faa21e9d2cfd6806b9d47362e0ad5ae60c88531c489d254abe1bbb05abffef33de58648db24655ed678087125e4b96fc8e38984e7ad4cb8

  • memory/2148-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2148-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2148-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2148-7-0x0000000000400000-0x0000000001C00000-memory.dmp

    Filesize

    24.0MB

  • memory/2148-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2148-1-0x0000000001C90000-0x0000000001D90000-memory.dmp

    Filesize

    1024KB

  • memory/2780-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2780-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2780-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2780-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2780-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2788-17-0x0000000000400000-0x0000000001C00000-memory.dmp

    Filesize

    24.0MB