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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2025, 05:39

General

  • Target

    JaffaCakes118_8f0c7ed7dee073b4d77ebc9ae3e91730.exe

  • Size

    10.0MB

  • MD5

    8f0c7ed7dee073b4d77ebc9ae3e91730

  • SHA1

    9859b88ddf30f3ad0275f1af5595cc175aa72808

  • SHA256

    a766c56d729f2d60d7420c27cc346dd2b360e2b620061ceccd86c3efaafa3d21

  • SHA512

    d55db62d314bb0f1fbfba9e33345098877c4985a1a139159422fb2fdcf70b1cbef271748fd13a2f467b3c42423c90c386ccccc0ced0e1bf63044a04bf4397cfd

  • SSDEEP

    49152:cvqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqS:c

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_8f0c7ed7dee073b4d77ebc9ae3e91730.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f0c7ed7dee073b4d77ebc9ae3e91730.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jhhwpazw\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2256
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nomwzsxi.exe" C:\Windows\SysWOW64\jhhwpazw\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1840
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create jhhwpazw binPath= "C:\Windows\SysWOW64\jhhwpazw\nomwzsxi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f0c7ed7dee073b4d77ebc9ae3e91730.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2552
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description jhhwpazw "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2808
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start jhhwpazw
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2744
    • 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:2848
  • C:\Windows\SysWOW64\jhhwpazw\nomwzsxi.exe
    C:\Windows\SysWOW64\jhhwpazw\nomwzsxi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f0c7ed7dee073b4d77ebc9ae3e91730.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2832
    • 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:2952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.9MB

    MD5

    f37460643c047707b72e36a5ec9709fd

    SHA1

    37bdeecf64d9a73b20372f57ee47cd9c78888489

    SHA256

    b13c076ff1ee0703550cb1f34cdfaf47c998537041a6962ea055b77cbb3c943f

    SHA512

    a07db4c1aabec57ad85544d504eef4f8682834ad2bfdf85d1723eb381a24cb6f25bbae82e50ce1aa451d461d67e9a638b34c975f828f4e4197d80e4fea386c26

  • memory/2832-17-0x0000000000400000-0x00000000016BC000-memory.dmp

    Filesize

    18.7MB

  • memory/2912-9-0x00000000002B0000-0x00000000002C3000-memory.dmp

    Filesize

    76KB

  • memory/2912-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2912-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2912-8-0x0000000000400000-0x00000000016BC000-memory.dmp

    Filesize

    18.7MB

  • memory/2912-2-0x00000000002B0000-0x00000000002C3000-memory.dmp

    Filesize

    76KB

  • memory/2912-1-0x0000000001740000-0x0000000001840000-memory.dmp

    Filesize

    1024KB

  • memory/2952-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2952-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2952-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2952-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2952-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB