Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    18-08-2024 09:52

General

  • Target

    a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe

  • Size

    11.6MB

  • MD5

    a6502d7e3a37ab4678e7146020cf7c12

  • SHA1

    798ba72a4fd5ccf2994bb7824afeed719a1dd1f7

  • SHA256

    150e8e8c9dd4a66d7ee2fbb001f946d6c1f6675bfacc324e9aaf3c1b8e65c662

  • SHA512

    65b224a8c6669a7dab9b46f3892efd104f018a091e9a90336c45b0b3f51fc6924017a594c022a24c7dcbea2ffc9cbd00f393e92abeb2dd8ab3f08e86d5d4cbd0

  • SSDEEP

    196608:RrhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhB:hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhH

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • 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\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ngqmmung\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\frysxdqy.exe" C:\Windows\SysWOW64\ngqmmung\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3052
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ngqmmung binPath= "C:\Windows\SysWOW64\ngqmmung\frysxdqy.exe /d\"C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1924
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ngqmmung "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2844
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ngqmmung
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2684
    • 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:2808
  • C:\Windows\SysWOW64\ngqmmung\frysxdqy.exe
    C:\Windows\SysWOW64\ngqmmung\frysxdqy.exe /d"C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2860
    • 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:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.2MB

    MD5

    6f773cdfd50f8b7045595da834cd2987

    SHA1

    3cea964a8e7a7bf7139d8558679b3f41321bad39

    SHA256

    cf8eb11820e923633c0add02fbc12d8b30ae6c830320c91633298d451fe81f47

    SHA512

    42b30c0280efa3da46189989518c8b5c1d0893cda8aa6e93be2a21d3aba78cecf883fd9a2deed80ffef5181c5ce510fa4cd5cab941b360ccf711f85c27fc8e9d

  • memory/2360-8-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2360-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2360-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

    Filesize

    1024KB

  • memory/2360-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2360-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2360-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2664-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2664-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2664-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2664-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2664-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2860-16-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB