Analysis

  • max time kernel
    145s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 21:16

General

  • Target

    JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe

  • Size

    262KB

  • MD5

    741c885dfd2fc7e1f7414e1dc86bc4f6

  • SHA1

    ec2c42d54aea062cc145b5830d6544f24c4f941d

  • SHA256

    d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e

  • SHA512

    46949d434dbb5867c79a5cfd89d358d6a633f30c7a0cbce286711b2092784165771589b05e31cb0b9ece65dca86470692eeb0699e7381678b48984098640413e

  • SSDEEP

    6144:hvkKxGgD4AD+s72hPJg6C8Z+LPqhSE6t1OCGwUXB4RZucX:hMAfD4ADv72hOeZ+LP06nYRK

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.

  • 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_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lqnbjwib\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2568
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwwwlcia.exe" C:\Windows\SysWOW64\lqnbjwib\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2376
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create lqnbjwib binPath= "C:\Windows\SysWOW64\lqnbjwib\gwwwlcia.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.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 lqnbjwib "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2512
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start lqnbjwib
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2892
    • 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:2760
  • C:\Windows\SysWOW64\lqnbjwib\gwwwlcia.exe
    C:\Windows\SysWOW64\lqnbjwib\gwwwlcia.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d0a7e9269475d79293aa5a2c07f47ae586d636ba791943b0fc7d0a8a57e8895e.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2520
    • 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:3008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.4MB

    MD5

    e607a39ce7e1bbc7a071a333e54fe9eb

    SHA1

    d0784517ac930407e3fa61a388cb9172cc561078

    SHA256

    7aa0b07a88f5128de78ad352306ffd794ecb7cbf9bd46f3e485f490e01846ecc

    SHA512

    dbb3e233a61af299a431636ca66a4cf6fcce4ae8c775182c098bed1ed1c6a0a394e73aeb8911073c2106a9bbf16ce16fb73dc6711e85043203e7844354e78d84

  • memory/2104-8-0x0000000000400000-0x0000000000871000-memory.dmp

    Filesize

    4.4MB

  • memory/2104-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2104-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2104-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2104-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2104-1-0x0000000000A50000-0x0000000000B50000-memory.dmp

    Filesize

    1024KB

  • memory/2520-15-0x0000000000400000-0x0000000000871000-memory.dmp

    Filesize

    4.4MB

  • memory/3008-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3008-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3008-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3008-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3008-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB