Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 02:58

General

  • Target

    JaffaCakes118_60581f93b3f00098492db1674e3862e8d0557bce69797c68cea7cc80bca39101.exe

  • Size

    287KB

  • MD5

    17bb61202a522c4c39b174e82418be79

  • SHA1

    34b87524492f670c91e7c3a19ae50a13b6a4cf0c

  • SHA256

    60581f93b3f00098492db1674e3862e8d0557bce69797c68cea7cc80bca39101

  • SHA512

    62f299953cd4b369d33b24ac0d2118a2827554e21ce5d8ccccacc5263d8335a52ba17ea1fb1502075932333cf503a10ae0fa611c9b9485d98c81316edfbc2372

  • SSDEEP

    3072:6Vy4W05xioLc9s0g2n9ICegMuBOd9KXaP3E+/ngr9+oKBJUIjgmLDJ1u1uakB9Yj:ifQ9hBO6XaP3/Q9+xzUug8/udG

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_60581f93b3f00098492db1674e3862e8d0557bce69797c68cea7cc80bca39101.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60581f93b3f00098492db1674e3862e8d0557bce69797c68cea7cc80bca39101.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zjxldomn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2772
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rjbihyjq.exe" C:\Windows\SysWOW64\zjxldomn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2720
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create zjxldomn binPath= "C:\Windows\SysWOW64\zjxldomn\rjbihyjq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60581f93b3f00098492db1674e3862e8d0557bce69797c68cea7cc80bca39101.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1904
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description zjxldomn "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2828
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start zjxldomn
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2836
    • 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:2608
  • C:\Windows\SysWOW64\zjxldomn\rjbihyjq.exe
    C:\Windows\SysWOW64\zjxldomn\rjbihyjq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60581f93b3f00098492db1674e3862e8d0557bce69797c68cea7cc80bca39101.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2728
    • 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:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.6MB

    MD5

    9afc03d81ae55c70120a7f30b279e855

    SHA1

    fd703aefa6c8d3ba616ff358632ed7eff1b20e35

    SHA256

    e5112f034bbead0b01d465da558e478ffedb0d236c3aec7547926636355f5e39

    SHA512

    a7c931e53f7a85c882a8ab93e05586df434771f202efa742b3148434a16850f02b33b4f4e20de79b875ee83516e1dcea4d1ae6b909b8c62e86e1e7cb20ad55e5

  • memory/2604-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2604-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2604-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2604-12-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2604-19-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2728-18-0x0000000000400000-0x0000000002B40000-memory.dmp

    Filesize

    39.2MB

  • memory/2948-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2948-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2948-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2948-9-0x0000000002C30000-0x0000000002D30000-memory.dmp

    Filesize

    1024KB

  • memory/2948-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2948-7-0x0000000000400000-0x0000000002B40000-memory.dmp

    Filesize

    39.2MB

  • memory/2948-1-0x0000000002C30000-0x0000000002D30000-memory.dmp

    Filesize

    1024KB