Analysis

  • max time kernel
    145s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    30-08-2024 23:11

General

  • Target

    ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411.exe

  • Size

    14.3MB

  • MD5

    2d357e20218ecce7a188d34e2163ac1c

  • SHA1

    1a5bf816db5c146b3b685fdb28c3761608fdfef4

  • SHA256

    ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411

  • SHA512

    59d6d72c15003acd59936ad400a1d1d465c1d109e9c7360f14603c709679e1fddabfae87252fbb0829fad05fa668deca594715d4775bb2fa9b04af776a7fb182

  • SSDEEP

    6144:uM0Em6Qk5N3Sccccccccccccccccccccccccccccccccccccccccccccccccccc8:oEma

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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\ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411.exe
    "C:\Users\Admin\AppData\Local\Temp\ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ehcadft\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2556
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xwiejtdq.exe" C:\Windows\SysWOW64\ehcadft\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2324
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ehcadft binPath= "C:\Windows\SysWOW64\ehcadft\xwiejtdq.exe /d\"C:\Users\Admin\AppData\Local\Temp\ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2412
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ehcadft "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2476
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ehcadft
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2712
    • 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:2868
  • C:\Windows\SysWOW64\ehcadft\xwiejtdq.exe
    C:\Windows\SysWOW64\ehcadft\xwiejtdq.exe /d"C:\Users\Admin\AppData\Local\Temp\ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2756
    • 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:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.7MB

    MD5

    d666db1edbacd56576969c9642333ea8

    SHA1

    3a9984a104c5c26c4c1ba84915838834d030ace3

    SHA256

    a9d4594645b6bcd47aa5eadab5d6d8f7bee4320ea5ca8bf7df7a23ca1cf6a8a6

    SHA512

    1abdb4a4e0f9ac285639aeb858215d8cc1e10370bf5df27940b81168b8d57eefcd35e0c37f186507306f7de6ee26205b5b15d85e29413be1f7bfc32eb0dad421

  • memory/2516-0-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/2516-1-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2516-2-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2516-13-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2756-12-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2836-7-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2836-10-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2836-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2836-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2836-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB