Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14-05-2024 06:05

General

  • Target

    8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics.exe

  • Size

    223KB

  • MD5

    8f6f42565e966692af1ac93e82a1d100

  • SHA1

    097ccdca934cec31b2b54e6ca54ab9df6c04f7e0

  • SHA256

    af96cc289214800481e21ed8a8a4d52b49761bda1ae487648bbba6a949e69c13

  • SHA512

    b269ba4532c7de6471a9fafe43f64718711a36d0ea5250ed784e5b18bfb4451a23b0d414732f03c68375b7e3b88c01956a1738060d913e9814d4549c6579a6ea

  • SSDEEP

    3072:6tzKsLYSb9knI4UGW+D0pOG64gy4N9kSAU0oBHZStU7bZVC6PCZ9TTM1eQ:SIUGWvaV0YSSJVl8TTB

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

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
  • Drops file in System32 directory 2 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).

  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fmomollt\
      2⤵
        PID:1276
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ukgvqigo.exe" C:\Windows\SysWOW64\fmomollt\
        2⤵
          PID:2648
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create fmomollt binPath= "C:\Windows\SysWOW64\fmomollt\ukgvqigo.exe /d\"C:\Users\Admin\AppData\Local\Temp\8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2740
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description fmomollt "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2916
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start fmomollt
          2⤵
          • Launches sc.exe
          PID:2272
        • 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
          PID:2792
      • C:\Windows\SysWOW64\fmomollt\ukgvqigo.exe
        C:\Windows\SysWOW64\fmomollt\ukgvqigo.exe /d"C:\Users\Admin\AppData\Local\Temp\8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2812
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          PID:2532

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        12.0MB

        MD5

        f08e73a679effe042c0cab16a8574fbe

        SHA1

        b7829c078d04f3f2d189c12561ceaf59483b6488

        SHA256

        749445ffdb4531a4881f5016dc9dc793c697166f15af017c4cf981cf1db60fca

        SHA512

        6dbca00f5fbd0c6a3ec8ca6b1cf3d67cdfc2a79618c674a194f538fe6845469e7e28792653c94a5a9e7a0321daeeec6c55361ce6136d77f54c34316351f0883d

      • memory/1792-4-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/1792-3-0x0000000000220000-0x0000000000233000-memory.dmp

        Filesize

        76KB

      • memory/1792-2-0x0000000002670000-0x0000000002770000-memory.dmp

        Filesize

        1024KB

      • memory/1792-7-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/1792-8-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2532-42-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-39-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-13-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2532-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2532-17-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2532-50-0x00000000053F0000-0x00000000057FB000-memory.dmp

        Filesize

        4.0MB

      • memory/2532-26-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-49-0x00000000001B0000-0x00000000001B5000-memory.dmp

        Filesize

        20KB

      • memory/2532-46-0x00000000001B0000-0x00000000001B5000-memory.dmp

        Filesize

        20KB

      • memory/2532-45-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-44-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-43-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-10-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2532-41-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-40-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-15-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2532-38-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-37-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-36-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-35-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-34-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-33-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-32-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-31-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-30-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-29-0x0000000000120000-0x0000000000130000-memory.dmp

        Filesize

        64KB

      • memory/2532-23-0x0000000000110000-0x0000000000116000-memory.dmp

        Filesize

        24KB

      • memory/2532-22-0x0000000001950000-0x0000000001B5F000-memory.dmp

        Filesize

        2.1MB

      • memory/2532-19-0x0000000001950000-0x0000000001B5F000-memory.dmp

        Filesize

        2.1MB

      • memory/2532-54-0x0000000000250000-0x0000000000257000-memory.dmp

        Filesize

        28KB

      • memory/2532-53-0x00000000053F0000-0x00000000057FB000-memory.dmp

        Filesize

        4.0MB

      • memory/2812-16-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB