Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-05-2024 14:53

General

  • Target

    66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics.exe

  • Size

    226KB

  • MD5

    66f1471577c3fd73acd71d4bd0317410

  • SHA1

    bf5608bab94ac20b4cb035f029037e9ab01261de

  • SHA256

    32e5898172c5f72671362353658b1e0e17f9dd1dff54d05df4aa2706f31a5b8a

  • SHA512

    bcfee081b3d338a5f6ff371afd75be86e3e78fb410b5ce684be4a1cad0ad820764ef68e65786da818f7b9e25a097fac9ce748e97ff92031ed0b703a5f2badf6b

  • SSDEEP

    3072:Vs6LoMMZ72uOA+TzcR3c+q57NKDj47uz2wMF7cIZH3gFT+Hzet:lyFrPqKXgwsZH3gFToq

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 7 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yodtqenl\
      2⤵
        PID:1116
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iyujewuc.exe" C:\Windows\SysWOW64\yodtqenl\
        2⤵
          PID:2536
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create yodtqenl binPath= "C:\Windows\SysWOW64\yodtqenl\iyujewuc.exe /d\"C:\Users\Admin\AppData\Local\Temp\66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2944
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description yodtqenl "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2108
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start yodtqenl
          2⤵
          • Launches sc.exe
          PID:2184
        • 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:2700
      • C:\Windows\SysWOW64\yodtqenl\iyujewuc.exe
        C:\Windows\SysWOW64\yodtqenl\iyujewuc.exe /d"C:\Users\Admin\AppData\Local\Temp\66f1471577c3fd73acd71d4bd0317410_NeikiAnalytics.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2480
        • 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:2500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        11.3MB

        MD5

        009d457be6c48f0452b69a6d5cb04339

        SHA1

        2085cdde805f7c5c33a302b113ae80a44e952b96

        SHA256

        b827bd06524fd00d89fab43524d79092676907625fe9a8a6d875c44a7fb9ec75

        SHA512

        3075f9fdc2dbea51c9f0531d57945305bf4bd1ef843c9a5f6276511da9f56feaf20eeb4af103d9ff026c89d2bd8fbd1e998401ffa5bb55585a4c60e3e04e7f4f

      • memory/1976-2-0x0000000000220000-0x0000000000233000-memory.dmp

        Filesize

        76KB

      • memory/1976-1-0x0000000001B10000-0x0000000001C10000-memory.dmp

        Filesize

        1024KB

      • memory/1976-7-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/1976-8-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/1976-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2480-16-0x0000000000400000-0x0000000001A03000-memory.dmp

        Filesize

        22.0MB

      • memory/2500-43-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-39-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-10-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2500-15-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2500-17-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2500-26-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-23-0x0000000000110000-0x0000000000116000-memory.dmp

        Filesize

        24KB

      • memory/2500-22-0x00000000019D0000-0x0000000001BDF000-memory.dmp

        Filesize

        2.1MB

      • memory/2500-19-0x00000000019D0000-0x0000000001BDF000-memory.dmp

        Filesize

        2.1MB

      • memory/2500-45-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-44-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2500-42-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-41-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-40-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-13-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2500-38-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-37-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-36-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-35-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-34-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-33-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-32-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-31-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-30-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-29-0x0000000000160000-0x0000000000170000-memory.dmp

        Filesize

        64KB

      • memory/2500-54-0x0000000000180000-0x0000000000187000-memory.dmp

        Filesize

        28KB

      • memory/2500-50-0x0000000005450000-0x000000000585B000-memory.dmp

        Filesize

        4.0MB

      • memory/2500-49-0x0000000000170000-0x0000000000175000-memory.dmp

        Filesize

        20KB

      • memory/2500-46-0x0000000000170000-0x0000000000175000-memory.dmp

        Filesize

        20KB

      • memory/2500-53-0x0000000005450000-0x000000000585B000-memory.dmp

        Filesize

        4.0MB