Analysis

  • max time kernel
    142s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 17:50

General

  • Target

    f1f0bc22079b5b2b33ec560b0a64c330_NeikiAnalytics.exe

  • Size

    504KB

  • MD5

    f1f0bc22079b5b2b33ec560b0a64c330

  • SHA1

    216fe91a2916660d82ce58357f40ef05992b5d1e

  • SHA256

    ebb8f40ced7bc2272ef320188049ca5e08e33ef6d9847185d784a27b3846d70e

  • SHA512

    8c6b35a5292f79d234e873fb2514254ee881471058db4910cd51dd2696d2ab61f71110118cd2f192512ec06f25d58ac641418608212ed26f50e26ca1913b4e48

  • SSDEEP

    12288:tPmTkT0+nXTv1d5Jo/H4a6ZeUOHFVS9Qg:Vmo4IXhd81rS

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 5 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1f0bc22079b5b2b33ec560b0a64c330_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\f1f0bc22079b5b2b33ec560b0a64c330_NeikiAnalytics.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Users\Admin\AppData\Local\Temp\f1f0bc22079b5b2b33ec560b0a64c330_NeikiAnalytics.exe
      "C:\Users\Admin\AppData\Local\Temp\f1f0bc22079b5b2b33ec560b0a64c330_NeikiAnalytics.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe
        C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe -notray
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2368
        • C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe
          "C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1948
          • C:\Windows\SysWOW64\ipconfig.exe
            "C:\Windows\system32\ipconfig.exe"
            5⤵
            • Gathers network information
            • Suspicious use of WriteProcessMemory
            PID:1660
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\SKJRFFGB.bat" "
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:2836
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v Explorrer /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe -notray" /f
                7⤵
                • Adds Run key to start application
                • Modifies registry key
                PID:1000
        • C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe
          "C:\Users\Admin\AppData\Roaming\AppsData\Explorrer.exe"
          4⤵
          • Executes dropped EXE
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          PID:1520
          • C:\Windows\SysWOW64\regsvr32.exe
            regsvr32.exe /u /s "C:\Users\Admin\AppData\Roaming\IE\bho.dll"
            5⤵
            • Loads dropped DLL
            PID:1196
          • C:\Windows\SysWOW64\regsvr32.exe
            regsvr32.exe /s "C:\Users\Admin\AppData\Roaming\IE\bho.dll"
            5⤵
            • Loads dropped DLL
            • Installs/modifies Browser Helper Object
            • Modifies registry class
            PID:2892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\SKJRFFGB.bat

    Filesize

    153B

    MD5

    02cbdd547ced25f8f7dc814d9169d567

    SHA1

    fc9697d828dcda615f6edd3e49a55b9307dbd311

    SHA256

    ec250cdf89523b18688d45fdc11bc93e46547a574ef59e03426c098f6b887c07

    SHA512

    cec1b6c5d843408e3cb6345a3430d8469a07c09677e1bd4c522c41ee29dbd941236a8dd9963410c69a165f3913c30aa22cfd206e51a59b9ffd160c38e70cfe3f

  • \Users\Admin\AppData\Roaming\AppsData\Explorrer.exe

    Filesize

    504KB

    MD5

    8d6b7a1973e2cb270540ee8d087d27b5

    SHA1

    5658043b8bc0e6b6017f810902be475e4c4c27a6

    SHA256

    b1f6a56ae7f96bcc2d1891b0001567ce769800135b866e432a7f0208372f763c

    SHA512

    fc7a7103be01a1bbf4df85571160fcfa3602af021f99798754136534e6f1bddc7673760efd404af062aa967d8bfb79e3f59a35a6c636547e7dfef4aeb6c2ed65

  • \Users\Admin\AppData\Roaming\IE\bho.dll

    Filesize

    87KB

    MD5

    49a92a33d1775b45b3bd45f8bec24585

    SHA1

    ea404af50bbdad5cbc9f95f4068bdc30c9fceff6

    SHA256

    976540cf1b4d04d80be1f1af8ea0f050c3f03a0a8c4e339589b7bb9180fc07f5

    SHA512

    7d5c4ea5c6f950a41bff386289df88b3f6d78444d7eeaa8a426569ce7698c2dfa916ae02d321af2be839c20e53b2ba9b3bb6a1573cad3b578733b082f0dc292f

  • memory/1520-76-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-91-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-218-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-87-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-83-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-85-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-84-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-61-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-63-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-65-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-67-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-69-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-72-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-81-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-78-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-86-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-80-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-79-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-58-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-82-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1660-95-0x00000000000C0000-0x00000000000C1000-memory.dmp

    Filesize

    4KB

  • memory/1948-213-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2368-43-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB

  • memory/2368-37-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB

  • memory/2368-89-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB

  • memory/2532-19-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2532-9-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2532-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2532-13-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2532-42-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2532-40-0x0000000000410000-0x00000000004EF000-memory.dmp

    Filesize

    892KB

  • memory/2532-30-0x00000000024C0000-0x000000000255C000-memory.dmp

    Filesize

    624KB

  • memory/2532-11-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2664-0-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB

  • memory/2664-6-0x00000000004D0000-0x00000000004D1000-memory.dmp

    Filesize

    4KB

  • memory/2664-7-0x0000000001D40000-0x0000000001D41000-memory.dmp

    Filesize

    4KB

  • memory/2664-8-0x0000000001D50000-0x0000000001D51000-memory.dmp

    Filesize

    4KB

  • memory/2664-4-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB

  • memory/2664-20-0x0000000002630000-0x00000000026CC000-memory.dmp

    Filesize

    624KB

  • memory/2664-5-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/2664-3-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB

  • memory/2664-44-0x0000000002630000-0x00000000026CC000-memory.dmp

    Filesize

    624KB

  • memory/2664-22-0x0000000000400000-0x000000000049C000-memory.dmp

    Filesize

    624KB