Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 02:01

General

  • Target

    45967aa94e05993a238471256c76cf50_NeikiAnalytics.exe

  • Size

    10.0MB

  • MD5

    45967aa94e05993a238471256c76cf50

  • SHA1

    7eac6fa92215523db5d653d7908cac6f4d98886e

  • SHA256

    b95cdea4530305336110efedcb5c7253abe364a9dcffd3480d0e2eeb7cf7d22d

  • SHA512

    725d93c0a67569e877a0bcf1ee4b66eeec722b416079e0925c14088c303d06f2471a06dc419dbefe943650c2f426caf50294f663fb5dbd35b3d4c8abdc775abf

  • SSDEEP

    49152:TQfztttttttttttttttttttttttttttttttttttttttttttttttttttttttttttN:TQ

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.

  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45967aa94e05993a238471256c76cf50_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\45967aa94e05993a238471256c76cf50_NeikiAnalytics.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\udmhsyas\
      2⤵
        PID:4768
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\orkvveff.exe" C:\Windows\SysWOW64\udmhsyas\
        2⤵
          PID:2788
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create udmhsyas binPath= "C:\Windows\SysWOW64\udmhsyas\orkvveff.exe /d\"C:\Users\Admin\AppData\Local\Temp\45967aa94e05993a238471256c76cf50_NeikiAnalytics.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1176
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description udmhsyas "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1368
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start udmhsyas
          2⤵
          • Launches sc.exe
          PID:2404
        • 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:3700
      • C:\Windows\SysWOW64\udmhsyas\orkvveff.exe
        C:\Windows\SysWOW64\udmhsyas\orkvveff.exe /d"C:\Users\Admin\AppData\Local\Temp\45967aa94e05993a238471256c76cf50_NeikiAnalytics.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Sets service image path in registry
          • Deletes itself
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          PID:1492

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      System Services

      1
      T1569

      Service Execution

      1
      T1569.002

      Persistence

      Create or Modify System Process

      2
      T1543

      Windows Service

      2
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Create or Modify System Process

      2
      T1543

      Windows Service

      2
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Impair Defenses

      1
      T1562

      Disable or Modify System Firewall

      1
      T1562.004

      Modify Registry

      1
      T1112

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\orkvveff.exe
        Filesize

        10.3MB

        MD5

        ae89e0a6abcd828f6a90a48ac1009978

        SHA1

        5d115bce8f44e9b1bf5ea8d7668a2a1125a1ffe7

        SHA256

        3f44570df3d0aae650969b3ff1cdd5209c1057c739ae4c024c4e2e1fa2943fcf

        SHA512

        88349678fdc66aa371aa978f40da9b718b16f152c1aef9b71d512e72d1b8d9735d5009ca3ec8474a1a112349e73b6e3aec972c95b55841ab8265ca901cf9dfe5

      • memory/1492-40-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-8-0x0000000000700000-0x0000000000715000-memory.dmp
        Filesize

        84KB

      • memory/1492-41-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-18-0x0000000002400000-0x000000000260F000-memory.dmp
        Filesize

        2.1MB

      • memory/1492-49-0x0000000007300000-0x000000000770B000-memory.dmp
        Filesize

        4.0MB

      • memory/1492-20-0x0000000002400000-0x000000000260F000-memory.dmp
        Filesize

        2.1MB

      • memory/1492-21-0x0000000001BB0000-0x0000000001BB6000-memory.dmp
        Filesize

        24KB

      • memory/1492-51-0x0000000007300000-0x000000000770B000-memory.dmp
        Filesize

        4.0MB

      • memory/1492-14-0x0000000000700000-0x0000000000715000-memory.dmp
        Filesize

        84KB

      • memory/1492-15-0x0000000000700000-0x0000000000715000-memory.dmp
        Filesize

        84KB

      • memory/1492-31-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-47-0x0000000001BD0000-0x0000000001BD5000-memory.dmp
        Filesize

        20KB

      • memory/1492-52-0x0000000001BE0000-0x0000000001BE7000-memory.dmp
        Filesize

        28KB

      • memory/1492-44-0x0000000001BD0000-0x0000000001BD5000-memory.dmp
        Filesize

        20KB

      • memory/1492-43-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-42-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-24-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-39-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-27-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-38-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-37-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-36-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-35-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-34-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-33-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-32-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-30-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-29-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1492-28-0x0000000001BC0000-0x0000000001BD0000-memory.dmp
        Filesize

        64KB

      • memory/1732-10-0x0000000000400000-0x0000000004037000-memory.dmp
        Filesize

        60.2MB

      • memory/2128-4-0x0000000000400000-0x0000000000415000-memory.dmp
        Filesize

        84KB

      • memory/2128-2-0x00000000041A0000-0x00000000041B3000-memory.dmp
        Filesize

        76KB

      • memory/2128-11-0x0000000000400000-0x0000000004037000-memory.dmp
        Filesize

        60.2MB

      • memory/2128-12-0x00000000041A0000-0x00000000041B3000-memory.dmp
        Filesize

        76KB

      • memory/2128-13-0x0000000000400000-0x0000000000415000-memory.dmp
        Filesize

        84KB

      • memory/2128-1-0x00000000042C0000-0x00000000043C0000-memory.dmp
        Filesize

        1024KB