Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2024, 03:45

General

  • Target
    $PLUGINSDIR/nsPrefsJs_1_0_0_4.dll
  • Size 169KB
  • Sample241104-ea62gatbrp
  • SHA256 cad8134fff16bcc5d39037e63b5248c70ed56b057546ebd3d8c3730c4fd5a563
  • MD5 SHA1 SHA512 SSDEEP
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsPrefsJs_1_0_0_4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3736
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsPrefsJs_1_0_0_4.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1680
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 600
        3⤵
        • Program crash
        PID:1968
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1680 -ip 1680
    1⤵
      PID:2384

    Network

          MITRE ATT&CK Enterprise v15

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