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Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/03/2024, 16:22

General

  • Target

    b52254949fd52113e0888401f2ddfb76.exe

  • Size

    323KB

  • MD5

    b52254949fd52113e0888401f2ddfb76

  • SHA1

    4ee5d96d55819ba88030f67bbb266273b308d55b

  • SHA256

    56f6a0b5eaad6add2e0178407f31f462c432e614da0c86a8c803747589066855

  • SHA512

    dd8ffe0cb977b2eb7f26505ec0a316ece3ba5e20641e09594e038ca86bf842347f601f4491fb262d24fb4da235942a7ed1551f670add62c972dbe81df9fcf0f6

  • SSDEEP

    6144:8WE5Op3aq/md4qKMjD/goFARqmqXcTs17ppL7gpbnAapYUpRr9uW:8B5OpqgbpIpFiHk7nL7SuW

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b52254949fd52113e0888401f2ddfb76.exe
    "C:\Users\Admin\AppData\Local\Temp\b52254949fd52113e0888401f2ddfb76.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3312
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3312 -s 556
      2⤵
      • Program crash
      PID:1360
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 3312 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b52254949fd52113e0888401f2ddfb76.exe" & start C:\Users\Admin\AppData\Local\xsalhach.exe -f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3460
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 3312
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2400
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:3256
      • C:\Users\Admin\AppData\Local\xsalhach.exe
        C:\Users\Admin\AppData\Local\xsalhach.exe -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2152
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 568
          4⤵
          • Program crash
          PID:2884
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3312 -ip 3312
    1⤵
      PID:1548
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2152 -ip 2152
      1⤵
        PID:1952

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\xsalhach.exe

        Filesize

        323KB

        MD5

        b52254949fd52113e0888401f2ddfb76

        SHA1

        4ee5d96d55819ba88030f67bbb266273b308d55b

        SHA256

        56f6a0b5eaad6add2e0178407f31f462c432e614da0c86a8c803747589066855

        SHA512

        dd8ffe0cb977b2eb7f26505ec0a316ece3ba5e20641e09594e038ca86bf842347f601f4491fb262d24fb4da235942a7ed1551f670add62c972dbe81df9fcf0f6

      • memory/2152-8-0x0000000000C00000-0x0000000000C02000-memory.dmp

        Filesize

        8KB

      • memory/2152-10-0x0000000001000000-0x00000000010B6000-memory.dmp

        Filesize

        728KB

      • memory/3312-0-0x00000000006C0000-0x00000000006C2000-memory.dmp

        Filesize

        8KB

      • memory/3312-1-0x0000000001000000-0x00000000010B6000-memory.dmp

        Filesize

        728KB

      • memory/3312-2-0x00000000006B0000-0x00000000006B2000-memory.dmp

        Filesize

        8KB

      • memory/3312-4-0x0000000001000000-0x00000000010B6000-memory.dmp

        Filesize

        728KB