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Analysis

  • max time kernel
    159s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 12:08

General

  • Target

    fb4eac1c3347e871b888daf54a29ffef542368bf29f5caea3cf96944acfb4bb3.exe

  • Size

    60KB

  • MD5

    c4add0b862693e3e1b7126ce140a14a0

  • SHA1

    685a4c06c36e2e25d65159e28a77757550d36409

  • SHA256

    fb4eac1c3347e871b888daf54a29ffef542368bf29f5caea3cf96944acfb4bb3

  • SHA512

    6a2033a00e0c74e5da45459d7cfb809948f463f0e25363a11b88464bafc5f2efe9c4821e613aa94fe3dcba29b575863a1362fa756941814808abffd54590f546

  • SSDEEP

    768:yFt04pX5u8baD9PyqJzEFABcqdi3zEtBq3l0OJYRvJQqY4zGxXRtNpSdqC6:xKgR5PyseuEE20O8JB3QRfpsqC6

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb4eac1c3347e871b888daf54a29ffef542368bf29f5caea3cf96944acfb4bb3.exe
    "C:\Users\Admin\AppData\Local\Temp\fb4eac1c3347e871b888daf54a29ffef542368bf29f5caea3cf96944acfb4bb3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4256
    • C:\Windows\Terms.exe
      "C:\Windows\Terms.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:220
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\6894.vbs"
      2⤵
        PID:4824

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\6894.vbs

      Filesize

      500B

      MD5

      66ac6483aaaa3717b990d380aad76477

      SHA1

      ebcded633f5048590ad0c8b84de698fbef4329a8

      SHA256

      0fb7af0deae71d6acc20a74d9b2a54c05f858110839ac9d1c59c22a90eba8a9a

      SHA512

      f880534b8ab5696a392029bb282aab0b708b16225267f5c8bfc4da8290f0792d33dc191935bbd1dfa9b85fce650745e6d78aca837b290c56e6d74ef237cffa2f

    • C:\Windows\Terms.exe

      Filesize

      60KB

      MD5

      c4add0b862693e3e1b7126ce140a14a0

      SHA1

      685a4c06c36e2e25d65159e28a77757550d36409

      SHA256

      fb4eac1c3347e871b888daf54a29ffef542368bf29f5caea3cf96944acfb4bb3

      SHA512

      6a2033a00e0c74e5da45459d7cfb809948f463f0e25363a11b88464bafc5f2efe9c4821e613aa94fe3dcba29b575863a1362fa756941814808abffd54590f546

    • C:\Windows\Terms.exe

      Filesize

      60KB

      MD5

      c4add0b862693e3e1b7126ce140a14a0

      SHA1

      685a4c06c36e2e25d65159e28a77757550d36409

      SHA256

      fb4eac1c3347e871b888daf54a29ffef542368bf29f5caea3cf96944acfb4bb3

      SHA512

      6a2033a00e0c74e5da45459d7cfb809948f463f0e25363a11b88464bafc5f2efe9c4821e613aa94fe3dcba29b575863a1362fa756941814808abffd54590f546