Analysis

  • max time kernel
    171s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2022 23:41

General

  • Target

    b1d6b49ad01ca4fdd86f6da0a58e2ee38e448e41cfeabe774d298481e05e03d3.exe

  • Size

    148KB

  • MD5

    8f4cc06ea607576eab1d1d1208f90b7e

  • SHA1

    7f2c1d3755960c85b54c5d154288c094c41cd7ad

  • SHA256

    b1d6b49ad01ca4fdd86f6da0a58e2ee38e448e41cfeabe774d298481e05e03d3

  • SHA512

    97ba94b767662161f35703fe72c8fcf63f70e43b44bc6854dbdaddcffc4fe97fd82effee6e0d81f6666efcd61dd739973a41bc4acf435f1b89677e08507bf90d

  • SSDEEP

    3072:iSe1qFzxgwMylAUR6UQUcJPPB5RPXsS+t9jiL4oQZiEoLdT:iCFzxgZVU49xEtlcWQ

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • 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 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1d6b49ad01ca4fdd86f6da0a58e2ee38e448e41cfeabe774d298481e05e03d3.exe
    "C:\Users\Admin\AppData\Local\Temp\b1d6b49ad01ca4fdd86f6da0a58e2ee38e448e41cfeabe774d298481e05e03d3.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3516
    • C:\Users\Admin\wdtug.exe
      "C:\Users\Admin\wdtug.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:5056

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\wdtug.exe

    Filesize

    148KB

    MD5

    1dc909df9774d499e2e6f88d455e171c

    SHA1

    d8351b6410633ed45334ad77dd6868af27b80cf4

    SHA256

    e24e03d20f1dd9ba7ce06dcff78a9ef6fbe1f7b1ec253e193907c2ba20ab4702

    SHA512

    df56d5754412adb84708f170dfff57a07745e262f178598e893436dd36d18bf89228ffed4f928d5e1d65bbac8486a31595e8754d96e0dafe00f714a5fdafc1ef

  • C:\Users\Admin\wdtug.exe

    Filesize

    148KB

    MD5

    1dc909df9774d499e2e6f88d455e171c

    SHA1

    d8351b6410633ed45334ad77dd6868af27b80cf4

    SHA256

    e24e03d20f1dd9ba7ce06dcff78a9ef6fbe1f7b1ec253e193907c2ba20ab4702

    SHA512

    df56d5754412adb84708f170dfff57a07745e262f178598e893436dd36d18bf89228ffed4f928d5e1d65bbac8486a31595e8754d96e0dafe00f714a5fdafc1ef