Analysis

  • max time kernel
    160s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-05-2022 16:42

General

  • Target

    star.exe

  • Size

    360KB

  • MD5

    2f121145ea11b36f9ade0cb8f319e40a

  • SHA1

    d68049989ce98f71f6a562e439f6b6f0a165f003

  • SHA256

    59e0ab333060b4e510db5d36d87f0fe267ab66b0881955649b06d91d6dd2d486

  • SHA512

    9211a74cfa23c70c6ace8bd168ecbe1bb4a06d2e03b5adff5546115137b6ce849d3e41337581123d48e5082319f507d8f2d274621317fada182530e4a0abb6c7

Malware Config

Extracted

Path

C:\read-me.txt

Family

globeimposter

Ransom Note
All your files are Encrypted! For data recovery needs decryptor. How to buy decryptor: ---------------------------------------------------------------------------------------- | 1. Download Tor browser - https://www.torproject.org/ and install it. | 2. Open link in TOR browser - http://mmeeiix2ejdwkmseycljetmpiwebdvgjts75c63camjofn2cjdoulzqd.onion/?STAHYJUHGFV | 3. Create Ticket ---------------------------------------------------------------------------------------- Note! This link is available via Tor Browser only. ------------------------------------------------------------ or http://helpqvrg3cc5mvb3.onion/ Your ID ���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
URLs

http://mmeeiix2ejdwkmseycljetmpiwebdvgjts75c63camjofn2cjdoulzqd.onion/?STAHYJUHGFV

http://helpqvrg3cc5mvb3.onion/

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 24 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\star.exe
    "C:\Users\Admin\AppData\Local\Temp\star.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jVYbanglCI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp15D5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4872
    • C:\Users\Admin\AppData\Local\Temp\star.exe
      "{path}"
      2⤵
      • Modifies extensions of user files
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      PID:4712

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp15D5.tmp

    Filesize

    1KB

    MD5

    243998c586e102d5706d22e1ccdb5781

    SHA1

    a8326b85c94e9f68b6a92c45551933fb5d5fdb52

    SHA256

    4bcf513eb854417da91582ebb18b08b740bddb3fb6973f3693cbcf65c76b4331

    SHA512

    720376589d9dcd21c138f4725b66a8b604b3d6691c61c3c980cc0cead4184da328906e669497276caee719363cdf09c19d11c4a4729983a7a632c817c0ab642d

  • C:\Users\Admin\AppData\Roaming\jVYbanglCI.exe

    Filesize

    360KB

    MD5

    e96dede6838b61116dd01a44edb05d19

    SHA1

    3c195ec9969198ad4be7380b41b29524bdf7b548

    SHA256

    d8496fe034a2b714b8bb532c462ca8ac7f7417c620628557d0f51db84cd91175

    SHA512

    552c9816ac21b006f31bf270a6e3324da48e7161f2d7e572a67b5494d6b2bf52598d9a731cc2f8a7ea2f8d6aee9375023ab21783a16ad7105ef3a75076268636

  • memory/4712-142-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/4712-141-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/4712-139-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/4876-130-0x0000000000E80000-0x0000000000EE0000-memory.dmp

    Filesize

    384KB

  • memory/4876-135-0x0000000005BD0000-0x0000000005C26000-memory.dmp

    Filesize

    344KB

  • memory/4876-134-0x0000000005880000-0x000000000588A000-memory.dmp

    Filesize

    40KB

  • memory/4876-133-0x0000000005980000-0x0000000005A12000-memory.dmp

    Filesize

    584KB

  • memory/4876-132-0x0000000005F30000-0x00000000064D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4876-131-0x00000000058E0000-0x000000000597C000-memory.dmp

    Filesize

    624KB