Analysis

  • max time kernel
    157s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    10-05-2022 06:01

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 4 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:2344
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jVYbanglCI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE55F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1544
    • 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:4764

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE55F.tmp

    Filesize

    1KB

    MD5

    243998c586e102d5706d22e1ccdb5781

    SHA1

    a8326b85c94e9f68b6a92c45551933fb5d5fdb52

    SHA256

    4bcf513eb854417da91582ebb18b08b740bddb3fb6973f3693cbcf65c76b4331

    SHA512

    720376589d9dcd21c138f4725b66a8b604b3d6691c61c3c980cc0cead4184da328906e669497276caee719363cdf09c19d11c4a4729983a7a632c817c0ab642d

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

    Filesize

    360KB

    MD5

    57b076b700553392d4b27b8aec82086b

    SHA1

    916044c79d0f3db65bc4732877dee3e5dbfeaae2

    SHA256

    9ff43e411d773083b87f5f5814bf3497b5792e508c0fbede15f7231d2c3692c7

    SHA512

    5dd8744ea9710f533fc05512bd73c7dd8e5b47df96143724cd85acee6e0d4b4e2ab1baf3a00344195686b996e4c7351c64b97c487dc8aed005273b511f298ce9

  • memory/2344-133-0x0000000004CF0000-0x0000000004D82000-memory.dmp

    Filesize

    584KB

  • memory/2344-134-0x0000000004C30000-0x0000000004C3A000-memory.dmp

    Filesize

    40KB

  • memory/2344-135-0x0000000004E80000-0x0000000004ED6000-memory.dmp

    Filesize

    344KB

  • memory/2344-130-0x0000000000190000-0x00000000001F0000-memory.dmp

    Filesize

    384KB

  • memory/2344-132-0x00000000052A0000-0x0000000005844000-memory.dmp

    Filesize

    5.6MB

  • memory/2344-131-0x0000000004B90000-0x0000000004C2C000-memory.dmp

    Filesize

    624KB

  • memory/4764-139-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/4764-141-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/4764-142-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB