Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2022 16:14

General

  • Target

    6c912191a6853ca9717c37053a4ab7014d6980e48d846a8c777e7ee056cf4a56.exe

  • Size

    852KB

  • MD5

    573b0103956eb1c9f12e2a2adcc77846

  • SHA1

    50e9fd321b9b1f39b6430b01941562ba924e40c0

  • SHA256

    6c912191a6853ca9717c37053a4ab7014d6980e48d846a8c777e7ee056cf4a56

  • SHA512

    ab26ac29ae7135cd6dcc5e95e6f9af290fadad9ab9afc87af60f38615a210a1a1d908d34e8796fe18108847b02cb51c1f6eb8f886237d1b0c8838edb5f4f9ef4

  • SSDEEP

    24576:OVwhMBsRpeiKuSbWY7XM970ZNmapxyJoyLJnM:OVw+XUSqH970Zwa1S

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c912191a6853ca9717c37053a4ab7014d6980e48d846a8c777e7ee056cf4a56.exe
    "C:\Users\Admin\AppData\Local\Temp\6c912191a6853ca9717c37053a4ab7014d6980e48d846a8c777e7ee056cf4a56.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Users\Admin\AppData\Local\Temp\6c912191a6853ca9717c37053a4ab7014d6980e48d846a8c777e7ee056cf4a56.exe
      "C:\Users\Admin\AppData\Local\Temp\6c912191a6853ca9717c37053a4ab7014d6980e48d846a8c777e7ee056cf4a56.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4776
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        • outlook_win_path
        PID:4476

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2592-132-0x0000000000010000-0x00000000000EC000-memory.dmp

    Filesize

    880KB

  • memory/2592-133-0x0000000005150000-0x00000000056F4000-memory.dmp

    Filesize

    5.6MB

  • memory/2592-134-0x0000000004A70000-0x0000000004B02000-memory.dmp

    Filesize

    584KB

  • memory/2592-135-0x0000000004B20000-0x0000000004B2A000-memory.dmp

    Filesize

    40KB

  • memory/2592-136-0x0000000008810000-0x00000000088AC000-memory.dmp

    Filesize

    624KB

  • memory/4476-145-0x0000000000500000-0x0000000000566000-memory.dmp

    Filesize

    408KB

  • memory/4776-138-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4776-140-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4776-143-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4776-146-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB