Overview

overview

10

Static

static

3

2024-04-17...er.exe

windows7-x64

10

2024-04-17...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    87s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    17-04-2024 13:33

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General

  • Target

    2024-04-17_4d9374c7352452ff60805fd2026288ef_magniber.exe

  • Size

    1.7MB

  • MD5

    4d9374c7352452ff60805fd2026288ef

  • SHA1

    51408ccb2074ef28a8f5342074047afa0dfca40f

  • SHA256

    58edd2a0980b15f7fc6c892011751a30c134757142a54c2cedcbba4af2cbf855

  • SHA512

    992621093ecccc2facdad80e28da361f7e6d9fe296d398c061095127f5713a3c18ef6cf971aa7b52d5b1ef87253edf654feb2fc67ad722c89a8195dbb4b8adf9

  • SSDEEP

    49152:jPNi7z6QzqIStJV/GYZ1zkm5BUm9SFadRd:jPNiX6QzqISppZ1zlSUdRd

Score
10/10
blackbastapersistenceransomware

Malware Config

Extracted

Path

C:\Program Files\instructions_read_me.txt

Family

blackbasta

Ransom Note
ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 917af89f-7b90-4dee-89e8-9adb52df735b *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.
URLs

https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/

Signatures

  • Black Basta

    A ransomware family targeting Windows and Linux ESXi first seen in February 2022.

    ransomwareblackbasta
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Detects command variations typically used by ransomware 4 IoCs
  • Renames multiple (4213) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies registry class 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-17_4d9374c7352452ff60805fd2026288ef_magniber.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-17_4d9374c7352452ff60805fd2026288ef_magniber.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2960
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\instructions_read_me.txt
    Filesize

    1KB

    MD5

    ad2904845489bf13e65c1f650227bfac

    SHA1

    7f93e9214faff74dbd506173f1e2afcae5fd603d

    SHA256

    b01c1765e4d0ebe528ada7933bf0dea86c8a392e3a21b6a25ae51ee79fdd3fb5

    SHA512

    f3b4f0e1bb660abc435c500ae9876c2143afee8877d428b4103d165593ad546229d63fe9d582900b68655ff56345983bc9a8e35428c2103c65bb2c6f15b0b9c9

    Download Submit

  • memory/1888-0-0x0000000000810000-0x00000000009D3000-memory.dmp

    Filesize

    1.8MB

    Download

  • memory/1888-1-0x0000000002360000-0x0000000002444000-memory.dmp

    Filesize

    912KB

    Download

  • memory/1888-3-0x0000000002360000-0x0000000002444000-memory.dmp

    Filesize

    912KB

    Download

  • memory/1888-4-0x0000000002360000-0x0000000002444000-memory.dmp

    Filesize

    912KB

    Download

  • memory/1888-1406-0x0000000000810000-0x00000000009D3000-memory.dmp

    Filesize

    1.8MB

    Download

  • memory/1888-1607-0x0000000002360000-0x0000000002444000-memory.dmp

    Filesize

    912KB

    Download