Overview

overview

10

Static

static

3

2413841b2f...59.exe

windows7-x64

3

2413841b2f...59.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-10-2024 06:51

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General

  • Target

    2413841b2f5f656e269f61644d3957847b199107bb6b141c3208a03df59f0759.exe

  • Size

    1.9MB

  • MD5

    7c62976c8d0e7434b327ce3c402d8a62

  • SHA1

    0d91b68c7b1a1fb5471258591676fcf89025e238

  • SHA256

    2413841b2f5f656e269f61644d3957847b199107bb6b141c3208a03df59f0759

  • SHA512

    51e43e3d863ff2f549699653c27bf4e08aaabe1d3853a3ed0b2a713ac627295646ef309906ecf1765d9372fc653891c31c87b6bd39676a59ec5b12876e38d58c

  • SSDEEP

    49152:qfM4iMoQz20361ERIJ0UWGtT069FKdqd:qfM4RoQz20KVsG+akdqd

Score
10/10
blackbastadefense_evasiondiscoveryexecutionimpactpersistenceransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\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: a3ae86a9-08d9-49ca-8317-2f17622c44fd *!* 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
  • Blackbasta family
    blackbasta
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (4113) 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Interacts with shadow copies 3 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 5 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\2413841b2f5f656e269f61644d3957847b199107bb6b141c3208a03df59f0759.exe
    "C:\Users\Admin\AppData\Local\Temp\2413841b2f5f656e269f61644d3957847b199107bb6b141c3208a03df59f0759.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2748
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1032
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\instructions_read_me.txt
    Filesize

    1KB

    MD5

    6c9d880ec05571bddccc87024900a16a

    SHA1

    755249de858335b5f093aaedb35702b703a31800

    SHA256

    aebc04130914171934740c1815a9c762bdf5d829c5e69a4038e45716402cbf41

    SHA512

    3e9bc0b1cdf86a19c7c33f0fcd728ceec86d864c745e736ea5c9d36ac19916cd19c22622158d2344dbd0731e208ab093f06667cf9b6a97a277993404d17180ec

    Download Submit

  • memory/4088-0-0x0000000000EF0000-0x00000000010E7000-memory.dmp

    Filesize

    2.0MB

    Download

  • memory/4088-1-0x0000000000EF0000-0x00000000010E7000-memory.dmp

    Filesize

    2.0MB

    Download

  • memory/4088-2-0x0000000003110000-0x00000000031F4000-memory.dmp

    Filesize

    912KB

    Download

  • memory/4088-4-0x0000000003110000-0x00000000031F4000-memory.dmp

    Filesize

    912KB

    Download

  • memory/4088-710-0x0000000000EF0000-0x00000000010E7000-memory.dmp

    Filesize

    2.0MB

    Download

  • memory/4088-866-0x0000000003110000-0x00000000031F4000-memory.dmp

    Filesize

    912KB

    Download