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Overview

overview

10

Static

static

3

96baed262f...in.exe

windows7-x64

10

96baed262f...in.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18/12/2024, 11:51

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General

  • Target

    96baed262fd126604299b719bb1c5f44376149693c9d5c66f663b2ea693854cc.bin.exe

  • Size

    890KB

  • MD5

    cbcdea93331bf90f7f2ca77ac98fe13c

  • SHA1

    b9c7e3371dd668847d73c661a93ed28d046f0f75

  • SHA256

    96baed262fd126604299b719bb1c5f44376149693c9d5c66f663b2ea693854cc

  • SHA512

    519d9f5f0762bda56e3c5ff1330255038259af7a7d6b595448711ca408a26e5f9f1691729f1eca13f144cae730a59ba294efb34a1d142bc1de698326fc63773f

  • SSDEEP

    24576:aPXdcPawe01sAN3BSWM0sdcOHgbLTB8/JYYaj:aK1sW3B6dcOHgbBgJYYaj

Score
10/10
blackbastadefense_evasiondiscoveryexecutionimpactpersistenceransomware

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: f6c10067-1e5b-41fb-8e2e-1bccf55444af *!* 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 (4988) 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 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\96baed262fd126604299b719bb1c5f44376149693c9d5c66f663b2ea693854cc.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\96baed262fd126604299b719bb1c5f44376149693c9d5c66f663b2ea693854cc.bin.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:3048
    • 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:2644
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2680
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2776

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Program Files\instructions_read_me.txt
    Filesize

    1KB

    MD5

    79db15db62f6645bb49a0b177029178a

    SHA1

    e82d9e8e69584da086d483dd19b6bc1f4607122e

    SHA256

    e95ecbffa283bfe32b8383a3d500a2e99dcf8626b352f381b2caf6c478da8127

    SHA512

    0dbec2e6cf9b675ab757b138fc7de403ea4f433f77bc597e7c7a0263d71f086638bdd795cb829014d3213a5fb080f2a4a6c82071aed985c154d36546b140e3bc

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