Overview

overview

10

Static

static

10

6691bd27f6...56.exe

windows7_x64

9

6691bd27f6...56.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    174s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    01-02-2022 01:30

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General

  • Target

    6691bd27f6ef971d61a34797ab47414635a98fe531d469134dbefed18bb42956.exe

  • Size

    69KB

  • MD5

    13c1aeaccf79909d672f531e432e22d8

  • SHA1

    1e7f926253ac6fdbea18cdbe44c88fe0e8290969

  • SHA256

    6691bd27f6ef971d61a34797ab47414635a98fe531d469134dbefed18bb42956

  • SHA512

    b262dcd0670666e90a0d6f0e1b2138eb850885eecd5c7057369f9001c157e6b99c5654e1559c9c81a53310c7e7699cf0bd43f812545b5dd50e2574cd8738ff02

Score
10/10
ransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Favorites\A0C284-Readme.txt

Ransom Note
Hi Stellar, Your files are encrypted. All encrypted files for this computer has extension: .a0c284 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. Additionally, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_a0c284: V3T++a0vh9W3QeWp+vkC+/zJ0N8NnZ2rBNqPWQ+bJuXaM0IRFN amFUlmdr8PsQoif5KbnPkd8eguVppPY+wp4CtmSyAuu41fYlyY 5N2GHylI3fDXqE0xfXoGzfVePMXKdE+i9okZjrI6sd0FCf1ZNV Cg9FfY/lry+pq1qVfI1eMJe1JQeI9T/47Qvuc3OlU02XEav/8D wDRdqfcvShQk52PlRYHLR8FJkTPTDMIbyOpgYSIS2FU8d42TFo d7neJlECM49aZMjSA5yUYe7oQRWCPGRak1MsPBAQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 11 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6691bd27f6ef971d61a34797ab47414635a98fe531d469134dbefed18bb42956.exe
    "C:\Users\Admin\AppData\Local\Temp\6691bd27f6ef971d61a34797ab47414635a98fe531d469134dbefed18bb42956.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:2308
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:3452
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5056

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

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    Downloads