Analysis

  • max time kernel
    132s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26-07-2021 13:00

General

  • Target

    e5262db186c97bbe533f0a674b08ecdafa3798ea7bc17c705df526419c168b60.sample.exe

  • Size

    3.5MB

  • MD5

    3d1cc4ef33bad0e39c757fce317ef82a

  • SHA1

    f34e4b7080aa2ee5cfee2dac38ec0c306203b4ac

  • SHA256

    e5262db186c97bbe533f0a674b08ecdafa3798ea7bc17c705df526419c168b60

  • SHA512

    8294b31a0f12fdc583ec1df5b9e36dfbb53745588da517c8c7842b197f96190b3228c759604df60159265e0f384bae0042ccc63ee966e81dc59b89b934b94e5b

Malware Config

Extracted

Path

C:\Users\Public\Desktop\Fix-Your-Files.txt

Ransom Note
-------------------------------------------- | What happened to your files? -------------------------------------------- We breached your corporate network and encrypted the data on your computers. The encrypted data includes documents, databases, photos and more - all were encrypted using a military grade encryption algorithms (AES-256 and RSA-2048). You cannot access those files right now. But dont worry! You can still get those files back and be up and running again in no time. --------------------------------------------- | How to contact us to get your files back? --------------------------------------------- The only way to restore your files is by purchasing a decryption tool loaded with a private key we created specifically for your network. Once run on an effected computer, the tool will decrypt all encrypted files - and you can resume day-to-day operations, preferably with better cyber security in mind. If you are interested in purchasing the decryption tool contact us at bapcocrypt@ctemplar.com ------------------------------------------------------- | How can you be certain we have the decryption tool? ------------------------------------------------------- In your mail to us attach up to 3 files (up to 3MB, no databases or spreadsheets). We will send them back to you decrypted.
Emails

bapcocrypt@ctemplar.com

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e5262db186c97bbe533f0a674b08ecdafa3798ea7bc17c705df526419c168b60.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\e5262db186c97bbe533f0a674b08ecdafa3798ea7bc17c705df526419c168b60.sample.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    PID:504
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3748
  • \??\c:\windows\system32\taskhostw.exe
    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
    1⤵
      PID:1480

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    1
    T1081

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

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    Downloads