Analysis

  • max time kernel
    153s
  • max time network
    193s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    31-07-2022 19:54

General

  • Target

    5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11.exe

  • Size

    332KB

  • MD5

    4aa08e4766abef7fa2cc773b92dab8c5

  • SHA1

    08981143807da8646bb7f5ae81e9081898a8d850

  • SHA256

    5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11

  • SHA512

    455210513993d12902b32375844f0008ffb262c82e30e26650b5c72c7ff7d6e9c674737a717a116ab2f8b5646b67779e17c59e6cbc06458721d5a74bfe32bb08

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3762437355-3468409815-1164039494-1000\_RECOVERY_+coepe.txt

Family

teslacrypt

Ransom Note
NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with AES More information about the encryption keys using AES can be found here: http://en.wikipedia.org/wiki/AES How did this happen ? !!! Specially for your PC was generated personal AES KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6AC5DE547F53A72 2. http://tes543berda73i48fsdfsd.keratadze.at/6AC5DE547F53A72 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6AC5DE547F53A72 If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser 3. Type in the address bar: xlowfznrg4wf7dli.onion/6AC5DE547F53A72 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6AC5DE547F53A72 http://tes543berda73i48fsdfsd.keratadze.at/6AC5DE547F53A72 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6AC5DE547F53A72 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/6AC5DE547F53A72
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/6AC5DE547F53A72

http://tes543berda73i48fsdfsd.keratadze.at/6AC5DE547F53A72

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6AC5DE547F53A72

http://xlowfznrg4wf7dli.ONION/6AC5DE547F53A72

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 34 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11.exe
    "C:\Users\Admin\AppData\Local\Temp\5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Windows\ceumxnpufoll.exe
      C:\Windows\ceumxnpufoll.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1004
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:572
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5E90B0~1.EXE
      2⤵
      • Deletes itself
      PID:1404
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\ceumxnpufoll.exe

    Filesize

    332KB

    MD5

    4aa08e4766abef7fa2cc773b92dab8c5

    SHA1

    08981143807da8646bb7f5ae81e9081898a8d850

    SHA256

    5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11

    SHA512

    455210513993d12902b32375844f0008ffb262c82e30e26650b5c72c7ff7d6e9c674737a717a116ab2f8b5646b67779e17c59e6cbc06458721d5a74bfe32bb08

  • C:\Windows\ceumxnpufoll.exe

    Filesize

    332KB

    MD5

    4aa08e4766abef7fa2cc773b92dab8c5

    SHA1

    08981143807da8646bb7f5ae81e9081898a8d850

    SHA256

    5e90b0042516378587887492a531d8e4b51d980db077bc1667c96119729c4f11

    SHA512

    455210513993d12902b32375844f0008ffb262c82e30e26650b5c72c7ff7d6e9c674737a717a116ab2f8b5646b67779e17c59e6cbc06458721d5a74bfe32bb08

  • memory/572-70-0x0000000000000000-mapping.dmp

  • memory/1004-60-0x0000000000000000-mapping.dmp

  • memory/1004-67-0x00000000004A0000-0x0000000000525000-memory.dmp

    Filesize

    532KB

  • memory/1116-54-0x0000000075731000-0x0000000075733000-memory.dmp

    Filesize

    8KB

  • memory/1116-55-0x0000000000400000-0x0000000000497000-memory.dmp

    Filesize

    604KB

  • memory/1116-59-0x0000000000270000-0x00000000002F5000-memory.dmp

    Filesize

    532KB

  • memory/1404-68-0x0000000000000000-mapping.dmp