Analysis

  • max time kernel
    32s
  • max time network
    38s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2022 06:14

General

  • Target

    c70e314a85c183b41b319577e1ebad64353b883018cac97de2188520dbcd778e.exe

  • Size

    424KB

  • MD5

    7db02f9228554043de47b354221c8bca

  • SHA1

    bbe4cd030c70151abd8dbf9e68caedc05e61dbde

  • SHA256

    c70e314a85c183b41b319577e1ebad64353b883018cac97de2188520dbcd778e

  • SHA512

    ba67aefe72db0025fea7222e6357e4d506bdc0054bcd59d7d5d41d147da063c1f89d29149f340d4896258851289da797a0957e8340d3e9bb58c7189d362b7ed9

  • SSDEEP

    6144:lg696TSBF7DRiH9Pyn65fNkKJXXj8p8HmHorKspEJihalpr70PoXbftChXW3Axfg:t96kNqmMNTFQaEorEJ4E5blCJxfS6

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2295526160-1155304984-640977766-1000\_RECoVERY_+iemxf.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://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F0D8AD7C16F8E766 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F0D8AD7C16F8E766 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/F0D8AD7C16F8E766 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/F0D8AD7C16F8E766 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F0D8AD7C16F8E766 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F0D8AD7C16F8E766 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/F0D8AD7C16F8E766 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/F0D8AD7C16F8E766
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F0D8AD7C16F8E766

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F0D8AD7C16F8E766

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/F0D8AD7C16F8E766

http://xlowfznrg4wf7dli.ONION/F0D8AD7C16F8E766

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 8 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.

  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c70e314a85c183b41b319577e1ebad64353b883018cac97de2188520dbcd778e.exe
    "C:\Users\Admin\AppData\Local\Temp\c70e314a85c183b41b319577e1ebad64353b883018cac97de2188520dbcd778e.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Windows\lhkxacsiavxm.exe
      C:\Windows\lhkxacsiavxm.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3948
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\C70E31~1.EXE
      2⤵
        PID:4852
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2120

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\lhkxacsiavxm.exe

      Filesize

      424KB

      MD5

      7db02f9228554043de47b354221c8bca

      SHA1

      bbe4cd030c70151abd8dbf9e68caedc05e61dbde

      SHA256

      c70e314a85c183b41b319577e1ebad64353b883018cac97de2188520dbcd778e

      SHA512

      ba67aefe72db0025fea7222e6357e4d506bdc0054bcd59d7d5d41d147da063c1f89d29149f340d4896258851289da797a0957e8340d3e9bb58c7189d362b7ed9

    • C:\Windows\lhkxacsiavxm.exe

      Filesize

      424KB

      MD5

      7db02f9228554043de47b354221c8bca

      SHA1

      bbe4cd030c70151abd8dbf9e68caedc05e61dbde

      SHA256

      c70e314a85c183b41b319577e1ebad64353b883018cac97de2188520dbcd778e

      SHA512

      ba67aefe72db0025fea7222e6357e4d506bdc0054bcd59d7d5d41d147da063c1f89d29149f340d4896258851289da797a0957e8340d3e9bb58c7189d362b7ed9

    • memory/3948-136-0x0000000000000000-mapping.dmp

    • memory/3948-145-0x0000000002120000-0x00000000021A5000-memory.dmp

      Filesize

      532KB

    • memory/4080-146-0x0000000000000000-mapping.dmp

    • memory/4404-132-0x0000000000400000-0x00000000004AE000-memory.dmp

      Filesize

      696KB

    • memory/4404-139-0x00000000022A0000-0x0000000002325000-memory.dmp

      Filesize

      532KB

    • memory/4852-140-0x0000000000000000-mapping.dmp