Analysis

  • max time kernel
    11s
  • max time network
    14s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2022 10:43

General

  • Target

    93ee9d29b667cdd6b6e46ffd9e9ae8d1087f7e124eb0c77484e736c6cb8a17fe.exe

  • Size

    428KB

  • MD5

    50007722272dd33f55ee0c5410a088f1

  • SHA1

    d9053b8c06e7b02e3bd676360af94cf90bce6f4e

  • SHA256

    93ee9d29b667cdd6b6e46ffd9e9ae8d1087f7e124eb0c77484e736c6cb8a17fe

  • SHA512

    1cf22036ebd24dc623198f9fd3a9eb1199146407f2c9925bff24752d8850f9c4513fd56bbe610ef49fc47532b395977189ac77b1fde5b5d6370ad44bc3f19d12

  • SSDEEP

    12288:cF+M5soRP+ivi+rh4StBIJ9qygqG4V+pfSblCJxfS6:cAMmSP+ivJrh4yBwEPZp6OR1

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+csaye.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/8DA41E9A62BEAF6 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8DA41E9A62BEAF6 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/8DA41E9A62BEAF6 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/8DA41E9A62BEAF6 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8DA41E9A62BEAF6 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8DA41E9A62BEAF6 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/8DA41E9A62BEAF6 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/8DA41E9A62BEAF6
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/8DA41E9A62BEAF6

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/8DA41E9A62BEAF6

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/8DA41E9A62BEAF6

http://xlowfznrg4wf7dli.ONION/8DA41E9A62BEAF6

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 64 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 54 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\93ee9d29b667cdd6b6e46ffd9e9ae8d1087f7e124eb0c77484e736c6cb8a17fe.exe
    "C:\Users\Admin\AppData\Local\Temp\93ee9d29b667cdd6b6e46ffd9e9ae8d1087f7e124eb0c77484e736c6cb8a17fe.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4880
    • C:\Windows\gepypsgftpnk.exe
      C:\Windows\gepypsgftpnk.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:1560
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1932
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\93EE9D~1.EXE
      2⤵
        PID:2336
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1644

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\gepypsgftpnk.exe

      Filesize

      428KB

      MD5

      50007722272dd33f55ee0c5410a088f1

      SHA1

      d9053b8c06e7b02e3bd676360af94cf90bce6f4e

      SHA256

      93ee9d29b667cdd6b6e46ffd9e9ae8d1087f7e124eb0c77484e736c6cb8a17fe

      SHA512

      1cf22036ebd24dc623198f9fd3a9eb1199146407f2c9925bff24752d8850f9c4513fd56bbe610ef49fc47532b395977189ac77b1fde5b5d6370ad44bc3f19d12

    • C:\Windows\gepypsgftpnk.exe

      Filesize

      428KB

      MD5

      50007722272dd33f55ee0c5410a088f1

      SHA1

      d9053b8c06e7b02e3bd676360af94cf90bce6f4e

      SHA256

      93ee9d29b667cdd6b6e46ffd9e9ae8d1087f7e124eb0c77484e736c6cb8a17fe

      SHA512

      1cf22036ebd24dc623198f9fd3a9eb1199146407f2c9925bff24752d8850f9c4513fd56bbe610ef49fc47532b395977189ac77b1fde5b5d6370ad44bc3f19d12

    • memory/1560-137-0x0000000000000000-mapping.dmp

    • memory/1560-145-0x0000000002120000-0x00000000021A5000-memory.dmp

      Filesize

      532KB

    • memory/1932-146-0x0000000000000000-mapping.dmp

    • memory/2336-140-0x0000000000000000-mapping.dmp

    • memory/4880-132-0x0000000000400000-0x00000000004AE000-memory.dmp

      Filesize

      696KB

    • memory/4880-136-0x00000000022B0000-0x0000000002335000-memory.dmp

      Filesize

      532KB