Analysis

  • max time kernel
    186s
  • max time network
    185s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08-11-2022 04:49

General

  • Target

    aa3c96864225818340d549f429f9be3a474b94fafe19ec191e253dff358eabf1.exe

  • Size

    335KB

  • MD5

    4ba3b368b7a30eec7084a087460cd4a5

  • SHA1

    209abbe07dfa54439f93bfd1092006bcaa5dd83b

  • SHA256

    aa3c96864225818340d549f429f9be3a474b94fafe19ec191e253dff358eabf1

  • SHA512

    f9e07f1e4809e6406804d6842b0a090d7dc30ce0679d5c4264cd15d11033e4235e1ecec30a9832f57aa6d1fa9273fb75d16b763944f416526a18112219d23332

  • SSDEEP

    6144:cMlhTEzkFxLyQb7kmp76NYsYRnZa0dIa4Scb0a/8MH9CC4l:cMlhZFxVb7kIfsgxl4Nw+f9Dy

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2292972927-2705560509-2768824231-1000\_RECoVERY_+ufvyl.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 RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 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/D78898589F841FE 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/D78898589F841FE 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/D78898589F841FE 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/D78898589F841FE 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/D78898589F841FE http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/D78898589F841FE http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/D78898589F841FE *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/D78898589F841FE
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/D78898589F841FE

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/D78898589F841FE

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/D78898589F841FE

http://xlowfznrg4wf7dli.ONION/D78898589F841FE

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 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.

  • Modifies system certificate store 2 TTPs 3 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\aa3c96864225818340d549f429f9be3a474b94fafe19ec191e253dff358eabf1.exe
    "C:\Users\Admin\AppData\Local\Temp\aa3c96864225818340d549f429f9be3a474b94fafe19ec191e253dff358eabf1.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Windows\wdpadfnsthse.exe
      C:\Windows\wdpadfnsthse.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:1464
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1380
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\AA3C96~1.EXE
      2⤵
      • Deletes itself
      PID:1340
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\wdpadfnsthse.exe

    Filesize

    335KB

    MD5

    4ba3b368b7a30eec7084a087460cd4a5

    SHA1

    209abbe07dfa54439f93bfd1092006bcaa5dd83b

    SHA256

    aa3c96864225818340d549f429f9be3a474b94fafe19ec191e253dff358eabf1

    SHA512

    f9e07f1e4809e6406804d6842b0a090d7dc30ce0679d5c4264cd15d11033e4235e1ecec30a9832f57aa6d1fa9273fb75d16b763944f416526a18112219d23332

  • C:\Windows\wdpadfnsthse.exe

    Filesize

    335KB

    MD5

    4ba3b368b7a30eec7084a087460cd4a5

    SHA1

    209abbe07dfa54439f93bfd1092006bcaa5dd83b

    SHA256

    aa3c96864225818340d549f429f9be3a474b94fafe19ec191e253dff358eabf1

    SHA512

    f9e07f1e4809e6406804d6842b0a090d7dc30ce0679d5c4264cd15d11033e4235e1ecec30a9832f57aa6d1fa9273fb75d16b763944f416526a18112219d23332

  • memory/1340-60-0x0000000000000000-mapping.dmp

  • memory/1380-65-0x0000000000000000-mapping.dmp

  • memory/1464-57-0x0000000000000000-mapping.dmp

  • memory/1464-62-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/1464-64-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/1488-54-0x0000000075B41000-0x0000000075B43000-memory.dmp

    Filesize

    8KB

  • memory/1488-56-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/1488-55-0x00000000003C0000-0x00000000003EE000-memory.dmp

    Filesize

    184KB

  • memory/1488-61-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB