Analysis

  • max time kernel
    12s
  • 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
    22-10-2022 09:47

General

  • Target

    2625381f7c386a2ca581b1b249bb922bc8aeca37a5d3f8a37b771741ef8fc8e1.exe

  • Size

    424KB

  • MD5

    74d5c545888561be891363d16ceae294

  • SHA1

    127f4c1da282b56c1d5e3f05944315147f024992

  • SHA256

    2625381f7c386a2ca581b1b249bb922bc8aeca37a5d3f8a37b771741ef8fc8e1

  • SHA512

    2faa671ca7e9e6f458772761146020f834c8dc42af4a30e12fd71cf2106ea23811fa10213d2416a7eb3830db9f85158d12475e5bfc3a7ff278dea8e04cf5d308

  • SSDEEP

    6144:C2QDnUrp63iAY4zSDQzxIvT2ok+IQGH02JCIoXbftChXW3AxfulDGgB:CdDUrp61uW0TlLIQGUbNblCJxfS6

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+mjsxg.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/39949531A6C685B3 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/39949531A6C685B3 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/39949531A6C685B3 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/39949531A6C685B3 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/39949531A6C685B3 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/39949531A6C685B3 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/39949531A6C685B3 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/39949531A6C685B3
URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/39949531A6C685B3

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/39949531A6C685B3

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/39949531A6C685B3

http://xlowfznrg4wf7dli.ONION/39949531A6C685B3

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 52 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\2625381f7c386a2ca581b1b249bb922bc8aeca37a5d3f8a37b771741ef8fc8e1.exe
    "C:\Users\Admin\AppData\Local\Temp\2625381f7c386a2ca581b1b249bb922bc8aeca37a5d3f8a37b771741ef8fc8e1.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Windows\cspmjhaoyeme.exe
      C:\Windows\cspmjhaoyeme.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:3064
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\262538~1.EXE
      2⤵
        PID:4584
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1276

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\cspmjhaoyeme.exe

      Filesize

      424KB

      MD5

      74d5c545888561be891363d16ceae294

      SHA1

      127f4c1da282b56c1d5e3f05944315147f024992

      SHA256

      2625381f7c386a2ca581b1b249bb922bc8aeca37a5d3f8a37b771741ef8fc8e1

      SHA512

      2faa671ca7e9e6f458772761146020f834c8dc42af4a30e12fd71cf2106ea23811fa10213d2416a7eb3830db9f85158d12475e5bfc3a7ff278dea8e04cf5d308

    • C:\Windows\cspmjhaoyeme.exe

      Filesize

      424KB

      MD5

      74d5c545888561be891363d16ceae294

      SHA1

      127f4c1da282b56c1d5e3f05944315147f024992

      SHA256

      2625381f7c386a2ca581b1b249bb922bc8aeca37a5d3f8a37b771741ef8fc8e1

      SHA512

      2faa671ca7e9e6f458772761146020f834c8dc42af4a30e12fd71cf2106ea23811fa10213d2416a7eb3830db9f85158d12475e5bfc3a7ff278dea8e04cf5d308

    • memory/1604-132-0x0000000000400000-0x00000000004AD000-memory.dmp

      Filesize

      692KB

    • memory/1604-136-0x0000000002320000-0x00000000023A5000-memory.dmp

      Filesize

      532KB

    • memory/2056-146-0x0000000000000000-mapping.dmp

    • memory/3064-137-0x0000000000000000-mapping.dmp

    • memory/3064-145-0x00000000021E0000-0x0000000002265000-memory.dmp

      Filesize

      532KB

    • memory/4584-140-0x0000000000000000-mapping.dmp