Analysis

  • max time kernel
    191s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    31-07-2022 12:14

General

  • Target

    5f5b2501b23fd3efceffa161bb51b9721a10f583e85e10a287faa170d847e1cc.exe

  • Size

    342KB

  • MD5

    1363011ce43fdadbff9360a2e2716731

  • SHA1

    d980ddf282aa7170c38caaa4fe73d05cf04d9fe6

  • SHA256

    5f5b2501b23fd3efceffa161bb51b9721a10f583e85e10a287faa170d847e1cc

  • SHA512

    355c654a7226f6c68367f0ede1f294d84f5f2d8b70757c9c0b20546589971b5534d67b0a99360acca7d5a0251aca0339b55226e859d5d53637a5491533072feb

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\Recovery+dnmsb.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 RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 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://tt54rfdjhb34rfbnknaerg.milerteddy.com/C683CCD3C5648DB 2. http://kkd47eh4hdjshb5t.angortra.at/C683CCD3C5648DB 3. http://ytrest84y5i456hghadefdsd.pontogrot.com/C683CCD3C5648DB 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/C683CCD3C5648DB 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://tt54rfdjhb34rfbnknaerg.milerteddy.com/C683CCD3C5648DB http://kkd47eh4hdjshb5t.angortra.at/C683CCD3C5648DB http://ytrest84y5i456hghadefdsd.pontogrot.com/C683CCD3C5648DB *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/C683CCD3C5648DB
URLs

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/C683CCD3C5648DB

http://kkd47eh4hdjshb5t.angortra.at/C683CCD3C5648DB

http://ytrest84y5i456hghadefdsd.pontogrot.com/C683CCD3C5648DB

http://xlowfznrg4wf7dli.ONION/C683CCD3C5648DB

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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f5b2501b23fd3efceffa161bb51b9721a10f583e85e10a287faa170d847e1cc.exe
    "C:\Users\Admin\AppData\Local\Temp\5f5b2501b23fd3efceffa161bb51b9721a10f583e85e10a287faa170d847e1cc.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Windows\hbscdxjxfody.exe
      C:\Windows\hbscdxjxfody.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:1548
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1888
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5F5B25~1.EXE
      2⤵
      • Deletes itself
      PID:956

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\hbscdxjxfody.exe

    Filesize

    342KB

    MD5

    1363011ce43fdadbff9360a2e2716731

    SHA1

    d980ddf282aa7170c38caaa4fe73d05cf04d9fe6

    SHA256

    5f5b2501b23fd3efceffa161bb51b9721a10f583e85e10a287faa170d847e1cc

    SHA512

    355c654a7226f6c68367f0ede1f294d84f5f2d8b70757c9c0b20546589971b5534d67b0a99360acca7d5a0251aca0339b55226e859d5d53637a5491533072feb

  • C:\Windows\hbscdxjxfody.exe

    Filesize

    342KB

    MD5

    1363011ce43fdadbff9360a2e2716731

    SHA1

    d980ddf282aa7170c38caaa4fe73d05cf04d9fe6

    SHA256

    5f5b2501b23fd3efceffa161bb51b9721a10f583e85e10a287faa170d847e1cc

    SHA512

    355c654a7226f6c68367f0ede1f294d84f5f2d8b70757c9c0b20546589971b5534d67b0a99360acca7d5a0251aca0339b55226e859d5d53637a5491533072feb

  • \??\PIPE\wkssvc

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • memory/956-62-0x0000000000000000-mapping.dmp

  • memory/1548-61-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/1548-58-0x0000000000000000-mapping.dmp

  • memory/1548-65-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/1664-54-0x00000000754B1000-0x00000000754B3000-memory.dmp

    Filesize

    8KB

  • memory/1664-57-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/1664-63-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/1664-56-0x0000000000400000-0x00000000004AB000-memory.dmp

    Filesize

    684KB

  • memory/1664-55-0x0000000001FF0000-0x000000000201E000-memory.dmp

    Filesize

    184KB

  • memory/1888-67-0x0000000000000000-mapping.dmp