Overview

overview

10

Static

static

b04f17c1d9...34.exe

windows7-x64

8

b04f17c1d9...34.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2022 02:19

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General

  • Target

    b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34.exe

  • Size

    420KB

  • MD5

    1200f630d960ea698515201af0f0c006

  • SHA1

    5ba609358b8526c0378df266aff57b7aa21e3ed9

  • SHA256

    b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34

  • SHA512

    a72aa470f9f4f1ecd22eff01a9e74ca74c03f42f96a6004e330138673b2b52576dfa663ea8671daa6f7ae5f82bf9e7bb931b559540d336263cbf3aa2c8c0178d

  • SSDEEP

    6144:ZQHEannVRVHgyA37acHbkwKSvpruDo+sOJDy/GQoyVHi1i/nEtqhAxFzjtc7Ec6o:GHnVRCyAJKShulPk/GOVHZJcFlc7qUb

Score
10/10
teslacryptpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+nhtbw.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://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7EB3C0A1738CE6C 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/7EB3C0A1738CE6C 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/7EB3C0A1738CE6C 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/7EB3C0A1738CE6C 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7EB3C0A1738CE6C http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/7EB3C0A1738CE6C http://yyre45dbvn2nhbefbmh.begumvelic.at/7EB3C0A1738CE6C Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/7EB3C0A1738CE6C
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/7EB3C0A1738CE6C

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/7EB3C0A1738CE6C

http://yyre45dbvn2nhbefbmh.begumvelic.at/7EB3C0A1738CE6C

http://xlowfznrg4wf7dli.ONION/7EB3C0A1738CE6C

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

    ransomwareteslacrypt
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of SetThreadContext 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34.exe
    "C:\Users\Admin\AppData\Local\Temp\b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Users\Admin\AppData\Local\Temp\b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34.exe
      "C:\Users\Admin\AppData\Local\Temp\b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Windows\dsjnoaelpymi.exe
        C:\Windows\dsjnoaelpymi.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1496
        • C:\Windows\dsjnoaelpymi.exe
          C:\Windows\dsjnoaelpymi.exe
          4⤵
          • 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:3456
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4080
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\B04F17~1.EXE
        3⤵
          PID:4688
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4760

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\dsjnoaelpymi.exe
      Filesize

      420KB

      MD5

      1200f630d960ea698515201af0f0c006

      SHA1

      5ba609358b8526c0378df266aff57b7aa21e3ed9

      SHA256

      b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34

      SHA512

      a72aa470f9f4f1ecd22eff01a9e74ca74c03f42f96a6004e330138673b2b52576dfa663ea8671daa6f7ae5f82bf9e7bb931b559540d336263cbf3aa2c8c0178d

      Download Submit

    • C:\Windows\dsjnoaelpymi.exe
      Filesize

      420KB

      MD5

      1200f630d960ea698515201af0f0c006

      SHA1

      5ba609358b8526c0378df266aff57b7aa21e3ed9

      SHA256

      b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34

      SHA512

      a72aa470f9f4f1ecd22eff01a9e74ca74c03f42f96a6004e330138673b2b52576dfa663ea8671daa6f7ae5f82bf9e7bb931b559540d336263cbf3aa2c8c0178d

      Download Submit

    • C:\Windows\dsjnoaelpymi.exe
      Filesize

      420KB

      MD5

      1200f630d960ea698515201af0f0c006

      SHA1

      5ba609358b8526c0378df266aff57b7aa21e3ed9

      SHA256

      b04f17c1d93ca085b43623689be0bbf6eb6d9c725b47293b31054d4195e56c34

      SHA512

      a72aa470f9f4f1ecd22eff01a9e74ca74c03f42f96a6004e330138673b2b52576dfa663ea8671daa6f7ae5f82bf9e7bb931b559540d336263cbf3aa2c8c0178d

      Download Submit

    • memory/884-137-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/884-135-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/884-144-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/884-138-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/884-139-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/884-134-0x0000000000000000-mapping.dmp

      Download

    • memory/1496-140-0x0000000000000000-mapping.dmp

      Download

    • memory/3456-145-0x0000000000000000-mapping.dmp

      Download

    • memory/3456-148-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3456-149-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3456-150-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/3456-152-0x0000000000400000-0x0000000000485000-memory.dmp

      Filesize

      532KB

      Download

    • memory/4080-151-0x0000000000000000-mapping.dmp

      Download

    • memory/4412-136-0x0000000000540000-0x0000000000543000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4412-132-0x0000000000540000-0x0000000000543000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4412-133-0x0000000000540000-0x0000000000543000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4688-143-0x0000000000000000-mapping.dmp

      Download