Analysis

  • max time kernel
    153s
  • max time network
    174s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    31-07-2022 17:56

General

  • Target

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe

  • Size

    604KB

  • MD5

    8202b93966917230e6fc1f66f2761c18

  • SHA1

    eeb91c80cd52416375e86af94734e98546a82072

  • SHA256

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

  • SHA512

    0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_H_e_l_p_RECOVER_INSTRUCTIONS+oew.txt

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://jj4dhbg4d86sdgrsdfzcadc.ziraimshi.com/8F1C2D1E9DF01C4F 2. http://uu5dbnmsedf4s3jdnfbh34fsdf.parsesun.at/8F1C2D1E9DF01C4F 3. http://perc54hg47fhnkjnfvcdgvdc.clinkjuno.com/8F1C2D1E9DF01C4F 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 and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/8F1C2D1E9DF01C4F 4. Follow the instructions on the site. !!! IMPORTANT INFORMATION: !!! Your personal pages: http://jj4dhbg4d86sdgrsdfzcadc.ziraimshi.com/8F1C2D1E9DF01C4F http://uu5dbnmsedf4s3jdnfbh34fsdf.parsesun.at/8F1C2D1E9DF01C4F http://perc54hg47fhnkjnfvcdgvdc.clinkjuno.com/8F1C2D1E9DF01C4F !!! Your personal page Tor-Browser: fwgrhsao3aoml7ej.onion/8F1C2D1E9DF01C4F !!! Your personal identification ID: 8F1C2D1E9DF01C4F
URLs

http://jj4dhbg4d86sdgrsdfzcadc.ziraimshi.com/8F1C2D1E9DF01C4F

http://uu5dbnmsedf4s3jdnfbh34fsdf.parsesun.at/8F1C2D1E9DF01C4F

http://perc54hg47fhnkjnfvcdgvdc.clinkjuno.com/8F1C2D1E9DF01C4F

http://fwgrhsao3aoml7ej.onion/8F1C2D1E9DF01C4F

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 5 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
    "C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
      "C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Users\Admin\AppData\Roaming\owgxker.exe
        C:\Users\Admin\AppData\Roaming\owgxker.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Users\Admin\AppData\Roaming\owgxker.exe
          C:\Users\Admin\AppData\Roaming\owgxker.exe
          4⤵
          • Adds policy Run key to start application
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1276
          • C:\Windows\system32\bcdedit.exe
            bcdedit.exe /set {current} bootems off
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:672
          • C:\Windows\System32\vssadmin.exe
            "C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet
            5⤵
            • Interacts with shadow copies
            PID:556
          • C:\Windows\system32\bcdedit.exe
            bcdedit.exe /set {current} advancedoptions off
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:344
          • C:\Windows\system32\bcdedit.exe
            bcdedit.exe /set {current} optionsedit off
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1596
          • C:\Windows\system32\bcdedit.exe
            bcdedit.exe /set {current} bootstatuspolicy IgnoreAllFailures
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1764
          • C:\Windows\system32\bcdedit.exe
            bcdedit.exe /set {current} recoveryenabled off
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1964
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5F33D8~1.EXE
        3⤵
        • Deletes itself
        PID:980
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2020

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\owgxker.exe

    Filesize

    604KB

    MD5

    8202b93966917230e6fc1f66f2761c18

    SHA1

    eeb91c80cd52416375e86af94734e98546a82072

    SHA256

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

    SHA512

    0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

  • C:\Users\Admin\AppData\Roaming\owgxker.exe

    Filesize

    604KB

    MD5

    8202b93966917230e6fc1f66f2761c18

    SHA1

    eeb91c80cd52416375e86af94734e98546a82072

    SHA256

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

    SHA512

    0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

  • C:\Users\Admin\AppData\Roaming\owgxker.exe

    Filesize

    604KB

    MD5

    8202b93966917230e6fc1f66f2761c18

    SHA1

    eeb91c80cd52416375e86af94734e98546a82072

    SHA256

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

    SHA512

    0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

  • \Users\Admin\AppData\Roaming\owgxker.exe

    Filesize

    604KB

    MD5

    8202b93966917230e6fc1f66f2761c18

    SHA1

    eeb91c80cd52416375e86af94734e98546a82072

    SHA256

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

    SHA512

    0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

  • \Users\Admin\AppData\Roaming\owgxker.exe

    Filesize

    604KB

    MD5

    8202b93966917230e6fc1f66f2761c18

    SHA1

    eeb91c80cd52416375e86af94734e98546a82072

    SHA256

    5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

    SHA512

    0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

  • memory/344-102-0x0000000000000000-mapping.dmp

  • memory/556-101-0x0000000000000000-mapping.dmp

  • memory/672-100-0x0000000000000000-mapping.dmp

  • memory/980-79-0x0000000000000000-mapping.dmp

  • memory/1276-98-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1276-93-0x0000000000458C46-mapping.dmp

  • memory/1276-99-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1276-97-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1596-103-0x0000000000000000-mapping.dmp

  • memory/1732-75-0x0000000000000000-mapping.dmp

  • memory/1764-104-0x0000000000000000-mapping.dmp

  • memory/1908-69-0x0000000000350000-0x0000000000353000-memory.dmp

    Filesize

    12KB

  • memory/1908-54-0x0000000076AE1000-0x0000000076AE3000-memory.dmp

    Filesize

    8KB

  • memory/1908-55-0x0000000000350000-0x0000000000353000-memory.dmp

    Filesize

    12KB

  • memory/1964-105-0x0000000000000000-mapping.dmp

  • memory/1988-64-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-59-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-67-0x0000000000458C46-mapping.dmp

  • memory/1988-78-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-66-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-57-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-56-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-80-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-72-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-71-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1988-63-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB