Analysis

  • max time kernel
    151s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    20-07-2022 19:51

General

  • Target

    4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9.exe

  • Size

    384KB

  • MD5

    2ec19eb165f23e89f39eb0da921327e7

  • SHA1

    5755e8ffcd934d5d0bd6cf58cd39c3440db91ab9

  • SHA256

    4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9

  • SHA512

    f1c477cf08a1298399f8df71cda29b6fddc686df851a34e0738ba94437beeff685f7a6e571c1a321885514dd2f6336cc63f8f10564db2cac1818710fd83e4c44

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3440072777-2118400376-1759599358-1000\Recovery+dimjh.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/79EDAEB93489FFF 2. http://tes543berda73i48fsdfsd.keratadze.at/79EDAEB93489FFF 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/79EDAEB93489FFF 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/79EDAEB93489FFF 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/79EDAEB93489FFF http://tes543berda73i48fsdfsd.keratadze.at/79EDAEB93489FFF http://tt54rfdjhb34rfbnknaerg.milerteddy.com/79EDAEB93489FFF *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/79EDAEB93489FFF
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/79EDAEB93489FFF

http://tes543berda73i48fsdfsd.keratadze.at/79EDAEB93489FFF

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/79EDAEB93489FFF

http://xlowfznrg4wf7dli.ONION/79EDAEB93489FFF

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 2 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9.exe
    "C:\Users\Admin\AppData\Local\Temp\4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Users\Admin\AppData\Local\Temp\4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9.exe
      "C:\Users\Admin\AppData\Local\Temp\4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\gimtflmxnxqg.exe
        C:\Windows\gimtflmxnxqg.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1940
        • C:\Windows\gimtflmxnxqg.exe
          C:\Windows\gimtflmxnxqg.exe
          4⤵
          • 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:1320
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1512
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4DC124~1.EXE
        3⤵
        • Deletes itself
        PID:892
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1304

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\gimtflmxnxqg.exe

    Filesize

    384KB

    MD5

    2ec19eb165f23e89f39eb0da921327e7

    SHA1

    5755e8ffcd934d5d0bd6cf58cd39c3440db91ab9

    SHA256

    4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9

    SHA512

    f1c477cf08a1298399f8df71cda29b6fddc686df851a34e0738ba94437beeff685f7a6e571c1a321885514dd2f6336cc63f8f10564db2cac1818710fd83e4c44

  • C:\Windows\gimtflmxnxqg.exe

    Filesize

    384KB

    MD5

    2ec19eb165f23e89f39eb0da921327e7

    SHA1

    5755e8ffcd934d5d0bd6cf58cd39c3440db91ab9

    SHA256

    4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9

    SHA512

    f1c477cf08a1298399f8df71cda29b6fddc686df851a34e0738ba94437beeff685f7a6e571c1a321885514dd2f6336cc63f8f10564db2cac1818710fd83e4c44

  • C:\Windows\gimtflmxnxqg.exe

    Filesize

    384KB

    MD5

    2ec19eb165f23e89f39eb0da921327e7

    SHA1

    5755e8ffcd934d5d0bd6cf58cd39c3440db91ab9

    SHA256

    4dc12416bf7c3be9d573c8fa07847050307bd05cb67480e3c3874696614b73e9

    SHA512

    f1c477cf08a1298399f8df71cda29b6fddc686df851a34e0738ba94437beeff685f7a6e571c1a321885514dd2f6336cc63f8f10564db2cac1818710fd83e4c44

  • memory/892-76-0x0000000000000000-mapping.dmp

  • memory/1320-96-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1320-95-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1320-94-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1320-90-0x000000000043EEA8-mapping.dmp

  • memory/1512-97-0x0000000000000000-mapping.dmp

  • memory/1660-55-0x0000000000340000-0x0000000000343000-memory.dmp

    Filesize

    12KB

  • memory/1660-54-0x00000000762B1000-0x00000000762B3000-memory.dmp

    Filesize

    8KB

  • memory/1660-68-0x0000000000340000-0x0000000000343000-memory.dmp

    Filesize

    12KB

  • memory/1836-63-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-72-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-71-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-77-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-67-0x000000000043EEA8-mapping.dmp

  • memory/1836-66-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-64-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-59-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-57-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1836-56-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1940-73-0x0000000000000000-mapping.dmp