Analysis

  • max time kernel
    167s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2024 20:53

General

  • Target

    1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0.exe

  • Size

    384KB

  • MD5

    adfedffccba08228a1f1addaeb0ad537

  • SHA1

    8439a711ec759254f207eaac8162049062de2c0d

  • SHA256

    1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0

  • SHA512

    3d58224ba47c24ee7af5a3173b77a83082c978d44467d740e4b0b77e0ae727a34843d8a6fdf54c5ba7536d9b5c46c69f39175a7eacaccde905a4b00c47bbe351

  • SSDEEP

    6144:zBeJdbHCHcRgJUdarnrIM+PbeEnvutw2cfMuXrvEnODd0cpMLnJV6Xlxq+:zBCdG4g2rM+PFgCM+rcOd0l/elxz

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+etslc.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/7726A37C30D32E39 2. http://tes543berda73i48fsdfsd.keratadze.at/7726A37C30D32E39 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/7726A37C30D32E39 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/7726A37C30D32E39 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/7726A37C30D32E39 http://tes543berda73i48fsdfsd.keratadze.at/7726A37C30D32E39 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/7726A37C30D32E39 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/7726A37C30D32E39
URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/7726A37C30D32E39

http://tes543berda73i48fsdfsd.keratadze.at/7726A37C30D32E39

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/7726A37C30D32E39

http://xlowfznrg4wf7dli.ONION/7726A37C30D32E39

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.

  • Renames multiple (164) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • System policy modification 1 TTPs 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0.exe
    "C:\Users\Admin\AppData\Local\Temp\1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3000
    • C:\Users\Admin\AppData\Local\Temp\1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0.exe
      "C:\Users\Admin\AppData\Local\Temp\1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Windows\iannnskkynfv.exe
        C:\Windows\iannnskkynfv.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Windows\iannnskkynfv.exe
          C:\Windows\iannnskkynfv.exe
          4⤵
          • Executes dropped EXE
          • 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:2916
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1160
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\1093EB~1.EXE
        3⤵
        • Deletes itself
        PID:584
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+etslc.html

    Filesize

    11KB

    MD5

    dc1f526f024c349242cd70eca6bd6dcd

    SHA1

    1ef6540e3a5db405dc715110e0a7647b274574f0

    SHA256

    b2e01067650af16d91ee882d862e459caa2f4707ee9f7e0ac8d6df07681a11a6

    SHA512

    d6844b21e2087b06126adde6532773d4e480123779ee3100ca6e69430b8f7df8e92a6e913a0d33c0bed2ca3e9683f4c0538675216313ff0f6b35c97986536529

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+etslc.png

    Filesize

    63KB

    MD5

    ec2fc3a16004ace0ba266d5f0977c4ff

    SHA1

    9ff3266ef5cbf0690da583cbcc9e465679c8b8c2

    SHA256

    7f7d1f7d65f7f72de1319b5aeccabe7a55f28684b79edc710068fc680626ccdb

    SHA512

    c8ba73b2129f0221aafc552b9134664ad382a9944499ccbc6e7187f583adc56a9083cdf6422e47e90dd4146c5ff06d26999001d31f86af2841ccf7f93eb74aa8

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECOVERY_+etslc.txt

    Filesize

    1KB

    MD5

    912c6b5ca5717026a5b7a9dcb6e25136

    SHA1

    88b9609b96a1e06f2c9296c4a27bf57181e3aa3c

    SHA256

    5952cfddf363fcfcab9fcf4a4889fbe7e4f8ba7421bf55ef6fb6caa0a95fdb40

    SHA512

    ef815203da4c40df6e4ed2e1674c479fffdb58c8a124f5caabdd7ee7bd530bca2da4609bde03e6f307da51f9579e6bb0f9f031c8cc3629ebb73e7e239eb49d37

  • C:\Windows\iannnskkynfv.exe

    Filesize

    384KB

    MD5

    adfedffccba08228a1f1addaeb0ad537

    SHA1

    8439a711ec759254f207eaac8162049062de2c0d

    SHA256

    1093eb4a29db197dceb1a8c61dce72b2de5479f3cab1583ff955c06c63ef71e0

    SHA512

    3d58224ba47c24ee7af5a3173b77a83082c978d44467d740e4b0b77e0ae727a34843d8a6fdf54c5ba7536d9b5c46c69f39175a7eacaccde905a4b00c47bbe351

  • memory/2560-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2560-7-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-9-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-11-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-30-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-15-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-5-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-18-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-19-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-3-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2560-26-0x00000000023F0000-0x00000000026ED000-memory.dmp

    Filesize

    3.0MB

  • memory/2560-28-0x00000000023F0000-0x00000000026ED000-memory.dmp

    Filesize

    3.0MB

  • memory/2820-29-0x0000000000400000-0x00000000006FD000-memory.dmp

    Filesize

    3.0MB

  • memory/2916-48-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-418-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-49-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-50-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-51-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-52-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-54-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-55-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-909-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-897-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-71-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-773-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-270-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-762-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-756-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/2916-758-0x0000000000400000-0x0000000000485000-memory.dmp

    Filesize

    532KB

  • memory/3000-0-0x0000000000400000-0x00000000006FD000-memory.dmp

    Filesize

    3.0MB

  • memory/3000-1-0x00000000001D0000-0x00000000001D3000-memory.dmp

    Filesize

    12KB

  • memory/3000-2-0x0000000000400000-0x00000000006FD000-memory.dmp

    Filesize

    3.0MB

  • memory/3000-17-0x00000000001D0000-0x00000000001D3000-memory.dmp

    Filesize

    12KB