Analysis

  • max time kernel
    150s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2023 18:08

General

  • Target

    bacon_2018-04-13_22-27.bin.exe

  • Size

    144KB

  • MD5

    8ee82932641f3f527110b0f8ce6b11ce

  • SHA1

    fef4e9bc0d20f52423e02ec0bc6a52ea36af97a5

  • SHA256

    e9bbcfb5d9f42ef0dd75eb435e78d5226087679593893e0c08977694e720cd7a

  • SHA512

    6330e3ef0d523406edaf6a2e4e597a460a59e80efe477e574e6e49455637221505152ebb885be9fdd139831e78636567c11f1d161ce4e39a9e65d094ea65968a

  • SSDEEP

    3072:tjQgjwASUryVehsZnsTQqLSA/thZhUzcB4r50W23HnBB:R9iV3nspZ/t/6KWmH

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message 2F507276 In case of no answer in 24 hours write us to theese e-mails: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 10Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 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 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookAW 64 IoCs
  • Suspicious use of WriteProcessMemory 28 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\bacon_2018-04-13_22-27.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\bacon_2018-04-13_22-27.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookAW
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:920
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1924
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1228
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2444
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1172
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2588
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:1968
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:2748
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1056

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW2.cab.id-2F507276.[[email protected]].java

        Filesize

        189.5MB

        MD5

        bedcff1fbf474091cb262a9a6002adba

        SHA1

        99a933b1b111081d40db3a28d0675d532b238573

        SHA256

        df010cb7e54e96d4e2811837437272a4f735edc074f0960457c3efaa03046678

        SHA512

        ecfc71ce6931ed039fa0385d5e5447887306d75d4c01a284c2f609187c991b40e0908850ede69e03a78ab528c483668714fe2bc49873f6c2e00a3a16b492121c

      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

        Filesize

        13KB

        MD5

        f3c61fa1d4d9675baeee5e1fa8eecfe0

        SHA1

        ba90341961f02d9b7579bdde82946ca4d978aeff

        SHA256

        e78c3f440c708194481f9c370e7fde6a42a7e678c921cb8087f3323a8d2f409e

        SHA512

        fc92f2c29f7e3710f9770cae8f83a8e19ddad1562f24c1e07c4d5f0c64260c5183a56d9c4cc0dc399df4c8d0473db4f7cbb6abb8ad9d8700984e43ec6b7c61d9

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

        Filesize

        13KB

        MD5

        f3c61fa1d4d9675baeee5e1fa8eecfe0

        SHA1

        ba90341961f02d9b7579bdde82946ca4d978aeff

        SHA256

        e78c3f440c708194481f9c370e7fde6a42a7e678c921cb8087f3323a8d2f409e

        SHA512

        fc92f2c29f7e3710f9770cae8f83a8e19ddad1562f24c1e07c4d5f0c64260c5183a56d9c4cc0dc399df4c8d0473db4f7cbb6abb8ad9d8700984e43ec6b7c61d9

      • memory/1968-20098-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

      • memory/2004-3978-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB