Analysis

  • max time kernel
    109s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-04-2022 09:30

General

  • Target

    2.exe

  • Size

    1.0MB

  • MD5

    2d2f9219f2ae72a45a9f78f343622a2d

  • SHA1

    5999180e2e40457a3c9ad375c870449710f00c61

  • SHA256

    fde431d08dd6bc86638d72f8fe39f0562202f1183e23fd3ba42661913b337322

  • SHA512

    9e8b0af7779e0a2b8b64ceb8b3df5495c79fee07c1e3224f8d400e024e4726a1b6881ce882529c23437f8cd7bb51254a9b11b22bc5f7d86f85e19039261fa46b

Score
10/10

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\1615690883\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "noctua" extension. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay in bitcoins. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailbox: [email protected] or [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Program crash 2 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2.exe
    "C:\Users\Admin\AppData\Local\Temp\2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Users\Admin\AppData\Local\Temp\2.exe
      2⤵
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Users\Admin\AppData\Local\Temp\2.exe
        "C:\Users\Admin\AppData\Local\Temp\2.exe" n1392
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 416
          4⤵
          • Program crash
          PID:1000
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:856
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:328
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1184
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 476
      2⤵
      • Program crash
      PID:956
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1936
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:828
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1408
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:1192

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\134245471

        Filesize

        524.6MB

        MD5

        0a9828bcd55d39b5509f14adff638bea

        SHA1

        03f70663f33a5575a2ed86b4ad24c4921df5c604

        SHA256

        adae460b39f7ef78f67415a523bd3e3f67b2cc596ba9e5a53e98bcc6a7f9f476

        SHA512

        4fc1ce5fe4babd5f97ff0f01b68ba4ece5022578f7d323636d229636d84d86326f51d837f6fd7387a66bc74008b48bf6c673c0003613cb6aed4c86ffcdbe7951

      • C:\Users\Admin\AppData\Local\Temp\134245471

        Filesize

        378.5MB

        MD5

        114e59c6e6061efeb9177853f1b531f5

        SHA1

        3196da6070cb12168caa005edefdbd4e4691e248

        SHA256

        4fafa395f975cbca1fed66577a1dce3e4c6cb3dceb7b4ceb8179fc60d1c9c415

        SHA512

        8f00f8db8860670d25f4ba16800cbc86f04c506ce48d818eeba257cf805b92eac85959c5f7dd93e1f6471a6c04dd0885605a52ef7a27571019920812e6bcd8d0

      • \Users\Admin\AppData\Local\Temp\nsy55F.tmp\System.dll

        Filesize

        12KB

        MD5

        cff85c549d536f651d4fb8387f1976f2

        SHA1

        d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

        SHA256

        8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

        SHA512

        531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

      • \Users\Admin\AppData\Local\Temp\nsz9224.tmp\System.dll

        Filesize

        12KB

        MD5

        cff85c549d536f651d4fb8387f1976f2

        SHA1

        d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

        SHA256

        8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

        SHA512

        531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

      • memory/452-54-0x0000000075381000-0x0000000075383000-memory.dmp

        Filesize

        8KB

      • memory/1184-66-0x000007FEFBFA1000-0x000007FEFBFA3000-memory.dmp

        Filesize

        8KB

      • memory/1392-58-0x0000000000408000-0x0000000000409000-memory.dmp

        Filesize

        4KB

      • memory/1392-56-0x0000000000401000-0x0000000000407600-memory.dmp

        Filesize

        25KB