Overview

overview

10

Static

static

10

3b15b66bf6...1e.exe

windows7-x64

10

3b15b66bf6...1e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2024 15:53

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General

  • Target

    3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe

  • Size

    34KB

  • MD5

    5bcf1a6a65d8d0d2ad1c2a78935322b5

  • SHA1

    c5af15f8170e3840ba756397cb1548fa9489fae9

  • SHA256

    3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e

  • SHA512

    f21e3bc29b60d3ed248dd048774823d013beb43f2fcf7e560774f1987dc07ff42de2fb68a8dd3bad0653a8587cca9b9f18e0671342c81d8c5698b97a135eb639

  • SSDEEP

    768:24HLd8Vdh1qV1Esg8kdJCzSIZHkKRV6kNDB3eHkkb/u:2Q8VgV1U8ZGURVFB3eH/u

Score
10/10
makopransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. 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. .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.

    ransomwaremakop
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (8174) files with added filename extension

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

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies system certificate store 2 TTPs 6 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe
    "C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe" n3012
      2⤵
        PID:2880
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3036
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:3028
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2932
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3068
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2776
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2520
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:2484

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\readme-warning.txt
          Filesize

          1KB

          MD5

          77a68ff56146027e479d7fb6c84c4aa4

          SHA1

          d58ca47125ce00bf752bd66c378ace3559b98689

          SHA256

          fb25fd1761c66f21136889ce4f5a15c84e60e47e26595ae1b77f5f4f63d95f7f

          SHA512

          f47b954833905f6e6d17f98d882f460c7fd73e47efd48a9ddd01a16410c0754d240dab6fc45ae0afa3516f9dea24895619fdcbd96e232c5c3347e23fe485830e

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        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
          Filesize

          1KB

          MD5

          a266bb7dcc38a562631361bbf61dd11b

          SHA1

          3b1efd3a66ea28b16697394703a72ca340a05bd5

          SHA256

          df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

          SHA512

          0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          Filesize

          344B

          MD5

          505696d65b42d44c8345b7b39f3a5035

          SHA1

          d07b853c9abd30b2ee02ce7f900ee7769fe3ad4c

          SHA256

          d017feeb6455afc549b424609d8bf81509d85afd0dfc557a2c085926c982ada3

          SHA512

          034f5078af6f6af0f4c7909b16660f0175c32b83b7d1525bd45a57efcd0c4670876211d6b10d870684301a7cc33505eb879de5388eba8a97763a1e00c53ee83a

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        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
          Filesize

          242B

          MD5

          c7bc9592b70148103206fe1f5573eea8

          SHA1

          26fcd0e075172d9024832add85da80efd97888a3

          SHA256

          09482050292ee47ba873b4823a745c1e7bb99e166d99def63121488146bae3b7

          SHA512

          ba3ba93a42d1748dc9b2b7ec593d4c2f7aa8843be8c045f4142746cf78c2979c93bb700c41a0eea8a5da849fc98f8e6dd691b0da5055fa83b210b41e21c5ef6e

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        • C:\Users\Admin\AppData\Local\Temp\Tar59B9.tmp
          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

          Download Submit