Overview

overview

10

Static

static

10

dc4bb89a5e...09.exe

windows7-x64

10

dc4bb89a5e...09.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    03/02/2024, 17:14

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General

  • Target

    dc4bb89a5e91280cb1fcf1d87f8616fe3cc283159c8babb240b437d2e1e5a309.exe

  • Size

    396KB

  • MD5

    6a956731b3677dd9d4d18641d40532ab

  • SHA1

    1994ee0b381c5528d5b5c01fb97a14b5ff81e5a5

  • SHA256

    dc4bb89a5e91280cb1fcf1d87f8616fe3cc283159c8babb240b437d2e1e5a309

  • SHA512

    314d87605dfe01cfb83a8b6ff17e98fc933f012ef933557d1899ebf0941d892a37f0d0692d99a3cd7061ce6c2c90a6dafe7b8dbb80ae875d9c368529f0b87991

  • SSDEEP

    1536:n28VgV1U8ZGURVFB3eH/omAhUfKQnSz+jS7ddpjHXSeSv3caALL95T:28VgV1UqGgVFBKo8ybdz

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 2 IoCs
  • 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\dc4bb89a5e91280cb1fcf1d87f8616fe3cc283159c8babb240b437d2e1e5a309.exe
    "C:\Users\Admin\AppData\Local\Temp\dc4bb89a5e91280cb1fcf1d87f8616fe3cc283159c8babb240b437d2e1e5a309.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Users\Admin\AppData\Local\Temp\dc4bb89a5e91280cb1fcf1d87f8616fe3cc283159c8babb240b437d2e1e5a309.exe
      "C:\Users\Admin\AppData\Local\Temp\dc4bb89a5e91280cb1fcf1d87f8616fe3cc283159c8babb240b437d2e1e5a309.exe" n804
      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:2648
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2084
    • 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:2744
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2604
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:2480

        Network

              MITRE ATT&CK Enterprise v15

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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

                7752c1f723cc279bc44d38f7e1b4418a

                SHA1

                f47db9b6eb4a1d28612c2cf68707796ec93ea9ac

                SHA256

                34a65bd9d9acdc2b96b9265610346d02ec976e3e520d7a5725981383b7852e90

                SHA512

                f561744bc453444633b02c902d98c966b2f57034bc8d411d896b498059a33366cc7d5950201be5db2b556354470eb8e2a349affac81c2d3d0c27d0fd0c0c16fc

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

                242B

                MD5

                87396126167aff03df951f76d98bb7cf

                SHA1

                ea88704250f2e6f20caade68a8eebe2c24a37d6d

                SHA256

                6fc991af94b7a48edb0c643a4a73345ecf8bccb3107381814afed30d55e15d83

                SHA512

                aa709725f58dd8e88f17802cb02ea72b97face70089860ef0f44e05d079838ce2ab0b179189cd6a1a6a013a9bab37b2960ac809c0b338d398844b20a0d50a342

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              • C:\Users\Admin\AppData\Local\Temp\Tar4FDA.tmp
                Filesize

                171KB

                MD5

                9c0c641c06238516f27941aa1166d427

                SHA1

                64cd549fb8cf014fcd9312aa7a5b023847b6c977

                SHA256

                4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

                SHA512

                936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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