Overview

overview

10

Static

static

10

3757824893...f7.exe

windows7-x64

10

3757824893...f7.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2024 15:53

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General

  • Target

    3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe

  • Size

    34KB

  • MD5

    bd935610cb878e275d35f292b93d8459

  • SHA1

    2cfc4a68ece6c9465ba44f96b677cc00536908ad

  • SHA256

    3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7

  • SHA512

    2b754a4aeae53fc78fd07e08007d47f232d1b30855c098a3469459def47f912155f53bc918bdbae7fa0daf903185a38db76c9dfd354fa447729dc285b506907b

  • SSDEEP

    768:x4K+eQXL36kOK1R01WseZ0y/QyYvhITluDA1afkKIDo:xueQbgK1e1S235HA1a20

Score
10/10
makoppersistenceransomwarespywarestealer

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 and now have the "makop" 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] .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 (8286) 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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
    "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
      "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe" n1096
      2⤵
        PID:2312
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2348
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2304
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2616
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2896
      • C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
        "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe" n1096
        2⤵
          PID:320
        • C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
          "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe" n1096
          2⤵
            PID:1628
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1352
        • C:\Windows\system32\wbengine.exe
          "C:\Windows\system32\wbengine.exe"
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2612
        • C:\Windows\System32\vdsldr.exe
          C:\Windows\System32\vdsldr.exe -Embedding
          1⤵
            PID:2136
          • C:\Windows\System32\vds.exe
            C:\Windows\System32\vds.exe
            1⤵
              PID:1984

            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

              a0db2b736f236b31cb5d6c027f78da78

              SHA1

              9e02b24c00bf47ee0fd2c1f9aab712e53b6baf98

              SHA256

              4623a48d0fbaea158c3735136bf94762ab0c915fb2d129f8542e98a1d23366f1

              SHA512

              ee2a0ff3509fa0a75b1bd1b363ef6e2103428fa057597c6baeda81e29c9bb0d0b5356e9b464692d74687442b59cdea0d4a8d92484a07cc47220845b8fa88df6d

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

              344B

              MD5

              29f589ab4b9aa0254f1f6ed31a7875be

              SHA1

              14abde346f1759f0754ebc20ee09fcc9a084a5ba

              SHA256

              c172b0c36dcdad3e4fcbffe2bfd392568d74ab68935cff55a78fba35723848de

              SHA512

              af12111b728d3a3a87cc4e78b539403d5eea9da516df838de314bdc54201e8c2080ff4a60271cf351005c30badea39e6874919f5cff41fcb161a81713be934e2

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            • C:\Users\Admin\AppData\Local\Temp\Cab235B.tmp
              Filesize

              65KB

              MD5

              ac05d27423a85adc1622c714f2cb6184

              SHA1

              b0fe2b1abddb97837ea0195be70ab2ff14d43198

              SHA256

              c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

              SHA512

              6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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            • C:\Users\Admin\AppData\Local\Temp\Tar2429.tmp
              Filesize

              171KB

              MD5

              9c0c641c06238516f27941aa1166d427

              SHA1

              64cd549fb8cf014fcd9312aa7a5b023847b6c977

              SHA256

              4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

              SHA512

              936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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