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Overview

overview

10

Static

static

10

3757824893...f7.exe

windows7-x64

10

3757824893...f7.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2023, 02:20

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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:\Program Files\7-Zip\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
  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in Program Files directory 64 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 8 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
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
      "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe" n4764
      2⤵
        PID:1524
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4120
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:4828
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:112
      • C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
        "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe" n4764
        2⤵
          PID:768
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1800
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1848
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:2424
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:3340

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Program Files\7-Zip\readme-warning.txt
          Filesize

          1KB

          MD5

          a0db2b736f236b31cb5d6c027f78da78

          SHA1

          9e02b24c00bf47ee0fd2c1f9aab712e53b6baf98

          SHA256

          4623a48d0fbaea158c3735136bf94762ab0c915fb2d129f8542e98a1d23366f1

          SHA512

          ee2a0ff3509fa0a75b1bd1b363ef6e2103428fa057597c6baeda81e29c9bb0d0b5356e9b464692d74687442b59cdea0d4a8d92484a07cc47220845b8fa88df6d

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