Overview

overview

10

Static

static

10

3757824893...f7.exe

windows7-x64

10

3757824893...f7.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    124s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-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:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-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
  • 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
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • 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
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:328
    • C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe
      "C:\Users\Admin\AppData\Local\Temp\3757824893405fd34313749b689879b40b02db3d8a682f9f88e23f63908881f7.exe" n328
      2⤵
        PID:1728
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1076
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1496
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1756
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1320
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1484
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:392
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1640
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:1444

        Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        • C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\readme-warning.txt
          Filesize

          1KB

          MD5

          a0db2b736f236b31cb5d6c027f78da78

          SHA1

          9e02b24c00bf47ee0fd2c1f9aab712e53b6baf98

          SHA256

          4623a48d0fbaea158c3735136bf94762ab0c915fb2d129f8542e98a1d23366f1

          SHA512

          ee2a0ff3509fa0a75b1bd1b363ef6e2103428fa057597c6baeda81e29c9bb0d0b5356e9b464692d74687442b59cdea0d4a8d92484a07cc47220845b8fa88df6d

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