Analysis

  • max time kernel
    124s
  • max time network
    96s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    28-07-2020 05:47

General

  • Target

    _______200728(_____ __ __ ________ ________).exe

  • Size

    142KB

  • MD5

    88e86bec16a339b6eb5ede18f383ffd9

  • SHA1

    91e79df0e7b60a9f58f068f5eacb1e1b32419e40

  • SHA256

    801384c781c364acdc61e60e5b120359cb4617a42da8155123f3a0381a56495a

  • SHA512

    3cd8291b6ed8ed94b3c523ef43fd31b155f62547dadf2d4810d06696af5e616aa5f454dd3a0cfa9ff6025890dcd4998966a539257158f43da764b7ff767dfd93

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\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: akzhq725@tutanota.com or akzhq725@cock.li .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.
Emails

akzhq725@tutanota.com

akzhq725@cock.li

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Drops file in Program Files directory 17736 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Deletes system backup catalog 2 TTPs

    Ransomware often tries to delete backup files to inhibit system recovery.

  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies service 2 TTPs 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\_______200728(_____ __ __ ________ ________).exe
    "C:\Users\Admin\AppData\Local\Temp\_______200728(_____ __ __ ________ ________).exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    • Modifies extensions of user files
    • Suspicious behavior: EnumeratesProcesses
    PID:4040
    • C:\Users\Admin\AppData\Local\Temp\_______200728(_____ __ __ ________ ________).exe
      "C:\Users\Admin\AppData\Local\Temp\_______200728(_____ __ __ ________ ________).exe" n4040
      2⤵
        PID:576
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:900
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:376
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1644
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2672
      • C:\Users\Admin\AppData\Local\Temp\_______200728(_____ __ __ ________ ________).exe
        "C:\Users\Admin\AppData\Local\Temp\_______200728(_____ __ __ ________ ________).exe" n4040
        2⤵
          PID:2776
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s seclogon
        1⤵
        • Suspicious use of WriteProcessMemory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        PID:3016
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Modifies service
        PID:1112
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1880
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:2140
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:2296

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Command-Line Interface

        1
        T1059

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Modify Existing Service

        1
        T1031

        Defense Evasion

        Modify Registry

        2
        T1112

        File Deletion

        4
        T1107

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        1
        T1012

        Peripheral Device Discovery

        1
        T1120

        System Information Discovery

        1
        T1082

        Collection

        Data from Local System

        1
        T1005

        Command and Control

        Web Service

        1
        T1102

        Impact

        Inhibit System Recovery

        4
        T1490

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/376-4-0x0000000000000000-mapping.dmp
        • memory/576-2-0x0000000000000000-mapping.dmp
        • memory/576-5-0x000000000342B000-0x000000000342D000-memory.dmp
          Filesize

          8KB

        • memory/576-6-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
          Filesize

          4KB

        • memory/900-3-0x0000000000000000-mapping.dmp
        • memory/1644-7-0x0000000000000000-mapping.dmp
        • memory/2672-8-0x0000000000000000-mapping.dmp
        • memory/2776-10-0x0000000000000000-mapping.dmp
        • memory/2776-11-0x000000000344C000-0x000000000344D000-memory.dmp
          Filesize

          4KB

        • memory/2776-12-0x0000000004F00000-0x0000000004F01000-memory.dmp
          Filesize

          4KB

        • memory/4040-0-0x00000000034B6000-0x00000000034B7000-memory.dmp
          Filesize

          4KB

        • memory/4040-1-0x00000000051F0000-0x00000000051F1000-memory.dmp
          Filesize

          4KB