Overview

overview

10

Static

static

f8a505c194...f3.exe

windows7_x64

10

f8a505c194...f3.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    08/07/2020, 10:30

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General

  • Target
    f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe
  • Size 219KB
  • Sample200708-7b96nnhtp6
  • SHA256 f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3
  • MD5 SHA1 SHA512
Score
10/10
ransomwarespywarepersistencemakop

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Local\Temp\readme-warning.txt

  • 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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Adds Run entry to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in Program Files directory 17754 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Deletes system backup catalog 2 TTPs

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

    ransomware
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe
    "C:\Users\Admin\AppData\Local\Temp\f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Adds Run entry to start application
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Local\Temp\f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe
      "C:\Users\Admin\AppData\Local\Temp\f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe" n2416
      2⤵
        PID:2680
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2796
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3704
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:1992
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:496
      • C:\Users\Admin\AppData\Local\Temp\f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe
        "C:\Users\Admin\AppData\Local\Temp\f8a505c194572963b8defea169a2bf9b7e87ba2a38df1afb990623715a81daf3.exe" n2416
        2⤵
          PID:1992
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s seclogon
        1⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2480
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Modifies service
        PID:3592
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3040
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:3936
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:4024

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              memory/1992-19-0x00000000032C4000-0x00000000032C5000-memory.dmp
              Download

              memory/1992-20-0x0000000003650000-0x0000000003651000-memory.dmp
              Download

              memory/2416-0-0x0000000003511000-0x0000000003512000-memory.dmp
              Download

              memory/2416-1-0x0000000003600000-0x0000000003601000-memory.dmp
              Download

              memory/2680-5-0x00000000033C4000-0x00000000033C5000-memory.dmp
              Download

              memory/2680-6-0x0000000003560000-0x0000000003561000-memory.dmp
              Download