Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-01-2021 02:04

General

  • Target

    c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe

  • Size

    262KB

  • MD5

    53e7b9e873404afdd22cdeba41b4e1c9

  • SHA1

    18b1a19f826e9d48d5776f6e3c279547f3ff517d

  • SHA256

    c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec

  • SHA512

    ccc0af85ea847c45d11e213030e6b3224503c22fe70519049095b1d84cbf61e50c72ab370a03e456338127b52d462826248a6413706ab900afac16adf1deb9dd

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 "moloch" 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] or [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.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies Installed Components in the registry 2 TTPs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 17739 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 16 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies Control Panel 5 IoCs
  • Modifies registry class 30 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 87 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:508
    • C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe
      "C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3260
      • C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe
        "C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe" n3260
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:192
        • C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe
          "C:\Users\Admin\AppData\Local\Temp\c34d0660da24b48480de58aaa394bd27f5a5b1ed9249d897ca4dde70312a87ec.bin.exe" n3260
          4⤵
            PID:1372
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3832
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:2876
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            4⤵
            • Deletes backup catalog
            PID:800
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2604
    • \??\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:2740
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:484
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3856
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:3024
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:416
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3008 -s 1040
        1⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:980
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Control Panel
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3220
      • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
        1⤵
        • Enumerates system info in registry
        • Modifies Control Panel
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:1840
      • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
        "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
        1⤵
        • Modifies Control Panel
        • Suspicious use of SetWindowsHookEx
        PID:3720

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/980-19-0x000001EF5A830000-0x000001EF5A831000-memory.dmp

        Filesize

        4KB

      • memory/980-18-0x000001EF5A830000-0x000001EF5A831000-memory.dmp

        Filesize

        4KB

      • memory/3260-5-0x0000000000400000-0x000000000041E000-memory.dmp

        Filesize

        120KB

      • memory/3260-3-0x0000000000400000-0x000000000041E000-memory.dmp

        Filesize

        120KB