Resubmissions

09-03-2023 20:01

230309-yrrgwsbf7v 10

22-12-2020 13:17

201222-wsc3nmern2 10

Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22-12-2020 13:17

General

  • Target

    f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe

  • Size

    117KB

  • MD5

    f64ecdec4c84ac7ef0ca6c2ef4d94eea

  • SHA1

    7c88af3c8a27402da1d67cfaa1a02555f1c7945d

  • SHA256

    fc257f64a0279bb5ae221b968d3f38bbb7237a8475c165c5a8430fe6633e3fe6

  • SHA512

    87b8a1c6098a67a6a7f61e154deba8c16a5b421e5157183b40f808c23187ec46e046d7f4ac006d375fcf66000da7da588c9105f9acba5471604255d15c1ac8f7

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: akzhq1010@tutanota.com or akzhq1010@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

akzhq1010@tutanota.com

akzhq1010@cock.li

Signatures

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

  • 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 extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Loads dropped DLL 3 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe
    "C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe
      "C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe"
      2⤵
      • Modifies extensions of user files
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe
        "C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe" n1224
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1588
        • C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe
          "C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe" n1224
          4⤵
            PID:1088
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:324
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            4⤵
            • Deletes backup catalog
            PID:1052
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1616
        • C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe
          "C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe" n1224
          3⤵
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:556
          • C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe
            "C:\Users\Admin\AppData\Local\Temp\f64ecdec4c84ac7ef0ca6c2ef4d94eea.exe" n1224
            4⤵
              PID:1168
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:784
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:560
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:1808
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
            PID:1388

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Execution

          Command-Line Interface

          1
          T1059

          Persistence

          Registry Run Keys / Startup Folder

          1
          T1060

          Defense Evasion

          File Deletion

          3
          T1107

          Modify Registry

          2
          T1112

          Install Root Certificate

          1
          T1130

          Credential Access

          Credentials in Files

          1
          T1081

          Discovery

          System Information Discovery

          1
          T1082

          Collection

          Data from Local System

          1
          T1005

          Command and Control

          Web Service

          1
          T1102

          Impact

          Inhibit System Recovery

          3
          T1490

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Roaming\972313772
            MD5

            0dae339e0503a35eaa156e084f82d0a2

            SHA1

            276b97b0bdafb3d64a8ebb48eb137b3da621ec6b

            SHA256

            b88aeddacafbf19a7ae81b720b7911fd788f3ebc03e9b90782077caadaca2720

            SHA512

            8ec78d45f591e89ef0be9e05d5a9af7c4ffc25f6cde8c4b79bb1bb888b6d52fa499c4f52f0963a82e3b7b3ea0fcec997c6a0d488234a276b65779de63fac1555

          • C:\Users\Admin\AppData\Roaming\972313772
            MD5

            18668c3a11b0458f86330e6063869484

            SHA1

            701d1f5075dc9b124811c972a6e5d566988394be

            SHA256

            a00de16ae3484951fb5cf4ee7f1893f950b9c91e559edd70d0f627235d4d8a12

            SHA512

            d5ae285abc59758ec0bbb080aa796f32b0ffe59ee948355b54f45ecb5dc96080bc40e0cdd0095cad05903b53d6ec56dd4ac089ddc14f942632421c3363dcb92c

          • \Users\Admin\AppData\Local\Temp\nsi627B.tmp\System.dll
            MD5

            fccff8cb7a1067e23fd2e2b63971a8e1

            SHA1

            30e2a9e137c1223a78a0f7b0bf96a1c361976d91

            SHA256

            6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

            SHA512

            f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

          • \Users\Admin\AppData\Local\Temp\nsn7CEE.tmp\System.dll
            MD5

            fccff8cb7a1067e23fd2e2b63971a8e1

            SHA1

            30e2a9e137c1223a78a0f7b0bf96a1c361976d91

            SHA256

            6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

            SHA512

            f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

          • \Users\Admin\AppData\Local\Temp\nsx5B5A.tmp\System.dll
            MD5

            fccff8cb7a1067e23fd2e2b63971a8e1

            SHA1

            30e2a9e137c1223a78a0f7b0bf96a1c361976d91

            SHA256

            6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

            SHA512

            f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

          • memory/324-7-0x0000000000000000-mapping.dmp
          • memory/1052-10-0x0000000000000000-mapping.dmp
          • memory/1088-13-0x00000000004059A0-mapping.dmp
          • memory/1168-20-0x00000000004059A0-mapping.dmp
          • memory/1224-5-0x0000000000400000-0x000000000041F000-memory.dmp
            Filesize

            124KB

          • memory/1224-4-0x00000000004059A0-mapping.dmp
          • memory/1224-3-0x0000000000400000-0x000000000041F000-memory.dmp
            Filesize

            124KB

          • memory/1616-11-0x0000000000000000-mapping.dmp
          • memory/1636-17-0x000007FEF5B70000-0x000007FEF5DEA000-memory.dmp
            Filesize

            2.5MB

          • memory/1652-6-0x0000000000000000-mapping.dmp