Analysis

  • max time kernel
    124s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    03-05-2022 14:59

General

  • Target

    ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe

  • Size

    121KB

  • MD5

    2a1eba690d97ef43558414530e7d2dac

  • SHA1

    48b6a01525f745c863d8302339340528a9f44775

  • SHA256

    ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea

  • SHA512

    29b663f495a051ed614375caeeb3b8284df620f6460f451a72af68d35413326a31243300aef8854a60531ab7c8c240d74fb2cd0e32928c0f0bbef0e2b9447280

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\1798133593\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] 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.

  • 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 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 2 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe
    "C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe
      "C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe"
      2⤵
      • Modifies extensions of user files
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:928
      • C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe
        "C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe" n928
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1900
        • C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe
          "C:\Users\Admin\AppData\Local\Temp\ebdc5309aeef56b4bb2ffc14ac4fd618ffaae294e633099532a20992908ab4ea.exe" n928
          4⤵
            PID:1904
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1044
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:2000
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            4⤵
            • Deletes backup catalog
            PID:976
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1644
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1984
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1064
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:268
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:1820

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\43121591

          Filesize

          63KB

          MD5

          0da2cefb3f8aa7d6c28e8b9d408c1dbf

          SHA1

          3c1fc52c9ba09a50dfff86584860e1d11a12631b

          SHA256

          7d7f829c85d22b9976bdf83fdd12fab10a8fcb71757907f52e4b36df1882600c

          SHA512

          946883261b6be19070da9b0de21a8b11d1f1d01d54a09b09589dae9521f508a4a1723aa91936451ed47f209b29f82bc53ca646dfe77ab2795166e63f1a07c00e

        • C:\Users\Admin\AppData\Roaming\43121591

          Filesize

          64KB

          MD5

          83f5f862e83f21f1c5c6818632596290

          SHA1

          338f6207ab406ad7e39bbea80980e3ab417e3492

          SHA256

          497a7e714a7f38c595ae56aa17654defbc329e771428a08df23e7a8f543ae80f

          SHA512

          e8985fc6cb356c2464e111267ee07661a714d28a4abad73819b3bfd266a1077019880da72f3d1605e4fbaa9959da8fd53471c487b27f6a216750887e685a1ddb

        • \Users\Admin\AppData\Local\Temp\nst5218.tmp\System.dll

          Filesize

          11KB

          MD5

          fccff8cb7a1067e23fd2e2b63971a8e1

          SHA1

          30e2a9e137c1223a78a0f7b0bf96a1c361976d91

          SHA256

          6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

          SHA512

          f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

        • \Users\Admin\AppData\Local\Temp\nstFB90.tmp\System.dll

          Filesize

          11KB

          MD5

          fccff8cb7a1067e23fd2e2b63971a8e1

          SHA1

          30e2a9e137c1223a78a0f7b0bf96a1c361976d91

          SHA256

          6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

          SHA512

          f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

        • memory/976-63-0x000007FEFC4D1000-0x000007FEFC4D3000-memory.dmp

          Filesize

          8KB

        • memory/1904-54-0x00000000763B1000-0x00000000763B3000-memory.dmp

          Filesize

          8KB