Resubmissions

19-10-2021 14:03

211019-rcwpqsfhg4 10

19-10-2021 13:56

211019-q8vxmsfhf4 10

15-10-2021 16:42

211015-t719tabbe4 10

Analysis

  • max time kernel
    122s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    19-10-2021 14:03

General

  • Target

    4339192e184bea89107928ccd5bcc1f5d4a928922361ab3f999926f74a0f6512.exe

  • Size

    42KB

  • MD5

    d29a5ac669fd239a2df8a7ba6bad4b75

  • SHA1

    b18e00d53474c95fa0720b1720557e4d9a09f161

  • SHA256

    4339192e184bea89107928ccd5bcc1f5d4a928922361ab3f999926f74a0f6512

  • SHA512

    c1e104375d445d7431fd68d0cb6731e459aa0be5b8495bcdca147d0052aa18e4a1f0817d54e2b72489cc9668772c36d6243f716cf542d48a3514f4fb3060a7b6

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\675896595\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: makopransom@outlook.com .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

makopransom@outlook.com

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 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4339192e184bea89107928ccd5bcc1f5d4a928922361ab3f999926f74a0f6512.exe
    "C:\Users\Admin\AppData\Local\Temp\4339192e184bea89107928ccd5bcc1f5d4a928922361ab3f999926f74a0f6512.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1572
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1136
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:976
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1628
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
      2⤵
        PID:1508
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1164
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1744
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1092
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:1076

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Command-Line Interface

        1
        T1059

        Defense Evasion

        File Deletion

        3
        T1107

        Install Root Certificate

        1
        T1130

        Modify Registry

        1
        T1112

        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\Desktop\readme-warning.txt
          MD5

          fedc6e4006fbfceb0967ddf88f1ad348

          SHA1

          4d94294e5c2918e410502ebd6cf71e0b4dbdd6e6

          SHA256

          f5ffb8388a3b741156957f0b7e45321ed41a847880e44b4a9eac28a60001517a

          SHA512

          640fbb4be0b2aa88a295980c92f1d802ce4e39fdb40393370b21606c3517620e64ebb62dd5ee2e8c694935d6e89e5224d510752a621a748c654b75f509b93a6a

        • memory/976-56-0x0000000000000000-mapping.dmp
        • memory/976-57-0x000007FEFB891000-0x000007FEFB893000-memory.dmp
          Filesize

          8KB

        • memory/1136-55-0x0000000000000000-mapping.dmp
        • memory/1508-59-0x0000000000000000-mapping.dmp
        • memory/1572-54-0x0000000000000000-mapping.dmp
        • memory/1628-58-0x0000000000000000-mapping.dmp
        • memory/1836-53-0x0000000075BF1000-0x0000000075BF3000-memory.dmp
          Filesize

          8KB