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Overview

overview

10

Static

static

10

3138f8369a...c1.exe

windows7-x64

10

3138f8369a...c1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 17:08

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General

  • Target

    3138f8369ad54442f46d786bde4ebf38a18e93b05fe8acf34f537129e41270c1.exe

  • Size

    42KB

  • MD5

    00d684cb99990cb945126dcfbec26a8b

  • SHA1

    fad3d5bb25b763f5e5ef5e12489ca4337bf5242c

  • SHA256

    3138f8369ad54442f46d786bde4ebf38a18e93b05fe8acf34f537129e41270c1

  • SHA512

    643ed41c1d656c6a7fb964c018862698dcd7cc1a2fd23fd9bcc2f1d91e8678e61e02a4db103998854a5d1177f15d8630aa812ace23d03f6f4b610bb126bcd02e

  • SSDEEP

    768:tO1oR/IVS1RzK4wbs+D/SIJX+ZZ1SQQwZuIOPzDZVgoelP54qWk:tkS1FKnDtkuImYom2qWk

Score
10/10
ransomware

Malware Config

Extracted

Path

C:\Program Files\Common Files\DESIGNER\+README-WARNING+.txt

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. 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 us. .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

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (3358) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\3138f8369ad54442f46d786bde4ebf38a18e93b05fe8acf34f537129e41270c1.exe
    "C:\Users\Admin\AppData\Local\Temp\3138f8369ad54442f46d786bde4ebf38a18e93b05fe8acf34f537129e41270c1.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3864
    • C:\Users\Admin\AppData\Local\Temp\3138f8369ad54442f46d786bde4ebf38a18e93b05fe8acf34f537129e41270c1.exe
      "C:\Users\Admin\AppData\Local\Temp\3138f8369ad54442f46d786bde4ebf38a18e93b05fe8acf34f537129e41270c1.exe" n3864
      2⤵
        PID:1280
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1620
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1456
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:3528
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2428
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2228
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4744
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2880
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:5052
      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
        1⤵
        • Drops file in System32 directory
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        • Suspicious use of SetWindowsHookEx
        PID:3632

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files\Common Files\DESIGNER\+README-WARNING+.txt
        Filesize

        1KB

        MD5

        765c08e68f08958f5a2444c6d94f59c1

        SHA1

        b48816e3570e69d46a638c9f9578f888181eab72

        SHA256

        fef00c18a12708b230374275f83e371a6bfae2f53d54af917e4cdb0bbe587d67

        SHA512

        aa78ad0ba94df76f2d706e74d7df05eb9328aa803fdc5f1a53b0b7f705c1c27d42a3e464946724b84c268d0e071828de31941ab5dcc824692a686019119bf68f

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