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Overview

overview

10

Static

static

10

ee7fa7fb71...eb.exe

windows7-x64

10

ee7fa7fb71...eb.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    139s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    03/02/2024, 17:14

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General

  • Target

    ee7fa7fb7150d26c98b2e0f49dbf7cc29c3dcd647a4bc081f982292085978aeb.exe

  • Size

    42KB

  • MD5

    f3049a990188c25ec80626c4475521dd

  • SHA1

    7c697f2c2dfa1f92bf8d51e2f17ed41fac9366e3

  • SHA256

    ee7fa7fb7150d26c98b2e0f49dbf7cc29c3dcd647a4bc081f982292085978aeb

  • SHA512

    8caf5e5098079b0331ccd10f89bdd9e70c60f70fac41327bdfb121f6e09f3a298f9abc073258fbbf00822c2556c7aa0d4dd124b6099728d4dd24d7d38cbb5eec

  • SSDEEP

    768:gO1oR/lVS1RzK4wbs+D/SIJX+ZZ1SQQwZuIOPzDEimA7tgA3WKi:gzS1FKnDtkuIm4ABPWD

Score
10/10
ransomware

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\+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 (2995) 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 Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 13 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\ee7fa7fb7150d26c98b2e0f49dbf7cc29c3dcd647a4bc081f982292085978aeb.exe
    "C:\Users\Admin\AppData\Local\Temp\ee7fa7fb7150d26c98b2e0f49dbf7cc29c3dcd647a4bc081f982292085978aeb.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Users\Admin\AppData\Local\Temp\ee7fa7fb7150d26c98b2e0f49dbf7cc29c3dcd647a4bc081f982292085978aeb.exe
      "C:\Users\Admin\AppData\Local\Temp\ee7fa7fb7150d26c98b2e0f49dbf7cc29c3dcd647a4bc081f982292085978aeb.exe" n2084
      2⤵
        PID:2088
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2792
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2284
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2596
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2888
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2824
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3044
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2548
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:2872
        • C:\Windows\system32\Dwm.exe
          "C:\Windows\system32\Dwm.exe"
          1⤵
            PID:2388

          Network

          MITRE ATT&CK Enterprise v15

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          Downloads

          • C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\+README-WARNING+.txt
            Filesize

            1KB

            MD5

            1153e4686b08b07f2cdfb9f92d4f5f3c

            SHA1

            c41e34fe5cd89e15facbcf30793667359b1bb34f

            SHA256

            b637f87fab2337156ffd729db35507f9ce35d5c356ee9f2e10b3d4076fbb033a

            SHA512

            1a26340b5717aef543383d210d6929c639b6e6cec30b2afb1698197a6ab0940002f6afa8f11168b0bbf94bd4b86b920ff20f3a722b3873cca447c3e17ef31440

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