Overview

overview

10

Static

static

10

FREENITRO V1.exe

windows7-x64

10

FREENITRO V1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 18:17

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General

  • Target

    FREENITRO V1.exe

  • Size

    114KB

  • MD5

    cc3870b55eb1372465d209f2f8cef7db

  • SHA1

    1de3efe840669876905143be9f2cb031441bb801

  • SHA256

    a5051d78658678877bc45dc86a93da4b38f751af50b6e16028df2e9d28a38fd6

  • SHA512

    bafaf8f60c440e7c75cad29832ff3d8a67310cac231fb74cbc3689155471bfa71302ddd6e10cc39dafe97d82d2e39c15509a107da0d882e9315cbb04d2f45f6d

  • SSDEEP

    3072:PoMUVMKr9GL2oAxIetzFDyHQlYBX2UZHqJEumjS48zCTFsj:ipr9GL2o05yIYBBZKDmGr

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\UNLOCK READ.txt

Ransom Note
All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $170. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.003 BTC Bitcoin Address: bc1qsn8l9fjycnlx07fddkyp6wpsddey04jg6ffrk5 ANY CONTACT TELEGRAM @WILLIAM07100

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 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\FREENITRO V1.exe
    "C:\Users\Admin\AppData\Local\Temp\FREENITRO V1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Users\Admin\AppData\Roaming\freenitro.exe
      "C:\Users\Admin\AppData\Roaming\freenitro.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2616
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4268
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3240
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3100
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4892
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1540
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2396
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4052
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\UNLOCK READ.txt
        3⤵
          PID:668
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4368
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4888
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1060
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:1152
      • C:\Windows\system32\OpenWith.exe
        C:\Windows\system32\OpenWith.exe -Embedding
        1⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2304
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\UNLOCK READ.txt
        1⤵
          PID:3660

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\freenitro.exe
          Filesize

          114KB

          MD5

          cc3870b55eb1372465d209f2f8cef7db

          SHA1

          1de3efe840669876905143be9f2cb031441bb801

          SHA256

          a5051d78658678877bc45dc86a93da4b38f751af50b6e16028df2e9d28a38fd6

          SHA512

          bafaf8f60c440e7c75cad29832ff3d8a67310cac231fb74cbc3689155471bfa71302ddd6e10cc39dafe97d82d2e39c15509a107da0d882e9315cbb04d2f45f6d

          Download Submit

        • C:\Users\Admin\Documents\UNLOCK READ.txt
          Filesize

          913B

          MD5

          3164d77037fdb424d1fe771628400f37

          SHA1

          1f6e7fa6c134bae7090c66231e68ce3053fce807

          SHA256

          a1bfedd2a278648fbb16af461b90606879e7b4708aadbb81db911dbf90a1ec8b

          SHA512

          31bfc351b994c0e841f9f53f61a1f62321f9c2c733b768b8ac31c1b8af0ba77d7c2d1cb649f2976206938425b1cc770c4eb178d9846c56f7e362cc5034aa287c

          Download Submit

        • memory/2616-14-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/2616-22-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/2616-471-0x00007FFE83650000-0x00007FFE84111000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/3772-0-0x00000000005C0000-0x00000000005E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/3772-1-0x00007FFE83653000-0x00007FFE83655000-memory.dmp

          Filesize

          8KB

          Download