Overview

overview

10

Static

static

10

9cb76090b7...e1.exe

windows7-x64

10

9cb76090b7...e1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 01:32

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General

  • Target
    9cb76090b74457b23fd3daf8af4793510cb94a970046de0ea4d3bb05527ba2e1.exe
  • Size 147KB
  • Sample240507-bx17yscd4v
  • SHA256 9cb76090b74457b23fd3daf8af4793510cb94a970046de0ea4d3bb05527ba2e1
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
ransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\bQ8ODxIi2.README.txt

Ransom Note
  • ~~~ AlphaCat ~~~ >>>> Your data are stolen and encrypted >>>> What guarantees that we will not deceive you? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. Life is too short to be sad. Be not sad, money, it is only paper. If we do not give you decrypters, or we do not delete your data after payment, then nobody will pay us in the future. Therefore to us our reputation is very important. We attack worldwide and there is no dissatisfied victim after payment. >>>> You need contact us via email with srenshot of btc transaction and your personal DECRYPTION ID Contact via Email with your personal Decryption id !: [email protected] Send 400$ (0.006 BTC) at this address --> bc1qkr7wxuqwet9w6920vk94p7npkxh33fc7prv55q >>>> Your personal DECRYPTION ID: D53F15BF767167BCBFBBAC9CAD92688B >>>> Warning! Do not DELETE or MODIFY any files, it can lead to recovery problems! >>>> Warning! If you do not pay the ransom we will attack repeatedly again!

Signatures

  • Renames multiple (608) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 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) 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9cb76090b74457b23fd3daf8af4793510cb94a970046de0ea4d3bb05527ba2e1.exe
    "C:\Users\Admin\AppData\Local\Temp\9cb76090b74457b23fd3daf8af4793510cb94a970046de0ea4d3bb05527ba2e1.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4356
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:1204
    • C:\ProgramData\6C96.tmp
      "C:\ProgramData\6C96.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:392
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\6C96.tmp >> NUL
        3⤵
          PID:4216
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:4116
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:4344
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{F06C922B-2FC7-4131-BB39-EE6FCFAC7469}.xps" 133595191430960000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:3060

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            CCCCCCCCCCC
            • Path C:\$Recycle.Bin\S-1-5-21-2860750803-256193626-1801997576-1000\CCCCCCCCCCC
            • Size 129B
            • SHA256 983e5437dc6b682de1419e1dac29fbd7ba22298e9e04344a85e2cce2e3f6e8e9
            • MD5 SHA1 SHA512
            Submit Download

            6C96.tmp
            • Path C:\ProgramData\6C96.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
            • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
            • Size 147KB
            • SHA256 3ce849c51b257a491bea6cb1729fb513e0dc35b911281e4b9dd381ea4006e4f1
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            Open Notebook.onetoc2
            • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
            • Size 4KB
            • SHA256 34bf9a325df7faeb721ef815646c9dac901020f9fcd4cfe85cd20aaf57644357
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            bQ8ODxIi2.README.txt
            • Path C:\bQ8ODxIi2.README.txt
            • Size 1KB
            • SHA256 f7b66eeae4d3211a0aa4e215c70ba0e1ca33fa3e2aa2edc9e14438dc2140b605
            • MD5 SHA1 SHA512
            Submit Download

            EEEEEEEEEEE
            • Path F:\$RECYCLE.BIN\S-1-5-21-2860750803-256193626-1801997576-1000\EEEEEEEEEEE
            • Size 129B
            • SHA256 0c5a930742c8aaa571c459a3e196f3fef1cd7a73bd9327d70c6ab6d7e12a42ed
            • MD5 SHA1 SHA512
            Submit Download

            memory/3060-2801-0x00007FF870890000-0x00007FF8708A0000-memory.dmp
            Download

            memory/3060-2804-0x00007FF870890000-0x00007FF8708A0000-memory.dmp
            Download

            memory/3060-2803-0x00007FF870890000-0x00007FF8708A0000-memory.dmp
            Download

            memory/3060-2805-0x00007FF870890000-0x00007FF8708A0000-memory.dmp
            Download

            memory/3060-2806-0x00007FF870890000-0x00007FF8708A0000-memory.dmp
            Download

            memory/3060-2835-0x00007FF86DF30000-0x00007FF86DF40000-memory.dmp
            Download

            memory/3060-2836-0x00007FF86DF30000-0x00007FF86DF40000-memory.dmp
            Download

            memory/4356-1-0x00000000013E0000-0x00000000013F0000-memory.dmp
            Download

            memory/4356-2-0x00000000013E0000-0x00000000013F0000-memory.dmp
            Download

            memory/4356-0-0x00000000013E0000-0x00000000013F0000-memory.dmp
            Download