Analysis

  • max time kernel
    154s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 10:46

General

  • Target
    VirusShare_248d88b4e968eec216ac3c06550522a1.exe
  • Size 332KB
  • Sample240610-mt1ykagg54
  • SHA256 df4d8bdc2be2de41b265d510744c2083c883c087ce2ea45507b55834be2a27aa
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\PerfLogs\Recovery+fuysv.txt

Ransom Note
  • __!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#! NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://ytrest84y5i456hghadefdsd.pontogrot.com/C162B1E763183FAD 2. http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/C162B1E763183FAD 3. http://5rport45vcdef345adfkksawe.bematvocal.at/C162B1E763183FAD If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/C162B1E763183FAD 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://ytrest84y5i456hghadefdsd.pontogrot.com/C162B1E763183FAD http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/C162B1E763183FAD http://5rport45vcdef345adfkksawe.bematvocal.at/C162B1E763183FAD *-*-* Your personal page Tor-Browser: fwgrhsao3aoml7ej.ONION/C162B1E763183FAD *-*-* Your personal identification ID: C162B1E763183FAD
URLs
  • http://ytrest84y5i456hghadefdsd.pontogrot.com/C162B1E763183FAD

  • http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/C162B1E763183FAD

  • http://5rport45vcdef345adfkksawe.bematvocal.at/C162B1E763183FAD

  • http://fwgrhsao3aoml7ej.onion/C162B1E763183FAD

  • http://fwgrhsao3aoml7ej.ONION/C162B1E763183FAD

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (870) files with added filename extension

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 6 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 2 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare_248d88b4e968eec216ac3c06550522a1.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusShare_248d88b4e968eec216ac3c06550522a1.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Windows\alimbvcejpko.exe
      C:\Windows\alimbvcejpko.exe
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:2772
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4428
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\RECOVERY.TXT
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:2776
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\RECOVERY.HTM
        3⤵
          PID:4588
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\VIRUSS~1.EXE
        2⤵
          PID:4076
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3524
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4048 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4820
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=18 --mojo-platform-channel-handle=3688 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
          1⤵
            PID:4504
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=19 --mojo-platform-channel-handle=3876 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
            1⤵
              PID:2472
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5412 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
              1⤵
                PID:1108
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --mojo-platform-channel-handle=5436 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:1
                1⤵
                  PID:4000

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      Recovery+fuysv.html

                      • Path C:\PerfLogs\Recovery+fuysv.html
                      • Size 9KB
                      • SHA256 b6f6dbf4b6f89e22e405465de0e8134ed25b7852fcee61e298110ffc0bd46223
                      • MD5 SHA1 SHA512 SSDEEP

                      Recovery+fuysv.png

                      • Path C:\PerfLogs\Recovery+fuysv.png
                      • Size 69KB
                      • SHA256 1032cf6a7708f02f365c8e62f482265ca3fbc1c0079b16cde112e5a4285ab19e
                      • MD5 SHA1 SHA512 SSDEEP

                      Recovery+fuysv.txt

                      • Path C:\PerfLogs\Recovery+fuysv.txt
                      • Size 2KB
                      • SHA256 d9131e4d24efbc0ad2ea75eabbe283db5b5c121f7b266ddb821796ed6ca06244
                      • MD5 SHA1 SHA512

                      THIRDPARTYLICENSEREADME-JAVAFX.txt

                      • Path C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt
                      • Size 560B
                      • SHA256 d2bdb1ab32ba7572ce3cc72d44b1a9221ef0c49d738613c8f0382d6df414500d
                      • MD5 SHA1 SHA512

                      THIRDPARTYLICENSEREADME.txt

                      • Path C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME.txt
                      • Size 560B
                      • SHA256 9f718c3351fab24e4370b813293f50ca8cbeb520b0852db0163bccf00aa0021c
                      • MD5 SHA1 SHA512

                      ClientSub2019_eula.txt

                      • Path C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub2019_eula.txt
                      • Size 416B
                      • SHA256 bdc3a8445967831d5a0d7692ce98dbe759c312d8c32f4eb60e3deebe9ab2da5f
                      • MD5 SHA1 SHA512

                      AppCache133534305838784240.txt

                      • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133534305838784240.txt
                      • Size 77KB
                      • SHA256 f436c5d945b4178e7f1161703bb17ee95d3419d46e13bea01013c45406490855
                      • MD5 SHA1 SHA512 SSDEEP

                      AppCache133534325129811261.txt

                      • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133534325129811261.txt
                      • Size 74KB
                      • SHA256 adb646fe6c328e4e0565fc2d467e16145929a3785b82b00c8ec4bc0e2c22bfc6
                      • MD5 SHA1 SHA512 SSDEEP

                      alimbvcejpko.exe

                      • Path C:\Windows\alimbvcejpko.exe
                      • Size 332KB
                      • SHA256 df4d8bdc2be2de41b265d510744c2083c883c087ce2ea45507b55834be2a27aa
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/2772-322-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-7163-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-601-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-602-0x0000000002130000-0x00000000021B6000-memory.dmp

                      memory/2772-922-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-10372-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-10364-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-9981-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-1177-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-1735-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-2638-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-3782-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-5368-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-8829-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/2772-9-0x0000000002130000-0x00000000021B6000-memory.dmp

                      memory/4060-1-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/4060-14-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/4060-32-0x0000000000400000-0x0000000000496000-memory.dmp

                      memory/4060-33-0x0000000002280000-0x0000000002306000-memory.dmp

                      memory/4060-0-0x0000000002280000-0x0000000002306000-memory.dmp