Analysis

  • max time kernel
    121s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03-06-2024 09:23

General

  • Target

    d6629a9b618ede05e9e75a2cebfb69bc7b1a34fe00a42ff60d88828a307c0d08.iso

  • Size

    544KB

  • MD5

    d201bd19e60d500963aff0c235b07727

  • SHA1

    341552a8650d2bdad5f3ec12e333e3153172ee66

  • SHA256

    d6629a9b618ede05e9e75a2cebfb69bc7b1a34fe00a42ff60d88828a307c0d08

  • SHA512

    4afa7da1bf2a86dc9a3b94b674ecffea638304c42c43c955631bbe29c605be673b7182ed1fcb8997c55c6bbd2a48e5ec46177e8327e9e903781d1ffb2abd991c

  • SSDEEP

    6144:h0wmbI4/Z4SHvrxw6zaIST1w9wEPDasWxxsBhS37b8o6XCFyPwCMa6qnXxq/y:Gzv66zaISTW9asWxxAh4IlXC4PUqBq/

Malware Config

Extracted

Path

C:\HOW TO BACK FILES.txt

Ransom Note
Hello Your data has been stolen and encrypted We will delete the stolen data and help with the recovery of encrypted files after payment has been made Do not try to change or restore files yourself, this will break them We provide free decryption for any 3 files up to 3MB in size on our website How to contact with us: 1) Download and install TOR browser by this link: https://www.torproject.org/download/ 2) If TOR blocked in your country and you can't access to the link then use any VPN software 3) Run TOR browser and open the site: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin 4) Copy your private ID in the input field. Your Private key: B9AA0BBAF8CCB382CDE37D2C 5) You will see chat, payment information and we can make free test decryption here Our blog of leaked companies: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion �
URLs

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion

Signatures

  • TargetCompany,Mallox

    TargetCompany (aka Mallox) is a ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.

  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
  • Renames multiple (7262) files with added filename extension

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\d6629a9b618ede05e9e75a2cebfb69bc7b1a34fe00a42ff60d88828a307c0d08.iso
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Windows\System32\isoburn.exe
      "C:\Windows\System32\isoburn.exe" "C:\Users\Admin\AppData\Local\Temp\d6629a9b618ede05e9e75a2cebfb69bc7b1a34fe00a42ff60d88828a307c0d08.iso"
      2⤵
        PID:2676
    • C:\Windows\system32\verclsid.exe
      "C:\Windows\system32\verclsid.exe" /S /C {0B2C9183-C9FA-4C53-AE21-C900B0C39965} /I {0C733A8A-2A1C-11CE-ADE5-00AA0044773D} /X 0x401
      1⤵
        PID:2624
      • C:\Program Files\7-Zip\7zFM.exe
        "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\d6629a9b618ede05e9e75a2cebfb69bc7b1a34fe00a42ff60d88828a307c0d08.iso"
        1⤵
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2596
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden -command start red.exe "1"
        1⤵
        • Command and Scripting Interpreter: PowerShell
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2508
        • C:\Users\Admin\Desktop\red.exe
          "C:\Users\Admin\Desktop\red.exe" 1
          2⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1904
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1960
            • C:\Windows\system32\bcdedit.exe
              bcdedit /set {current} bootstatuspolicy ignoreallfailures
              4⤵
              • Modifies boot configuration data using bcdedit
              PID:1692
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1940
            • C:\Windows\system32\bcdedit.exe
              bcdedit /set {current} recoveryenabled no
              4⤵
              • Modifies boot configuration data using bcdedit
              PID:1708
      • C:\Users\Admin\Desktop\red.exe
        "C:\Users\Admin\Desktop\red.exe"
        1⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:1724
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2172
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {current} bootstatuspolicy ignoreallfailures
            3⤵
            • Modifies boot configuration data using bcdedit
            PID:2412
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2212
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {current} recoveryenabled no
            3⤵
            • Modifies boot configuration data using bcdedit
            PID:2420
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\HOW TO BACK FILES.txt
        1⤵
          PID:668

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Documents and Settings\Admin\Recent\CustomDestinations\d2905e77b2d1aac0.customDestinations-ms
          Filesize

          6KB

          MD5

          96e053ed2cf9cf1d9b97f3066b4b90b0

          SHA1

          6202eb4253ce83eb1762a7d5ba52e515e96c359a

          SHA256

          0d6b9d126d68c217bfcdc7edfb99e4af9edb04b9c5c56247aeb79fd586fdd8e8

          SHA512

          63bc8b644970e9fa6cec31de813d9df6de2364d7abb6f771c26241fcde5c20b290c7b3f5faf5db9620c45166876e95f6342c244e584e9485f21482ad5711a15d

        • C:\HOW TO BACK FILES.txt
          Filesize

          910B

          MD5

          ef899f12bae05f99b4e48bf670e53680

          SHA1

          7b811dcc9ef59e8fa7d02fe33a5f5111f389a2c6

          SHA256

          f6324dccf234fc5431f9f54d1a4d5443c2003f8e1b76fe4b107372f7d2522fec

          SHA512

          d1f6c2892622e1d15b5f65503f32f6848a3c0dcb01f0a8a350c2a3a02d13bcb65fda99a3e2d5b888db9e1f1c6ac066ad4c6c363b54b6232befee884c2f133a74

        • C:\Users\Admin\Desktop\Reader.lnk
          Filesize

          2KB

          MD5

          66bb9363e23c7ef2d16c89cd654b491e

          SHA1

          c20e8d536804cf97584eec93d9a89c09541155bc

          SHA256

          61f36c5ae038faa2b58a9a17b464d01414b4265e46634f353319c471d0a35789

          SHA512

          b7a751e49218230d574ca9cc4cbbb1995d89798268124b1617889c7558c66902f81fdb77a299edcc6d96452cec81adb76768172710e00c9272d30821ab0089c5

        • \Users\Admin\Desktop\red.exe
          Filesize

          478KB

          MD5

          71efe7a21da183c407682261612afc0f

          SHA1

          0f1aea2cf0c9f2de55d2b920618a5948c5e5e119

          SHA256

          45a236e7aa80515aafb6c656c758faad6e77fb435b35bfa407aef3918212078d

          SHA512

          3cff597dbd7f0d5ab45b04e3c3731e38626b7b082a0ede7ab9a7826921848edb3c033f640da2cb13916febf84164f7415ca9ac50c3d927f04d9b61fcadb7801c

        • memory/2508-32-0x000000001B6B0000-0x000000001B992000-memory.dmp
          Filesize

          2.9MB

        • memory/2508-33-0x0000000002280000-0x0000000002288000-memory.dmp
          Filesize

          32KB

        • memory/2676-24-0x0000000000120000-0x0000000000121000-memory.dmp
          Filesize

          4KB