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Overview

overview

10

Static

static

3

Ransom.exe

windows7-x64

10

Ransom.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2024, 17:29

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General

  • Target

    Ransom.exe

  • Size

    376KB

  • MD5

    120c6ddfc24274b6e2e3a1ba7dc519ab

  • SHA1

    29936b1aa952a89905bf0f7b7053515fd72d8c5c

  • SHA256

    2289706f678585059502a24283e0f55d56cf477524753c606f64825bba66fca8

  • SHA512

    dd9b2fb6cd5f6f044daa80ef634078849032ebbdbd1d293bb7bcb0270aa8b7360c39addb0826c7a3ddc8714b559bf8828e8e506ac91bcb4702a72f4c8ec4850a

  • SSDEEP

    6144:KFtgKBIxGS/bbWGGJK8PpzR1WpOJOQMeEBwhUg5bBDNPbsP/qrscpyj4CVKSkn:+tgKIxfbbezR1WpOJJMjihU030/qRMra

Score
10/10
targetcompanydefense_evasionexecutionimpactransomware

Malware Config

Extracted

Path

\Device\HarddiskVolume1\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: D1CD6196C92687A881689A6E 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.

    ransomwaretargetcompany
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (6521) 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.

  • 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).

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion
  • 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\Ransom.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransom.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
        PID:1032
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
        2⤵
          PID:3284
        • C:\Windows\system32\vssadmin.exe
          "C:\Windows\sysnative\vssadmin.exe" delete shadows /all /quiet
          2⤵
          • Interacts with shadow copies
          PID:2932

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\S-1-5-21-3571316656-3665257725-2415531812-1000-MergedResources-0.pri
        Filesize

        137KB

        MD5

        abf9a235dbe6bfabe5c3033a5bece854

        SHA1

        d4175a4a7a2a1576ccf00d95a14128f89994591c

        SHA256

        6b9d85af6b646a960aa20e5fefa37de5f88cdb2ac1228fcd17940826eeeec443

        SHA512

        f105ccda1ec4f7bdf5129470b8db58354b8fce393ab51a7659ab897b4fa86f30fb157567739519fb46d4b1d0137ea19380b82dc31b584ea1afeaf7a75802869e

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      • \Device\HarddiskVolume1\HOW TO BACK FILES.txt
        Filesize

        910B

        MD5

        9d787c788bebc62e8e17b597f2e2a6f8

        SHA1

        6fadf59f1f7a001cff79ccba615aae593acb325d

        SHA256

        9bacd94c73a89734a0e160772d9a0dcbb11cedf193d9ecc1a542ce242fecfb30

        SHA512

        b99df073240fa25510b94a77fb80f2a6e55c9f8dd45a69396474be1fcf0e9f0898448f2e93fbf19f292f83f29ee514537965c45ffe8e7c47131ac39c617a42a4

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