Overview

overview

10

Static

static

3

新建文件夹/x.exe

windows7-x64

10

新建文件夹/x.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 10:07

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General

  • Target

    新建文件夹/x.exe

  • Size

    484KB

  • MD5

    5d279e53008bcf128c79d18913073440

  • SHA1

    710f5671c5326c9b722a69284a30039c2bd00628

  • SHA256

    380e081dbf5550146db4e9d874a796f6d5d80c49b5cbe50f9247a556192ea129

  • SHA512

    f093db7036d75ee03c0cf6b170b1d7206ee81d57d199df69930979c15ebd5fcc365333be514abea69b196faaa592cd47ff2f778875521060c3ebe4bf931c3627

  • SSDEEP

    6144:40Kf3dwCiJOp5DzwQTSmKMuYREY4nLy95/YjVD+IyaFV/GCc7IfxB7f:255QySNaEY4nW9sl+ja3/GCT

Score
10/10
targetcompanydiscoveryevasionransomware

Malware Config

Extracted

Path

\Device\HarddiskVolume1\HOW TO BACK FILES.txt

Family

targetcompany

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: BB7C706BCC844BA63068AB37 5) You will see chat, payment information and we can make free test decryption here Our blog of leaked companies: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion If you are unable to contact us through the site, then you can email us: [email protected] Waiting for a response via mail can be several days. Do not use it if you have not tried contacting through the site.�
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
  • Targetcompany family
    targetcompany
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (6527) 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\新建文件夹\x.exe
    "C:\Users\Admin\AppData\Local\Temp\新建文件夹\x.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:4928
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1860
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:976
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.b783ffe3.pri
    Filesize

    2KB

    MD5

    fdd862409073fff953baab6f5f09eb65

    SHA1

    763e278f9a26d7e823052b56a2553a46ec2179c0

    SHA256

    f0853a1adcc79698f10ec0db6087f15ee77dae8f166bc5f6879f19ae5fe41e95

    SHA512

    ae3adffcda379fe00c9485cfb9c4c6d0b3a4848505c9ef9ee8b33ae647e5212cd8683616e68790e5a6b77e5285041667ac20e3c36c70287fcba0399841420bb9

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

    1KB

    MD5

    4320c059e089580302f8ed9fb5c254a2

    SHA1

    37adfee38897711be7bb27a550432ff597c1635e

    SHA256

    d5fbea79d7809252124493c60a3a8d404dd783d68a532fe0e96185d10c7a99e7

    SHA512

    958f19bfe02e449ee5f755e5522001e3ff6354a344a33e75521a60136e3aaabfe88689f9924f3bf97b04c9ff9eb61857dc8c048409493b07261e1b12399ae47f

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