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Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2024, 06:36

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General

  • Target

    45a236e7aa80515aafb6c656c758faad6e77fb435b35bfa407aef3918212078d.exe

  • Size

    478KB

  • MD5

    71efe7a21da183c407682261612afc0f

  • SHA1

    0f1aea2cf0c9f2de55d2b920618a5948c5e5e119

  • SHA256

    45a236e7aa80515aafb6c656c758faad6e77fb435b35bfa407aef3918212078d

  • SHA512

    3cff597dbd7f0d5ab45b04e3c3731e38626b7b082a0ede7ab9a7826921848edb3c033f640da2cb13916febf84164f7415ca9ac50c3d927f04d9b61fcadb7801c

  • SSDEEP

    6144:W0wmbI4/Z4SHvrxw6zaIST1w9wEPDasWxxsBhS37b8o6XCFyPwCMa6qnXxq/y:7zv66zaISTW9asWxxAh4IlXC4PUqBq/

Score
10/10
targetcompanyevasionransomware

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: 8ADCEDF3800990DEBEB582A8 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
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (6533) 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).

  • 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\45a236e7aa80515aafb6c656c758faad6e77fb435b35bfa407aef3918212078d.exe
    "C:\Users\Admin\AppData\Local\Temp\45a236e7aa80515aafb6c656c758faad6e77fb435b35bfa407aef3918212078d.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:4348
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3568
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:628
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    910B

    MD5

    d16c3d821e78f5dd24d329d17b7f0b75

    SHA1

    c4c6177ba28b912bd8bdbb5dafd2eff54cc119d4

    SHA256

    ea64d2959625eac4027afe213a3d160bfa65c01d27d6fc3166b3e3906dee8395

    SHA512

    cc32d627c99f9baa2c12e76bb51aaa77062f3535814bfd0824cef501a151f6e4eba0ffbebaeb048afbf0fad21252517cb2879d06022cac2aadd40ad4f0b49a96

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