Overview

overview

10

Static

static

3

6aaac6b9dd...29.exe

windows7-x64

10

6aaac6b9dd...29.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-03-2024 22:07

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General

  • Target

    6aaac6b9dd36b5254bfddca1481db6e80bb30fbdc2e45807a0d34c103d4df229.exe

  • Size

    369KB

  • MD5

    2d159bb1d6e9f0e3993bb05a6d4b232b

  • SHA1

    210f8535698b3f90ba6d1ce11d7bdaf0490d9003

  • SHA256

    6aaac6b9dd36b5254bfddca1481db6e80bb30fbdc2e45807a0d34c103d4df229

  • SHA512

    085740dd27eb749c3a097d62d6f3b2c75d787e7f8d882c615887acedcae2bbdde8e6ea831a00cc286272710ea60523167dad0062ad4be52be268b567b1ee0e85

  • SSDEEP

    6144:j0zKnViNh0U2FwGLpKf3F1n8E18B0rPHhTE15xv/XcD:9nViNmU26kwf3F6w8WjHhTe5pc

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

\Device\HarddiskVolume1\HOW TO BACK FILES.txt

Family

targetcompany

Ransom Note
Hello Your files are encrypted and can not be used We have downloaded your confidential data and are ready to publish it on our blog To return your files in work condition you need decryption tool Follow the instructions to decrypt all your data Do not try to change or restore files yourself, this will break them If you want, on our site you can decrypt one file for free. Free test decryption allowed only for not valuable file with size less than 3MB How to get decryption tool: 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: 08F079F6E1D90BB177FC4290 5) You will see payment information and we can make free test decryption here 6)After payment, you will receive a tool for decrypting files, and we will delete the data that was taken from you 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
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (6486) 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\6aaac6b9dd36b5254bfddca1481db6e80bb30fbdc2e45807a0d34c103d4df229.exe
    "C:\Users\Admin\AppData\Local\Temp\6aaac6b9dd36b5254bfddca1481db6e80bb30fbdc2e45807a0d34c103d4df229.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:2700
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4176
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1432
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:548
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\microsoft.system.package.metadata\resources.5295ec3d.pri
    Filesize

    17KB

    MD5

    cb68bc365b29ec0d00fd6467fc29c71c

    SHA1

    d348673124ce2465c323fe96214f214ef43f269e

    SHA256

    5e1b0afcb88e1d365eec07333717e81295bf0a276e9c53c5789266ec1dea2565

    SHA512

    b4e6550d47df4700d7a4763a92e4f0b89ab68ab0d9d83d26edb449b50ac506cfc353e05148ebb4ba3bb3e67df179ea854c4d56684696ad8026b19ea252dece84

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

    1KB

    MD5

    f7077a757b2e4a1c9de02abbfc1f1968

    SHA1

    9348798f1ce0d0fb2150d5e6faf530d8ddde3faa

    SHA256

    428d801b904b0f66a7c1fba4af28c796fff03936673cedfe02a032acb4362fea

    SHA512

    1e4d0443608682108969980cdcbeec839649e2fee9e2c6d737e052176965527263a21f6cea07a265921d7dd7f39ebaf4f42dea44b9043a34b0ced267ae88f987

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