Overview

overview

10

Static

static

3

e8a1b69359...4b.exe

windows7-x64

10

e8a1b69359...4b.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    162s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/03/2024, 10:58

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General

  • Target

    e8a1b69359345662807afe0575abc0a32a8936294e11089f35e4aee221ed344b.exe

  • Size

    375KB

  • MD5

    fa2c24704607db6211645732db2299ba

  • SHA1

    48fbb4f60d619c6684fae94f36601074a32b3dc9

  • SHA256

    e8a1b69359345662807afe0575abc0a32a8936294e11089f35e4aee221ed344b

  • SHA512

    13bf780c8e3eac2fee9a4a8284715efee83ce8e59b7a8eb53ae4fe68f10286c841127d8b732172f694b1d641b056737310dbf7c82676c6cde93a31fbdf30e98c

  • SSDEEP

    6144:L0gBA2bcv9uwoLe0akDU21sfp/fVjloBwQtq87ZC93v:JAqcvpoi7kDU21sfBxl+wQt71q

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 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: A1325619EAFE4F92C9C0B5DD 5) You will see 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
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • 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\e8a1b69359345662807afe0575abc0a32a8936294e11089f35e4aee221ed344b.exe
    "C:\Users\Admin\AppData\Local\Temp\e8a1b69359345662807afe0575abc0a32a8936294e11089f35e4aee221ed344b.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:4896
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3604
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3600
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2816
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:464

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          1KB

          MD5

          01382b0e81d31245b7f8b8cc87cfe3d4

          SHA1

          2c93d0d8bc9488f23ebd59168fb757ef075b98ed

          SHA256

          a090e1e422a55fe67ed61df54266cf4f4553af6d91dc433f3a961b4d165bc75e

          SHA512

          ad1610cf2921c6942e02b986bef07b8f68153e2b7a2b23f915925e9c928895bf6d6ee5039219868e77a6b7b48b66c8067252c138c60446beb58d6661d8af24eb

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