Malicious PDF — malware analysis report

Static analysis result for SHA-256 196e7792c04b769f…

MALICIOUS

PDF

47.8 KB Created: 2021-06-13 21:30:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9908c716b411fd17a02e87289e438af2 SHA-1: 56d89a2fead13bbc78a7ec715715ca8f59ebd1c3 SHA-256: 196e7792c04b769f6a1b78629550b1f558ed90d33d54b3bc9479aa6c28331aef
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous external links, many of which point to other PDF files, suggesting a link farm or a method to distribute further malicious content. The presence of a 'download button' lure and the ML classifier's high confidence score indicate a malicious intent. The document body, though heavily obfuscated, contains text related to hacking Roblox accounts, reinforcing the malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/como-hackear-la-cuenta-roblox-game-hack PDF link annotation
    • http://demenagementlandry.com/images/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-free-robux-hack-download_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-roblox-account-with-robux-password_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-pe_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49AF 28792 bytes
SHA-256: 0f1179e357db3ef71b37b20c5e9cba75153279961d721334d842b6fca37444b4
font_01_sfnt_off00008a61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A61 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9709 18684 bytes
SHA-256: b4236491032fdd1f5a043a5aaad2aa974501e894331d3ca0b58dbfba63626a47

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