Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9bae8ce006c9322…

MALICIOUS

PDF

46.2 KB Created: 2021-05-14 02:36:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: db20417e4daa5f22ec12b9081eb4237c SHA-1: fe9209568f3116d7111bdb19dfbab36fe028132d SHA-256: f9bae8ce006c9322a835795cba2ecc280d1a09de27c105d6ade415db6743f342
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on demenagementlandry.com and promise cheats or free items for games like Roblox and Coin Master. The ML classifier and the PDF_SEO_LINK_FARM heuristic strongly indicate malicious intent, likely to drive traffic to potentially malicious or scam-related content. The presence of embedded URLs and the document body content suggest a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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 https://netcdn.xyz/app/431946152/roblox-free-hair-girl-game-hack PDF link annotation
    • http://demenagementlandry.com/images/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-2021_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-fan-club_GM406889139.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_off000048d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48D0 28324 bytes
SHA-256: 76321ecb48368028ed74df199a8ede3da9eecc3e0f78c8d3723996e5b9d048d5
font_01_sfnt_off000085c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C9 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00009270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9270 18296 bytes
SHA-256: 85bf76e8bd1c39b95a864efdae00349d5ffffd2e934a72b3fb989e9d72ccc849

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