Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bad8e1917118729…

MALICIOUS

PDF

43.9 KB Created: 2021-05-17 02:38:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e9d448e0ee487722541e05e7719f65e3 SHA-1: 8acb085d8e13b30a596b07a55afe27aca93f9020 SHA-256: 4bad8e1917118729c6296e156e31798f72d38f0b293de9d6539e534964da13c7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the 'ML_NYX_PDF_MALICIOUS' score further supports malicious intent. The document body and extracted URLs point towards lures for free Robux and game hacks, likely directing users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/free-robux-group-game-hack PDF link annotation
    • http://modlingua.com/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DA 29120 bytes
SHA-256: b47c70981ea6f392abf43c6ebb8b6c5c8ce4946ae44f455d1031fd5cbb83de8c
font_01_sfnt_off000089d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D5 18192 bytes
SHA-256: 388213afa323ee085de7e38d37e80f389e12e91d2d5a1b35e5038c11a526558f

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