Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0715fba7c6ed27…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 15:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f104b0d0cb2dee8fd65a88594469343e SHA-1: 7c9e24c71082ab9afaab6182f33da77af226eb36 SHA-256: ad0715fba7c6ed2728a6dd5f5d9e06f3bea8a6ff6bd6703958e3ab617958c197
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are SEO-optimized to appear as legitimate resources for game cheats and free in-game currency. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces the deceptive nature of the document. The primary goal appears to be directing users to external sites that likely host malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-cheat-free-robux-game-hack PDF link annotation
    • https://lib.unitri.ac.id/repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-free-robux-trade-m-programme-promocom_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-free-games-folder_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-cheating-hacking_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-and-limiteds-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-shards-shard-seekers-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hack-para-restaurant-tycoon-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-generator_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/can-roblox-badges-hack-u_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/assassin-dodge-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-prison-life-hacking-why-is-this-even-a-thing_GM431946152.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_off00003132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3132 22044 bytes
SHA-256: 75f1c633ec4bd5ce7e8a5995b1d175ee8b0b474567a3b6715511b8c8181a78c8
font_01_sfnt_off000061c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C4 19060 bytes
SHA-256: 9f0a37b5cbcd25f63abd2f8f1201722557393a38188229e859b532ff6de3486b

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