Malicious PDF — malware analysis report

Static analysis result for SHA-256 46916bd2158bda6e…

MALICIOUS

PDF

46.4 KB Created: 2021-06-11 08:55:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4dbdd40d175acd8ac9c74553a71de90b SHA-1: 5dc4a288d8482cd5c6cc496ce3490a67b216c216 SHA-256: 46916bd2158bda6e9e5ba75303a5a95f4139ab6a39f1f89dba60e2b873790eca
142 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to lure users into clicking on what appear to be game-related hacks and generators. The primary link directs to a page promising Roblox hacks, while a large number of other links point to SEO-optimized PDF documents hosted on library.itn.ac.id, forming a link farm. The document's structure and content strongly suggest a phishing or scam attempt, likely aiming to drive traffic to malicious or ad-filled websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 5

  • 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.
  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/431946152/hackaron-com-roblox-hack-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-walk-through-walls-hack-cc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-military-script_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5396 27780 bytes
SHA-256: 7895ce97fe1e82992156c889e5f3a8da0591a44bb75b0d761f2ecf42571240bb
font_01_sfnt_off00009288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9288 18440 bytes
SHA-256: c5a593b048505274cbcba2479170c2d7bc5e8c3282bcedbf7b9bb0c517284569

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