Malicious PDF — malware analysis report

Static analysis result for SHA-256 5554ee48ce9ca084…

MALICIOUS

PDF

43.9 KB Created: 2021-06-03 08:39:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 434e7321b62b3a013d53ec93da95c66f SHA-1: 1b24b16cfb664a46ea21c924b1a8786a4a9dbdbf SHA-256: 5554ee48ce9ca0847b7f4661f430ff0ceb571231eb15f035973bc58074d5f418
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The primary lure is a 'Pokemon Go Free Gifts' link, which directs to `https://netcdn.online/app/1094591345/pokemon-go-free-gifts-game-hack`. The presence of a visual download button further supports the deceptive nature of the document, aiming to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.online/app/1094591345/pokemon-go-free-gifts-game-hack In PDF document text
    • http://www.msts.ac.th/UserFiles/File/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/free-coin-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.msts.ac.th/UserFiles/File/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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
stream_004_off00005122.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5122 24740 bytes
SHA-256: 6b539e956a8587d92c0c18fd42499e5f1bfdafda547e42c3c60393b1961c60a2
font_01_sfnt_off00008a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A06 18068 bytes
SHA-256: 6b694f83514b5ed5dceb9295c8ac4646f4591d656f2b12a90bd33e059a4bb9f6

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