Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d55b6c34e3ad69…

MALICIOUS

PDF

41.5 KB Created: 2021-05-19 01:38:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 29c80410547b8465e96aadd7560faf43 SHA-1: 757ced5921fe34f17071e2f63180d1f3cab13cb0 SHA-256: 74d55b6c34e3ad69f9b9946c149c5afe386736a818201e69c50bcf927c394598
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure URL is https://netcdn.xyz/app/1094591345/pokemon-go-free-coins-hack-2021-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/1094591345/pokemon-go-free-coins-hack-2021-game-hack In PDF document text
    • http://linde-erbach.de/images/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/master-free-spin_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/ways-to-get-free-robux-2021_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
stream_003_off000048a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48A9 23968 bytes
SHA-256: 225f3b6b11da4a1107c74afefd1d64d73dda5c5664ee4b4eaf48815773154d7f
font_01_sfnt_off00007f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3B 18592 bytes
SHA-256: c10a319a56685bd89ea7185b2b1b8264c7037729ff79945129b6fcd106187a03

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