Malicious PDF — malware analysis report

Static analysis result for SHA-256 55d2f47d39faa710…

MALICIOUS

PDF

37.1 KB Created: 2021-05-21 17:04:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9cfb808af892999dc3b7550dbaf79c61 SHA-1: d93e94d98394ebbe303a67474c6bf5cd6db68f0b SHA-256: 55d2f47d39faa710d67634a0564357f99cc0f312c3f6ed7bd2f267b39e0500b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with themes like 'game hacks' and 'free generators'. The ML classifier also flagged the document as malicious. The embedded links likely lead to a second-stage download or phishing page, indicating a malicious intent to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/free-minecraft-server-hosting-game-hack In PDF document text
    • http://membersonlysupplements.com/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://membersonlysupplements.com/images/free-coin_GM406889139.pdfIn PDF document text
    • http://membersonlysupplements.com/images/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://membersonlysupplements.com/images/how-to-hack-coin-master-spin_GM406889139.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
stream_002_off000035c3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35C3 25260 bytes
SHA-256: 39074030a9ce7e16b98a64fdfd64d4cb2acb0dbe6c231a5942be170f15a92876
font_01_sfnt_off0000703a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703A 18112 bytes
SHA-256: 3722fe831b56fbf324865bd98e985c80b873b4d61fb4aa2a64332cfc2a086223

Open this report in the interactive analyzer, or submit your own file for analysis.