Malicious PDF — malware analysis report

Static analysis result for SHA-256 d985b79a519f5898…

MALICIOUS

PDF

36.9 KB Created: 2021-05-23 02:44:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e93fd5669ae2c54980cbcf22e9ce7dd7 SHA-1: d44e3c77669974f1328fa0ccb6eb7277110d2e37 SHA-256: d985b79a519f5898ee48952a16b485713441c87c872771cd61c7b81071334745
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a call-to-action button designed to lure users into clicking on a URL that leads to a known malicious redirector. The document body and heuristics indicate a scam related to 'free Robux' or game hacks, aiming to trick users into visiting the malicious site. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/431946152/you-promised-my-son-free-robux-game-hack In PDF document text
    • http://grahambettsmotors.com/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://grahambettsmotors.com/images/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://grahambettsmotors.com/images/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://grahambettsmotors.com/images/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • http://grahambettsmotors.com/images/free-robux-hack-no-human-verification-or-survey_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_off00003441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3441 24488 bytes
SHA-256: 6b110032e6cc971b4687bad625342ea4155c251f044d959470ebdad3e5482912
font_01_sfnt_off00006c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C59 19260 bytes
SHA-256: 86e86c6d1a3146e1f407edd8c9cf68c56566e4a3a2a05930f639aef478547eb3

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