Malicious PDF — malware analysis report

Static analysis result for SHA-256 79be3ae1dc52cf89…

MALICIOUS

PDF

38.8 KB Created: 2021-05-20 15:25:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6d40b2cda51cadc14cd00713c7a809f SHA-1: eb80fd929306189fcaaa960b60286531c4e2e3ee SHA-256: 79be3ae1dc52cf898a69b4fb10b540c39203a00384e3463a54ee83d7f2baeb9d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The document body explicitly mentions "Free Robux" and "Roblox Generator", reinforcing the social engineering aspect. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/how-to-get-free-robux-easy-game-hack In PDF document text
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://chocolats-boccardi-carcassonne.com/images/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://chocolats-boccardi-carcassonne.com/images/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://chocolats-boccardi-carcassonne.com/images/how-do-you-get-free-robux-without-paying_GM431946152.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_off0000353f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x353F 26904 bytes
SHA-256: a51cb395d4b0c379b2ea9dc38f43254f0199ef4c18871c7e6dce1e32512da85e
font_01_sfnt_off0000752f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752F 18688 bytes
SHA-256: afa93f6b5b78c11c56913a3e0021d293f85f1b4278f41e2b8713ad9a89f051de

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