Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee76c7ca6c5bc415…

MALICIOUS

PDF

36.1 KB Created: 2021-05-22 12:05:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 753e78e0419e52784bfe0edf1841b40a SHA-1: d1b5cffb34537ff27eff00dc2461ca4d155bfbbf SHA-256: ee76c7ca6c5bc415d28d61c173e5a8405ec479340eac8cef1b330f7b13827694
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to websites offering 'free generators' or 'game hacks', such as 'earn-free-robux-on-roblox-game-hack'. These links are identified as malicious redirectors. The document body also contains a call-to-action phrase, reinforcing the lure. The primary attack pattern involves tricking the user into visiting these malicious sites, likely to deliver further malware or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/earn-free-robux-on-roblox-game-hack In PDF document text
    • http://bau-lk.de/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://bau-lk.de/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://bau-lk.de/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://bau-lk.de/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://bau-lk.de/images/coin-master-daily-free-spins-link-march-2021_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_off000031f3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31F3 25328 bytes
SHA-256: 8557b55ca5a69873d9a8d3f0548b10bbdc69553ff97747f9bac7f9b3c6c08949
font_01_sfnt_off00006bc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC5 18316 bytes
SHA-256: 9c0981cacc72906997edc94ef8681ff328413c242d975763da1b98cbde4aeec5

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