Malicious PDF — malware analysis report

Static analysis result for SHA-256 d862cdab53ab45b6…

MALICIOUS

PDF

37.1 KB Created: 2021-05-21 08:39:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 28b9bec92aad736ee9533c7c462db00e SHA-1: d88c6c3b6e945d987ac035abac542ba054913038 SHA-256: d862cdab53ab45b660f57277dde9bf1a9eb9ffbb526df7c36df0443e097adecc
160 Risk Score

Malware Insights

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

The PDF document contains lures for game hacks and free generators, directing users to malicious redirector infrastructure. The presence of a download button lure and embedded URLs strongly suggests an attempt to trick the user into navigating to a compromised site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a common phishing or malware distribution technique.

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/how-to-get-minecraft-for-free-on-phone-game-hack In PDF document text
    • https://bazilikum.com/images/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bazilikum.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://bazilikum.com/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://bazilikum.com/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://bazilikum.com/images/free-to-play-minecraft-servers_GM479516143.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_off00003482.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3482 26312 bytes
SHA-256: 9262d18ea992b452e00802d9e6f9e2ab94ac9e3ce78761d4ea172641bec462c9
font_01_sfnt_off00007044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7044 18192 bytes
SHA-256: 90b6a34edb34d309cd556a6b23817db9766b775643cedc81c4ce7203f03c64d4

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