Malicious PDF — malware analysis report

Static analysis result for SHA-256 47556cdf625eb498…

MALICIOUS

PDF

33.9 KB Created: 2021-07-19 11:42:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7b3d7c66c6e9ccc3ae2feadc48c01021 SHA-1: d914aeb09498708fca1c5feed914acc885c0c9d2 SHA-256: 47556cdf625eb498cad93ffa9cd27527373ce11151177be6de61a9129a2d09e2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and other PDFs, all masquerading as game hacks or generators. The primary redirector URL is http://netcdn.tw/app/431946152/roblox-hack-com-game-hack. The document body and embedded links suggest a lure for users seeking in-game advantages, which is a common tactic for distributing malware or phishing for credentials. No scripts were extracted, but the PDF structure itself facilitates the redirection chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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 http://netcdn.tw/app/431946152/roblox-hack-com-game-hack In PDF document text
    • https://aspiesretreat.org/images/free-robux-site_GM431946152.pdfIn PDF document text
    • https://aspiesretreat.org/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://aspiesretreat.org/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://aspiesretreat.org/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://aspiesretreat.org/images/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://aspiesretreat.org/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://aspiesretreat.org/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://aspiesretreat.org/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://aspiesretreat.org/images/free-modded-minecraft-server-hosting_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
font_00_sfnt_off00002c26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C26 23552 bytes
SHA-256: 8a623f519055a1e8fc39615bb5c4b3b8bef9dfa46c170b234a6181fb5ad3c9f4
font_01_sfnt_off00006178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6178 18628 bytes
SHA-256: 8438ca44c847ffc4ae99f3094d30cd7092138e2becf55c8cd08da5fc71448fbf