Malicious PDF — malware analysis report

Static analysis result for SHA-256 73433a07579d7baa…

MALICIOUS

PDF

36.3 KB Created: 2021-05-22 07:51:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 294b0b2b39cde02d5db0764a8253fa9c SHA-1: 55c14c41890029a6f727f15ea4cf73f3d456fbe9 SHA-256: 73433a07579d7baad810d02688d5e21ab58047afc04dce9367fbb50c0b87f753
160 Risk Score

Malware Insights

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

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically advertising "free game hacks" for popular titles. The heuristic firings confirm the presence of malicious redirector links and a lure for game-related cheats. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit vulnerabilities or trick the user into downloading a secondary payload.

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/479516143/minecraft-com-free-game-hack In PDF document text
    • https://goonscience.com/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • https://goonscience.com/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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
stream_002_off0000342c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x342C 25228 bytes
SHA-256: 68fc5ce2f5eff9384afd2f0d2285764fd03f2d8a98c4b25f5626ac90c1c6cddb
font_01_sfnt_off00006d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9F 17968 bytes
SHA-256: 5bf46a6d08d3ffa684fcf656b6008ff7f2ef06acfe8c47aedee45889ac3be72f

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