Malicious PDF — malware analysis report

Static analysis result for SHA-256 169e5c66bb659d2c…

MALICIOUS

PDF

28.7 KB Created: 2021-07-19 07:04:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 833bbe7cccc80b2157e26141fbf4fe43 SHA-1: fa3658528908e20ec3094e12f2c7200590187415 SHA-256: 169e5c66bb659d2c5fb575862509095848a8c87626451c3288f0734c1b945a24
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to 'free Minecraft for Android' and a prominent call-to-action button. It embeds a malicious URL that is known to lead to redirector infrastructure, likely serving as a gateway to further malicious content or downloads. The document body and heuristics strongly indicate a social engineering tactic to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0373

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/479516143/how-to-get-minecraft-for-free-on-android-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
font_00_sfnt_off00002083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2083 21612 bytes
SHA-256: 952ab9eea2b2dd1b50a354d5d2794419d40bbaf7c36974da1234db4edcb9df56
font_01_sfnt_off00004f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F6F 18048 bytes
SHA-256: 8059851acc98585c267d1a0730441da2490f7a27bb6efaac05b05bf58a4bb166

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