Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef0d919bd9512f64…

MALICIOUS

PDF

36.0 KB Created: 2021-05-20 22:52:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f085075adde57ee259816b5278c5ccb7 SHA-1: 672d576348d097e4984697ffd873559bef9868af SHA-256: ef0d919bd9512f6430d96fa87f978b6c3e52175bb638dae1e1d393a714bbfdcb
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'free game hacks' or generators. The document body explicitly contains phrases like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The ML classifier also flagged this PDF as malicious. The primary attack vector appears to be luring the user to click on a link that leads to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-java-edition-key-free-game-hack In PDF document text
    • http://auto-mankel.de/images/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/free-robux-promo-codes-2021_GM431946152.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_off00003239.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3239 25092 bytes
SHA-256: a58e4d6ca54a2991957474a2cb79bd7d3117a3bccc8e742dc61d86a63a8a6402
font_01_sfnt_off00006af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF8 18344 bytes
SHA-256: 334aec38d846e20b2b1a8e37a7c069b76e72c9b1d6d0d2be887913576bf47b02

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