Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeca3ff5e61d689c…

MALICIOUS

PDF

36.8 KB Created: 2021-05-20 19:09:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1dbfe1f30f0844adf2d800165f27323a SHA-1: cb55addd76d8ecab85bc2f65442dfa9e77f9aae7 SHA-256: aeca3ff5e61d689c6ba786d5ed703514c035dbea92b21f7b67d8153d7132914f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising a 'free generator' or 'game hack' for Minecraft. The document body and embedded links suggest a lure to trick users into visiting these sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection and potential for further exploitation.

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/minecraft-free-school-game-hack In PDF document text
    • http://www.gadanie.lv/images/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.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_off00003603.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3603 26292 bytes
SHA-256: 9c4501dcd938e97c1aaa30532b335b153cab080f3ab3b5aaab06229645ee6f6b
font_01_sfnt_off00006ff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF9 17952 bytes
SHA-256: 3306dbe29cd5a9252a7c23216fa618f4152d1ef882dd12fcaa7c7369e283e77f

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