Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea336f14203acd6…

MALICIOUS

PDF

33.7 KB Created: 2021-07-19 05:37:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b7b262c215d1f31c624461d2502f24e9 SHA-1: 1040d66e31ffcbe00c0d2d0baac326f8b034c9a3 SHA-256: eea336f14203acd6cc0299f0e42aedb346c1cf746a4e52f646eabb3b6067a6c5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it links to malicious redirector infrastructure, specifically advertising a "free generator / game hack". The document body contains the URL http://netcdn.tw/app/406889139/free-spins-coin-master-links-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the nature of the lure suggests a phishing or scam attempt to drive traffic to malicious sites.

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/406889139/free-spins-coin-master-links-game-hack In PDF document text
    • https://www.mostraining.co.za/images/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
    • https://www.mostraining.co.za/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.mostraining.co.za/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.mostraining.co.za/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://www.mostraining.co.za/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.mostraining.co.za/images/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.mostraining.co.za/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://www.mostraining.co.za/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://www.mostraining.co.za/images/100-free-spins-coin-master_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
font_00_sfnt_off00003016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3016 22600 bytes
SHA-256: aa6817ed7a46cf814f9ff7fc010f8dff4ba02326b690a6255f899c1d0dd2cdce
font_01_sfnt_off0000626c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626C 18056 bytes
SHA-256: 07f1a9832fff0ce02b8ea8bcbd6448fb7022c7ac6c85a00fb5b887865844234a

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