Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe2179a54784a69…

MALICIOUS

PDF

32.7 KB Created: 2021-07-21 06:32:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd77c7f884df6e35068e47a16ecb4394 SHA-1: e58806963215d55cbaa1d184ec03653f8ec8fb46 SHA-256: afe2179a54784a690304dfcde4be195316e6546e3720e02cdbb872a1ea2f8487
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure. The lure is related to game hacks and free generators, a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to a site that hosts further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/coin-master-free-stuff-game-hack In PDF document text
    • http://genialica.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/free-tiktok-fans_GM835599320.pdfIn 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_off000027f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27F4 24652 bytes
SHA-256: 4619ffd47b9acf588e21a4bec803df355877f42112fec778549819b1bf29bcd8
font_01_sfnt_off00005f0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0F 17848 bytes
SHA-256: 49970788d519349fbd5ba6badf06c324563f4794a9a5c1e41d0627a31815ac32

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