Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a95c3749d432cc6…

MALICIOUS

PDF

32.3 KB Created: 2021-07-19 10:50:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 68cdd511a95469b67ac3595bea656be4 SHA-1: 3db3771d0d3c70804ac80ff4ac4692a5afcc8d88 SHA-256: 1a95c3749d432cc64ea9fb86419b49e0f5f3c2c0b727e33cc246b841f32692f8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on them by promising free game currency or hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence.

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/431946152/rbxfree-com-free-robux-game-hack In PDF document text
    • http://www.peterdejonge.nl/images/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/how-do-i-get-minecraft-for-free_GM479516143.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_off00002a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A49 22216 bytes
SHA-256: 7bdd8bf0308d9c2ae97c8dc1eb34c94aa5d9e2d0eab86a163b65342bb76e9fe9
font_01_sfnt_off00005bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBA 18460 bytes
SHA-256: 96a7f2ecb1645bf28582e424beb12dfc4726f5935c17c98ff40042140a6bccec

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