Malicious PDF — malware analysis report

Static analysis result for SHA-256 d41614101ad073ad…

MALICIOUS

PDF

42.2 KB Created: 2021-05-21 00:16:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0365c6f87b2e8b8a9320938483e93ad6 SHA-1: 75417b7ab2a6210e88e0a05801ad5127d9765fe3 SHA-256: d41614101ad073ad8d1f5f1d3555243a2be693831207245ded6c4c20b595820f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting "game hacks" and "generators" for popular games. The document body and embedded artifacts suggest a lure to download potentially unwanted or malicious software. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7490

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/431946152/synapse-roblox-free-download-game-hack In PDF document text
    • https://learnwmf.org/image/data/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • https://learnwmf.org/image/data/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://learnwmf.org/image/data/files/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • https://learnwmf.org/image/data/files/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • https://learnwmf.org/image/data/files/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000337b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x337B 30568 bytes
SHA-256: 9138d3f6d86b4493cc60266d6e57ad3da90f54da6ffe1fb414616e5b4591287e
font_01_sfnt_off000075bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BF 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off00008160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8160 19036 bytes
SHA-256: 893248d405b3cd6ab4cc16169dbaa725a15df4f046ef9721aa1aaf04f233e0f3

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