Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f3872bc3d092586…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 07:00:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b602453bbe595b264513eac7ad452489 SHA-1: eafda3055e0d44983b779f5f4ae2ae5869d47052 SHA-256: 4f3872bc3d092586cc1122e61ff7807af0d2f2b3fa91e84b38a442ffcabb45f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as free game hacks and generators. The ML classifier strongly flagged this PDF as malicious. The document body and embedded URLs suggest a phishing or scam attempt to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-education-edition-free-download-game-hack In PDF document text
    • http://livsgnistans.se/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/100-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-spins-link-2021-april_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_003_off00004aa5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA5 25028 bytes
SHA-256: 1eb97f15b409a992b8232992d665d3970203e69abd8e36ce11da45487608de56
font_01_sfnt_off000083f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F3 18428 bytes
SHA-256: 3a678da037c633a6a13339b3c5a4bd8322cea022da4d3ccfe017faaa6041de20

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