Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a89f62b358a01b…

MALICIOUS

PDF

43.1 KB Created: 2021-05-11 20:39:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 61841f57655cfd2ef1e327f4c70d5d57 SHA-1: 6a592afe73946f6c0fc3c6d2c2f6f8299f21ffb9 SHA-256: c7a89f62b358a01bf8d74ce51445f11a926ec0477bb342d13a6e408a1690344f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game-related content. The document body and embedded URLs suggest a lure for free game items, likely leading to malware download or phishing. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/how-to-get-free-tokens-in-minecraft-ps4-game-hack In PDF document text
    • http://kingmusic.pl/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/robux-online_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/get-free-robux-now_GM431946152.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
stream_003_off00004e89.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E89 24748 bytes
SHA-256: 2d22c11249347eba361f493c9ad55b440424fba7e30c0edb47f0a3d741ef7c86
font_01_sfnt_off00008675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8675 18260 bytes
SHA-256: 6b17d904edba380b1c0a1521f110ced755ab41ddc916bfb976523684f5146024

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