Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ac7ef4cbd94071…

MALICIOUS

PDF

42.5 KB Created: 2021-05-13 03:17:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 333c0d446bd3aefe29cec45216b35075 SHA-1: f1207f804eac9bc6b75b2400a05b53602684d7df SHA-256: 34ac7ef4cbd94071561743adfbe720fa3ee12879710c93b09109548068b4ae65
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to known malicious redirectors, specifically advertising game hacks and cheats to lure victims. The document body, though partially obfuscated, contains URLs that are consistent with this lure. The primary malicious URL identified is https://netcdn.xyz/app/406889139/hacks-and-cheats-for-coin-master-game-hack, which is flagged as a malicious redirector.

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/406889139/hacks-and-cheats-for-coin-master-game-hack In PDF document text
    • http://www.sbairs.com/datas/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/www-robux-redeem_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-spin-hack-no-verification_GM406889139.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_off00004a6e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A6E 25448 bytes
SHA-256: 1399877283bd15001b22b2072cc4aebea824c8e584a02a48288302423f9e3a13
font_01_sfnt_off00008431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8431 18220 bytes
SHA-256: a46c006b512b84888bc8fbab681985973724221ae7a22be5c9063266660da03e

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