Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6dbf2cdbab3d33e…

MALICIOUS

PDF

48.4 KB Created: 2021-05-16 05:45:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 17baf11c1ddd97432a49cb9c3595cedb SHA-1: dae2cf363b276c6e1fa4f5a2f36a93448003da8e SHA-256: a6dbf2cdbab3d33e75c789f4f9e4c5eab9964a763a2170b763a18e8f70648327
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free currency, directing users to a malicious URL. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful content. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

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-hack-a-minecraft-account-game-hack In PDF document text
    • http://erptrends.com/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://erptrends.com/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://erptrends.com/images/i-need-robux_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://erptrends.com/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d30.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D30 25340 bytes
SHA-256: fe16eaed35315531989f5813dad45014314941bbba8eb77c26dac14aff129ad0
font_01_sfnt_off00008667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8667 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off000090bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BB 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00009acb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ACB 18184 bytes
SHA-256: 9b8f26e31d459421e9e5b83d6a53d579ef5ea49b0db69369fb37c1c5c6cb5db0

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