Malicious PDF — malware analysis report

Static analysis result for SHA-256 6158a67b6036cf6a…

MALICIOUS

PDF

45.1 KB Created: 2021-05-16 22:57:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b343056803393cc7b788eafd0b5e4ebe SHA-1: 26f96bc7e351db0d54db1b7767f6f9562d903d37 SHA-256: 6158a67b6036cf6a49805046bedc0eae227616d73ba808dd4c6c3fd09c7eb4e0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links to known malicious redirector infrastructure, specifically pointing to a "free generator / game hack" lure. The document body, though heavily obfuscated, contains references to these lures and embedded URLs. The presence of a visual download button heuristic further supports the luring attempt. The primary malicious URL identified is https://netcdn.xyz/app/406889139/www-coin-master-hack-xyz-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/www-coin-master-hack-xyz-game-hack In PDF document text
    • http://www.laborvetro.org/images/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://www.laborvetro.org/images/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://www.laborvetro.org/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/wurst-mc_GM479516143.pdfIn PDF document text
    • http://www.laborvetro.org/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/tiradas-coin-master_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_003_off00004745.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4745 25116 bytes
SHA-256: 6b73cdcb7886b7f0a4f8c2e8f76f776f13d3a00762bcadffcbc9e844b572c256
font_01_sfnt_off00008174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8174 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008c9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9D 18568 bytes
SHA-256: d10afe9215d1c468797a847c40d960bceda2f8a5a3ec83c92f9cb9c05a76bdfe

Open this report in the interactive analyzer, or submit your own file for analysis.