Malicious PDF — malware analysis report

Static analysis result for SHA-256 71596bbd89bf8c87…

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 13:13:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6b23e4a2b06149f662faee570c766397 SHA-1: e13563e0a0d0d1adb28a7975593f107acb144f0b SHA-256: 71596bbd89bf8c8706bf3fb739e23df03af18860803321513b3909ce1a97ac85
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and other PDFs hosted on suspicious domains, masquerading as game hacks or free currency generators. The embedded URLs are designed to lure users into downloading further malicious content, likely as part of a phishing or malware distribution campaign. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/431946152/1x1x1x1-roblox-id-game-hack In PDF document text
    • http://florentineholding.com/images/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://florentineholding.com/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://florentineholding.com/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://florentineholding.com/images/coin-master-com_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://florentineholding.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://florentineholding.com/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://florentineholding.com/images/i-need-robux_GM431946152.pdfIn PDF document text
    • http://florentineholding.com/images/coun-master_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://florentineholding.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • http://florentineholding.com/images/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://florentineholding.com/images/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off000047a2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A2 26500 bytes
SHA-256: e97f2635aec66a58164ce6e08ab4cf4da2078ae8d12b7205a6c170e007a0c414
font_01_sfnt_off0000838f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 18064 bytes
SHA-256: dea6029c024e5d62f8b9af3bc6dd5a72a2a62928dc573dca849bdc3d11534152

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