Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a51098288adde15…

MALICIOUS

PDF

41.8 KB Created: 2021-06-13 20:21:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 168369d5ce1aa7a097503b375ec14947 SHA-1: df218136da623086caee4a10c1594cbe03bf8717 SHA-256: 3a51098288adde15e117304f3a959497cd05b1704be9bac866f6223103ad6b57
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to known malicious infrastructure, specifically advertising free Robux and game hacks. The heuristic firings indicate these links are designed to lure users into potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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 http://netcdn.co/app/431946152/all-free-robux-promo-codes-game-hack In PDF document text
    • http://demenagementlandry.com/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/cheats-for-royale-high-school-on-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-a-free-raid-pass_GM1094591345.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/pokemon-go-free-legendary-hack_GM1094591345.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/robux-adder_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-mast-hacks_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_off00004654.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4654 24972 bytes
SHA-256: 130df4652aba4743b539843e3348535dfe9876b8f9d7b9ecb3130c02f35c44a6
font_01_sfnt_off0000800a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x800A 18676 bytes
SHA-256: 5f25bf5682618f8fed6c2003c3448f3fc8effdb5a998ea350648318d94e5ca32

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