Malicious PDF — malware analysis report

Static analysis result for SHA-256 110fa75e34d82acd…

MALICIOUS

PDF

46.0 KB Created: 2021-05-16 18:24:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1c050fcc44595d455a0efdcc9e69bf23 SHA-1: e5b13c043008f1ff2ce49bbad5297a63d59e32a5 SHA-256: 110fa75e34d82acd6dbc95195a41fcee002cb4b5edde3cd03b0e32d7caf1a0bc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users to a malicious redirector. The primary lure, 'Real Robux Generator 2021', points to a URL that is flagged as malicious infrastructure. The document body, though partially corrupted, contains references to game hacks and generators, reinforcing the lure. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/real-robux-generator-2021-game-hack In PDF document text
    • https://www.les-sp.org/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/easy-robux-today_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/robux-claimer_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-hack-roblox-passwords_GM431946152.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_off0000498f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498F 25932 bytes
SHA-256: 217837681ca6eba17baeb093ef3f4384b0a83d54a107d426f0f565e1c4804640
font_01_sfnt_off0000864c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864C 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off0000900e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x900E 18660 bytes
SHA-256: 34bafee9e9fa54cbec66c73e5c60b6b360676a94b3a9814b04b79417a2c6596e

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