Malicious PDF — malware analysis report

Static analysis result for SHA-256 a10fad85398c88a6…

MALICIOUS

PDF

36.7 KB Created: 2021-06-26 11:40:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6cad4175e1a5d73d5c327c392c9689c SHA-1: 27bd081ec6691843cab1b1dd3fc1f14c60021047 SHA-256: a10fad85398c88a6ef0b78c30a8645ca5570675fa19d1ff4d88552064077bd23
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game generators and hacks, directing users to a known malicious redirector. The document contains multiple embedded URLs that lead to other PDF files, likely serving as further lures or part of a download chain. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-free-games-to-play-now-game-hack In PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/hack-robux-pc_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-free-hats_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-do-i-get-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/robuxian-free-robux-code-generator_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/robux-apk_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/fake-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/i-want-to-play-roblox-play-free-online_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/make-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-free-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-game-pass-for-free-roblox-youtube_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000369e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x369E 22808 bytes
SHA-256: d00e32c5e7359f43884325a0974048346f4dd6369aabb34947173b86ded7a158
font_01_sfnt_off000069af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69AF 19408 bytes
SHA-256: 1c7eb0e6e0e4cd5c8dce16c380649546577224d071743640a2093b907b5db784

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