Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7d5894bc898ea5…

MALICIOUS

PDF

34.2 KB Created: 2021-07-01 23:18:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 863638e53c0a070b9be0199d3e533020 SHA-1: 81546cce66126b97a5794fc1b6bbaf4c582a2a7e SHA-256: dd7d5894bc898ea5e8a6fdf20f676cebc9287e42f98b6ceb7765029590ea8cbd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The embedded URLs, such as http://netcdn.co/app/431946152/how-to-hack-into-any-ones-account-roblox-game-hack, are identified as malicious redirectors. The document body and heuristics confirm the intent to lead users to potentially harmful content, likely for credential harvesting or malware distribution.

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/how-to-hack-into-any-ones-account-roblox-game-hack In PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-guns-r15-script-hack_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-bonus_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/all-roblox-gamepasses-for-free_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-hack-for-free-robux-without-veirfication-required_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/linkmon-free-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-images_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-get-free-robux-crard-codes_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-cheats-xbox-one_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-make-a-roblox-hack-in-visual-studio_GM431946152.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_off00002ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE3 22016 bytes
SHA-256: 879c9760f45cd6445c6cd1214c614fb94f9f57dd01095f20eac8fc31a09ca362
font_01_sfnt_off00005fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA3 19244 bytes
SHA-256: a0674fcf112b1e7e0d5fe584888e86b1bdb03a48b85ce7cf582ecc5e09288e86

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