Malicious PDF — malware analysis report

Static analysis result for SHA-256 245096cd6b2639be…

MALICIOUS

PDF

34.5 KB Created: 2021-07-01 01:02:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dfd0300fd0c0fe3b4995a24d6f96b0e4 SHA-1: 7afcb0559b50f00e7eafb4882a19e36989741689 SHA-256: 245096cd6b2639be5d00a344d19d194f20d235e294651624f3c25e0e61358f8e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or generator. The primary link, http://netcdn.co/app/431946152/roblox-free-animations-ninja-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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-animations-ninja-game-hack In PDF document text
    • https://ethraa.ae/userfiles/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-prison-life-how-to-hacks-jjsploi_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-roblox-codes-twitter_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/hack-master-coin_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/earn-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/get-gift-cards-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/hoiw-to-get-free-robux-on-promotion_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-root-hack_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_off00002fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC9 22228 bytes
SHA-256: 891820fddb2d9a41659680d6d72afa25ff57bac3454f07e0b45c5e1c61c43688
font_01_sfnt_off00006120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6120 19324 bytes
SHA-256: 830b8de8dd4a8aadbb58d2eb4b747a40b40122fc19476a40a03550d2fce61765

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