Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ad0c5540a86c7a…

MALICIOUS

PDF

41.6 KB Created: 2021-05-19 07:04:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6966a809a7f35126ca69503071ba3619 SHA-1: e717c4e2a0202253b1628a17e70efd0f61848ae8 SHA-256: 94ad0c5540a86c7a80ca943c4f64aef061be69c1b213a77533ceaafc72dd2804
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, specifically promoting 'game hacks' and 'free generators'. The heuristic PDF_GAME_HACK_REDIRECT_LURE strongly indicates a social engineering tactic to trick users into visiting malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence suggest a malicious intent to redirect users to potentially harmful content or downloads.

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 https://netcdn.xyz/app/406889139/hack-coin-master-spin-apk-game-hack In PDF document text
    • https://www.apollowebdesign.in/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/is-free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/krnl-download_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/lots-of-robux_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_off00004a65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A65 24092 bytes
SHA-256: c20313aba37282c503e949c7936806bdd2896e047879f5c29c3772c3f5c4eb17
font_01_sfnt_off00008151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8151 17892 bytes
SHA-256: 38303170ac9c6ca0f2851823f29ecc879fead5c3d3518135c6ab8fad8fa3f0a9

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