Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db0ffd8b045b948…

MALICIOUS

PDF

46.5 KB Created: 2021-05-17 17:18:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e45cb76b1ee484ce0424952153b4b31e SHA-1: 7d29fa8130c1d5ce5688f33d0ac214fcf7cac789 SHA-256: 9db0ffd8b045b948867d6063b5ce9e8ae45452cdaa44849808e6e49f00856faf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free game hacks' or currency. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-to-get-free-roblox-items-game-hack. The document body, though partially corrupted, also contains this URL and other links to potentially malicious PDF files hosted on a subdomain of e-learning.man4pandeglang.sch.id. This suggests a social engineering lure to drive users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/how-to-get-free-roblox-items-game-hack In PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/robux-premium_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://e-learning.man4pandeglang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-download_GM406889139.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_off00004e71.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E71 25320 bytes
SHA-256: b8c01f932753e6bbdd2fe21a2371d13b783f21bc24d18c9689a550781e999d8b
font_01_sfnt_off0000891d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x891D 2872 bytes
SHA-256: 5a38050e56bfed6ba013c4835499ae05f4b57b22e606c9172dd4bc2ae7fd1207
font_02_sfnt_off000092d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92D9 18476 bytes
SHA-256: 8f186cfffdac824b8af051e9c3258ff2c6bc2a624daaf9438b2e2390608ff8bc

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