Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ac7f8ec07a5289…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 10:22:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ffe0f84e7f8d498b9d2f30cfa991e5e8 SHA-1: 10087e2740577cbd51e6db7a297677922669ab32 SHA-256: d7ac7f8ec07a5289ab05703ba00c94b2d961df9fa1151a63665d20aa1cd276d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and generators. The primary URL identified, https://netcdn.online/app/431946152/rbx-roblox-game-hack, is associated with these malicious redirects. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious site, likely for a phishing or malware download campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/rbx-roblox-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/pubg-2021-uc_GM1330123889.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/tiktok-free-update_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.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_off00004e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7E 24900 bytes
SHA-256: 394bb0f02d4f8daf4e45eb657f68607f2c1ef08bb9a0bbd1a2efc526f5356987
font_01_sfnt_off000087a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A7 17784 bytes
SHA-256: b5f4a847199c5858993cc7b96674f5fc7fdb993d36e54c452d2822089e03f31f

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