Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b98b9dbf9c5807…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 10:02:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 41198e7c6d059caf79feaf70fdb086b8 SHA-1: bab7dc6229767e0d44745493baae597f46958228 SHA-256: 06b98b9dbf9c5807502e97a964ef0e8bc62e0de482b1f7f80d8afa50d14fbe8f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to a website offering 'free generator / game hack' content, identified as a lure for malicious activity. The presence of a download button heuristic further supports the malicious intent of directing users to external, potentially harmful, resources. No scripts were extracted, but the embedded URLs and redirection heuristics strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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/406889139/coin-master-links-for-free-spins-game-hack In PDF document text
    • http://digilib.unla.ac.id/repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/earn-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robux-matchcomfree-robux_GM431946152.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_004_off00004fad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FAD 24824 bytes
SHA-256: 30149d0863a081e9722d4a8b2023fd8c7c407c240a7ba78fa1690f11eafa2b18
font_01_sfnt_off000088ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AC 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off0000925f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925F 18056 bytes
SHA-256: 95118de0f1fa2d9d8d6d34d7ce9f6e9c56d43c25fce4d2a4bd556d275959b9e0

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