Malicious PDF — malware analysis report

Static analysis result for SHA-256 e07ea85c7cec0472…

MALICIOUS

PDF

49.2 KB Created: 2021-06-03 11:08:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 28a0ff8b3d5c50307436e483f60ab88d SHA-1: b5e8115d02645dd249a30f142fee8c41ee2b70df SHA-256: e07ea85c7cec0472e3bb869a2c7c5cf79dba03076d64a415f34d09f66f9a60be
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a free generator or game hack. One of the primary links, https://netcdn.online/app/406889139/free-spins-coin-master-facebook-game-hack, is flagged as a malicious redirector. The document's structure and embedded links strongly suggest a phishing or scam attempt, likely leading to further malicious content or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/free-spins-coin-master-facebook-game-hack In PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/tiktok-free-gas_GM835599320.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f04.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F04 25564 bytes
SHA-256: 688a01b149ad0b71255b02e057b7522ea4e043794260d714f5f0e4d3dd0712bf
font_01_sfnt_off0000890f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890F 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off000092fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92FA 18212 bytes
SHA-256: 50de993b58e9e37548682fab5b814d15972a3e6e828789899a8bd37e3a77ebbf
font_03_sfnt_off0000b4c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4C5 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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