Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee9e18e99171dae…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 09:30:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 61076edf84ae2337d27c4ddd695d8051 SHA-1: 6a42428a247513eb11ef96f829724fc1132419a5 SHA-256: 8ee9e18e99171daebc6e69518e661b55a16a47283e0dee93cc0b49e56f7ffddd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a website offering a 'minecraft-pe-hack-client-ios-game-hack'. This lure, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or scam attempt. The embedded URL is the primary indicator of malicious intent, likely leading to a further stage of compromise or malware delivery.

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/479516143/minecraft-pe-hack-client-ios-game-hack In PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005378.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5378 25500 bytes
SHA-256: 9c70c0d23f64a79d5dd38143a0cafb74265a3787eed2a5e34362e0e86274db9f
stream_005_off00008d45.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8D45 18108 bytes
SHA-256: e50e7ffc92e693739b6a1d5d28be47030cd8670fbb45c47044b0ac4b43b5d3d6

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