Malicious PDF — malware analysis report

Static analysis result for SHA-256 187a2e533051d83e…

MALICIOUS

PDF

43.0 KB Created: 2021-06-03 05:07:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 631c9b4e6e2fdd82f3aa0437a4037c37 SHA-1: d5abc7462340acf6c9f3a17a43365145ab3b2239 SHA-256: 187a2e533051d83eefa061bbaf2c6d61dec6c77a7ee6fdc5cb42d56ef2e69bd3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-email-rewards-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-coin-app_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-re_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/pokemon-go-free-coins-without-human-verification_GM1094591345.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-with-no-human-verification_GM431946152.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
stream_004_off00004d9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D9C 24464 bytes
SHA-256: 984b3bd55b64c09070e430cc6c6fe2fd7c3347eaaf5f85d7e90e67bfa66a910d
font_01_sfnt_off0000857d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x857D 18216 bytes
SHA-256: e61fab9f8d99b46953a38bd9174b367a9798fa55ae4550c291f399d0802cd730

Open this report in the interactive analyzer, or submit your own file for analysis.