Malicious PDF — malware analysis report

Static analysis result for SHA-256 601157e468071b63…

MALICIOUS

PDF

35.6 KB Created: 2021-07-05 17:32:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2dd9bb8ccd3481b3eeeb72e1e3155d14 SHA-1: ea81e831a70ad83f2d29f4d73b15446296c4d6bb SHA-256: 601157e468071b63d6d3997dbdef0a4d7f3cb0bf3a1e3faa58a7a6e29da92aea
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 0.9980

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 http://netcdn.tw/app/406889139/coin-master-blogspot-links-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/pubg-uc-buy-ksa_GM1330123889.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-hack-yourself-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-for-android_GM406889139.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_002_off0000331d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x331D 23428 bytes
SHA-256: f58413a582616e5dd444ae67b52a51ab05d314083563e919ec208970f2047dec
font_01_sfnt_off00006800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6800 18472 bytes
SHA-256: c615bd6496d0d9fb6cf20dea558ce4077100b4d17ed7e8289feb1170a68b622a

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