Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8842a3f513fda7…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 06:02:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e6b55e4d709611bdd603e9c928f4b4d5 SHA-1: c9af456c18c760931627f242dd44bab466276911 SHA-256: 9e8842a3f513fda71b77a063b27a0aa5b27bd0390b666508516cd15cb800b63e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a game hack, directing users to a URL that is flagged as malicious. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or downloads. No scripts were extracted, but the document's structure and embedded links strongly suggest it's a phishing or malware delivery attempt.

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/mcpe-master-coin-hack-apk-game-hack PDF link annotation
    • http://library.fisip.upnvj.ac.id/repository/dumptruck-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-speed-hack-roblox-with-artmoney_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-free-no-install_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-spins-coin-master_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
font_00_sfnt_off0000303f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303F 22248 bytes
SHA-256: c66f4d016816d5e6a39f1608a6f136ff2108600eaa577299f22a1ae82bf88665
font_01_sfnt_off000061c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C1 18180 bytes
SHA-256: a4b029fe06f847910f4f73310ba83e3acfc8604b764c8cc50fdbf70b61a3fcde

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