Malicious PDF — malware analysis report

Static analysis result for SHA-256 eadafc41230426f5…

MALICIOUS

PDF

34.2 KB Created: 2021-06-27 00:30:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8dc35a6ad52556c0950b6a3e8b38163b SHA-1: ad3a9ec6af2134ff4790d7e3d86d253f72eab9dc SHA-256: eadafc41230426f5b7224fddafa98bc7cc645da3419a231a4e8c0c0556f14787
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/sword-burst-2-roblox-hack-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-dot-xyz_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-cheat-way-up-volacnoe-wood-tycoon-2_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-boombox-highschool-2-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-dragon-ball-online-stats-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/who-to-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-ohne-handynummer-deutsch_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-hack-download-2021-android_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/mods-for-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-run-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-34-4-hack_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_off00002f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F87 21660 bytes
SHA-256: 035f874fcff17b5c77d3626b2948dc8f3a072142961f880dac316ccbc1312246
font_01_sfnt_off00005f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F60 19360 bytes
SHA-256: 7d26c8c8a5b618dd8c6a017d31e7ddcae87d05491e8776adf100e6e57ab97cb0

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