Malicious PDF — malware analysis report

Static analysis result for SHA-256 49348a2cad470f92…

MALICIOUS

PDF

34.7 KB Created: 2021-06-25 19:27:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7269a31dbeb13a88851103070d527439 SHA-1: ecc6cacdd538c236109bcd93451b6cd1973487e4 SHA-256: 49348a2cad470f921629d3ed715a4f28e03ea0a5edd01b18f530a41350313a29
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious URL. The document body also contains the same URL, reinforcing the lure. While no scripts were extracted, the primary function appears to be directing users to a potentially malicious site for 'free generators' or 'hacks'.

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/roblox-dragon-ball-final-hack-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-apk-android-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/descargar-hack-roblox-sin-virus_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/codigo-hack-para-robux-inspeccionar_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-in-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-create-your-own-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/counter-blox-roblox-offensive-hacks-marca-los-objetivos_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/best-free-t-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/claim-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-do-you-install-minecraft-for-free_GM479516143.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_off00003082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3082 22504 bytes
SHA-256: da51c658cf91116f49dc8382e2a7105ba2d202361c8ba85da730e70702be8bb9
font_01_sfnt_off00006292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6292 19108 bytes
SHA-256: e3d78328ebb87a47aea2c8cd1fe099f1e55048df08d703d1a547e75f411fecf2

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