Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb685e73e6c18674…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 17:50:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7aaebc2112b1b9e31be33c0bdbe4a34b SHA-1: 162bea44d1cac13cab17f9c1d632128ba40af5a1 SHA-256: eb685e73e6c18674e7f16225fdc5de927244526b3d2aa03b9301679b6a9b08a9
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/earn-free-spins-for-coin-master-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/filtered-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/are-there-any-roblox-hacks-that-actually-work_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-admin-hack-download-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-royale-high-hack-club_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-20219_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/martian-lettuce-coin-master-free_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_off000031c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C3 23132 bytes
SHA-256: e6cb30c846ea5f4e83db464d6661e53d72baf5f117260c207b9b46df10699c89
font_01_sfnt_off00006592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6592 18176 bytes
SHA-256: a3011d9bf90decd085a7c79893b4f26ea9584df138150b3f8b14f9f610645001

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