Malicious PDF — malware analysis report

Static analysis result for SHA-256 13651af73f927239…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 06:54:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bbea76873632555a4ce601f304c87d51 SHA-1: 7453e97489bdf5f298b5c447e5bc20ccd2c496b8 SHA-256: 13651af73f9272397284b67371bd58e950a0177aceee29bafb2b24836b288b05
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/431946152/how-to-become-a-hacker-in-roblox-game-hack PDF link annotation
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/free-download-roblox-player-for-pc_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/roblox-kicking-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/free-robux-forumcom_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/roblox-launcher-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-code-2021_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_off00003103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3103 22116 bytes
SHA-256: 82e7c46856c85711c574647b797e4e9f48b3ad04eea2ba363bf925165fefb33c
font_01_sfnt_off000061be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BE 19080 bytes
SHA-256: 743517270bf20e3fdbac5f31fc5184e0e8be1cfb370cc187773a8eda3f974f51

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