Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29b0dca2ec91f0e…

MALICIOUS

PDF

43.0 KB Created: 2021-05-14 00:42:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c02f0ad9d041df21d9ffe55448061a84 SHA-1: 513667eac6b3693cf7cb125ac1b621e914f44540 SHA-256: f29b0dca2ec91f0e691438189e24d6a009e4cf3e0bc6989faa5c26e6d4b8d14e
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which are presented as game hack generators or free spin lures. The presence of a fake CAPTCHA or human verification prompt indicates an attempt to trick the user into interacting with these malicious links, likely leading to further compromise or scam. The document's structure and content strongly suggest a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/406889139/coin-master-hack-ios-without-verification-game-hack PDF link annotation
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/oginject-co_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/robux-redeem_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7B 24812 bytes
SHA-256: 2829df10a429596253a99673667340050dabc07cc37c5c8d7579beaf7cab627e
font_01_sfnt_off00008567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8567 18356 bytes
SHA-256: 7ef4325f158cf31b011cc902030ab99f5d38ab06b2a6580cc11f556557bfb0ea

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