Malicious PDF — malware analysis report

Static analysis result for SHA-256 5784176087c0246e…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 12:47:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c942e3c64bb44f938c348aec3764ebba SHA-1: 95eb44271b2c24aa55cf512dd50aae16e6eadcb3 SHA-256: 5784176087c0246ef5201530e03aef1426ab1c470492fc6a6e8fd7a3ca28d9b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free generators, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/479516143/minecraft-pe-texture-packs-free-download-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/giftbux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/what-can-i-do-with-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-for-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/chromebook-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-building-games-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-packages-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-no-virus_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/what-can-you-do-with-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/robux-game-com_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/all-roblox-free-items_GM431946152.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_off000030df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DF 22084 bytes
SHA-256: 1f520e75d7baf970982b8d1ddd57bf65191d9071435b814154aee4064ef6bcb0
font_01_sfnt_off0000617f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617F 19252 bytes
SHA-256: fc0a374bdf5f2f3ca285f1c9810f4359537382902bf69b7898b94bb6cd63fc8b

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