Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d72c55f95020c26…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 12:23:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ecaa11942afc275b9cf60173589174a5 SHA-1: 7fc796b26d69db04d17549f9b44de17e7cf8d382 SHA-256: 4d72c55f95020c264499595dd5f23a622f15be1d5269782d9406cb17ece37b9d
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/coin-master-free-coins-and-spins-link-game-hack PDF link annotation
    • http://library.itekes-bali.ac.id/repository/how-to-hack-roblox-accounts-on-pc_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/walkspeed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-on-roblox-acounts_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-car-crushers-2-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-roblox-animations-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/mining-simulator-hack-roblox-anfr_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-roblox-promocode-for-robux-july-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-knife-capsules-check-cashed-v3-speed-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-old-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/script-cheat-roblox-mad-city_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-generator-xyz_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-meep-city-free-plus_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-cheat-engine-681-scripts_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/cool-free-roblox-girls-hair_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/100-free-spins-coin-master_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_off000030b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B4 22920 bytes
SHA-256: 2bbdde63ee87b9167c6d7bfa99b5e6f21ac9b07d831015f6214b596966bd030a
font_01_sfnt_off00006418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6418 18520 bytes
SHA-256: 4a00b74065c845a8261d6cc4e101dd5c2a388e973e7fc9ab28e7679a34d9d18b

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