Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95379fd87c9d4eb…

MALICIOUS

PDF

34.0 KB Created: 2021-06-29 18:32:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9454cb77c4d40a1d2cdcdc0f4905eed1 SHA-1: 09d3ca00ba534de7db2f36c9eb1dde5257e11734 SHA-256: a95379fd87c9d4eb35d5e553a69a188e535d7f28871dad755a5840e83a822b3a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple lures related to game hacks and generators, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the presence of external URIs and game hack redirect lures. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-free-roam-games-grand-bloxs-game-hack, which likely serves as a gateway to a malicious payload or phishing page.

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.co/app/431946152/roblox-free-roam-games-grand-bloxs-game-hack PDF link annotation
    • http://library.fk.upnvj.ac.id/repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-roblox-generator-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/robuxian-com-free-robux-code-generator-roblox-code-generator_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-pizza-place-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/robux-hack-method_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/easiest-money-hack-february-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/website-roblox-cheat-new_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hack-roblox-sped_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/admin-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-gold-cards-link_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_off00002dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCF 22368 bytes
SHA-256: 96414d12190a8cc58d6d8b9d80a571b5704e3bdd634b760e2a65bdf3abb1a8cd
font_01_sfnt_off00005f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8E 19084 bytes
SHA-256: 7f53c96b7dde97f83f9ff7e728740b3e443511a0e50de1be5a18fcfad441cfdb

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