Malicious PDF — malware analysis report

Static analysis result for SHA-256 1542dab7e73aaa54…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 11:03:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 600248efa2af05a95a22394aab8fa015 SHA-1: 4ffb3f241389364dcc0ebde04934d7e8021b7d8d SHA-256: 1542dab7e73aaa54f9a1b893740014b58cf53cba860c18878c51e06bc9c9abe1
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/roblox-hacked-version-download-game-hack PDF link annotation
    • https://www.simplenepaltravel.com/userfiles/files/roblox-hack-script-download_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-robux-generator-online-no-survey-scratch-studio_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/hacker-robux_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/pubg-mobile-uc-2021_GM1330123889.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/hack-to-beome-supertall-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/roblox-walk-through-walls-hack-download_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/hack-roblox-command-prompt_GM431946152.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://www.simplenepaltravel.com/userfiles/files/coin-master-hack-version-download-2021-ios_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_off000030da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DA 22172 bytes
SHA-256: dacc075e4b214505c8b70ca12d41c7406682588f8d7a02634a57a5f62f66cbff
font_01_sfnt_off00006225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 19416 bytes
SHA-256: 9d5287d246acb7a414ddd994cb225a807af433da1dde6decd511f50bd1ef31e8

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