Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea37070b972ca614…

MALICIOUS

PDF

52.1 KB Created: 2021-06-03 22:34:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 554b86745f614255e01fc4727fd5c118 SHA-1: 7d74b6ac5aeb57c5b77ea1200f6b6c23e435ad4c SHA-256: ea37070b972ca614a353aadcade6272c31273172b4c5baa5a755f30dcbb8a6d3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Roblox Robux Hack Generator" and includes a high-confidence heuristic firing for a game hack redirector. The embedded URL leads to a suspicious domain, likely serving as a landing page for a phishing or malware distribution scheme. No scripts were extracted, but the document's structure and embedded links suggest it is designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9464

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 https://netcdn.online/app/431946152/roblox-robux-hack-generator-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/is-the-robux-hack-safe-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000563f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x563F 24116 bytes
SHA-256: 205ee96b376094fd1e973693ac61000353bbd6e4cee0cbd293eaa5a56e9451c1
font_01_sfnt_off00008d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D97 8252 bytes
SHA-256: 534f70f9892c3ab001244bca9ed5a591a95336d4b700c9b3d01fc37807b2870f
font_02_sfnt_off0000a8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8AE 18428 bytes
SHA-256: bdac85b283ea9edec09d9f64e9cfc1f18bf7d6a92d05f58e23f3db2f02fbf028

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