Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bd61806cc0e8611…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 10:46:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 79854712054f42124c982f7761ea4d75 SHA-1: 76785fb70f3f140bfca3de4cca40cb9d5fdee8c6 SHA-256: 4bd61806cc0e8611dc7f421454716c967503fd9d07f8345e3bbaa739d37efc5a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a heuristic firing for linking to a game hack lure, directing users to the URL https://netcdn.online/app/431946152/lots-of-robux-game-hack. This URL is likely part of a phishing or scam campaign designed to trick users into downloading further malware or providing sensitive information. The document body also contains embedded URLs that point to similar scam-related content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/lots-of-robux-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/roblox-e-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-esp_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.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_off000050d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50D9 26184 bytes
SHA-256: 00c240e6597e1f09026e504e1a796cd1f5f243094dafe93b17b44a0e72e41478
font_01_sfnt_off00008c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C87 17952 bytes
SHA-256: 15d841c4e586d0ad4ef984c3fe87cdc5c0f17f998b76c5925d27cfadcec23376

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