Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc0656e73e5568d…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 00:18:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c4d897a2bd80468b8fba29224e1d799b SHA-1: 48540d266980b8fce05669009dc18ad6a7dc597f SHA-256: bcc0656e73e5568ddb0cd4c8262e1bd638060bc94e75c2b9f4267a4512bfe762
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links, including one to 'netcdn.co', which is flagged as a redirector for game hacks. The document body also contains similar lures, suggesting a social engineering attempt to trick the user into visiting malicious websites. No scripts were extracted, but the presence of numerous game-related lures and a high ML classification indicate a malicious intent to redirect users to potentially harmful content.

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/cheat-codes-for-phantom-forces-roblox-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-assasin-vip-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-shavaco-do-song-code-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-2021-easy-no-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cheat-codes-for-roblox-on-the-games_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-group-join_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3314 22288 bytes
SHA-256: 9d60f103082161cd8317e80d347b3da8254055ec17435daf9d34a459b0c62391
font_01_sfnt_off000064a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A8 19508 bytes
SHA-256: e6f93c4f2af581896f7da6bc4e7e79c96874770138c9b48f4511cbe08c91d1f6

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