Malicious PDF — malware analysis report

Static analysis result for SHA-256 697751f02dacbb9e…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 23:14:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 574745f7cdeb1fe0a510c22278e068de SHA-1: ebcd7975a4770a207cbef0ce3a4ec202c748f0a4 SHA-256: 697751f02dacbb9ee076322ad2c31902aac999cf3a9149064421c11954a7ce76
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with a primary focus on 'game hacks' and 'free generators'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates that these links redirect to malicious content. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to game hacks and URLs, reinforcing the lure. The primary IOC is the redirect URL, which likely serves as a gateway to a malware payload.

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/hacks-roblox-game-hack PDF link annotation
    • http://abdinusababellibrary.ac.id//repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/robux-website_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://rblx.landIn 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_off00005033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5033 25132 bytes
SHA-256: 1b807ced7b66e7d8a9cb1fcea21161fb47202e14f3bcff78a18e57ea02d0a484
font_01_sfnt_off00008a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A66 18184 bytes
SHA-256: 7ce99462d7db30d9d686f16fdffa062e1f918298e62a3f0da8fa4bf2d2fabb79