Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eceee7cfcb65a4c…

MALICIOUS

PDF

34.5 KB Created: 2021-06-19 22:28:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 81bf57a92c3f96ad5949d045831189b3 SHA-1: de215a89ecb7499c2234a7a6d78d851e09991ed3 SHA-256: 5eceee7cfcb65a4c931d6089779e7a2b682518606677d00ba282020710215dc4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to free game hacks and currency, specifically targeting Roblox. The primary link, http://netcdn.co/app/431946152/sans-shirt-roblox-free-game-hack, is flagged as a high-severity indicator for a game hack redirector. While no scripts were extracted, the document's structure and embedded URLs strongly suggest it's designed to trick users into downloading malware or visiting malicious sites.

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/sans-shirt-roblox-free-game-hack PDF link annotation
    • http://digilibfisip.uwks.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-generator-without-offers_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/robux-free-offers_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-card-codes-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-free-minigames_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-20210-robux-download_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/use-cheat-engine-on-roblox-tycoons_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/money-hack-ultimate-driving-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-no-verification-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/get-free-robux-download_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-free-robux-2021-august_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-no-hacks-or-inspect_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-create-roblox-hack-place_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-got-free-item-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-jailbroken-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/black-jacket-with-blue-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/can-you-get-roblox-on-switch-for-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_off00003019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3019 22428 bytes
SHA-256: f2c5ef49921a2651a9831587fee11bbc2da90a8146583be60cad999f94ef1bc4
font_01_sfnt_off00006207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6207 19040 bytes
SHA-256: 12f00d77751ab76cb97882376d0a99e75da48af1588c7e3520ca8dc079c1925f

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