Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e159e2b164c4fdb…

MALICIOUS

PDF

33.9 KB Created: 2021-06-20 12:01:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f54811352ef49657fd1a6969d6c7a375 SHA-1: 6e45d773ecb6677edf30d245fcfc9e341ee9a64f SHA-256: 9e159e2b164c4fdb2e52b63634ac50f538da56c3a0b07e654080d8baea0970d7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox, and includes a link to a website that likely hosts malicious content or further redirects. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a download button lure reinforces the malicious intent. Although no scripts were extracted, the document's structure and embedded links suggest it is designed to lead the user to a compromised site.

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/hack-para-roblox-en-espaol-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-ninja-shirt-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-shirt-templates-roblox-lyon_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-no-virus_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/slx-buy-free-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-and-limiteds-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-instantly-2021_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_off00002e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E23 22348 bytes
SHA-256: c2c174b9c2239d2ed044a200806b3a898b58e083e510fd4a6d098fc04269b775
font_01_sfnt_off00005f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F89 18988 bytes
SHA-256: 2f69ed901da9b440f4d7a5575c5fa370eeaff2518dff61155c6fe2b2a6594d06

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