Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd3e7db2ab5c1a6…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 16:04:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 876388a55493531923af4b3daf8cdafc SHA-1: e040bb0ae854ff3673395ca5dbb21ed4b96b7a65 SHA-256: bbd3e7db2ab5c1a68695cede94f891eddc353aa975d785d15afeddecb0e88319
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free in-game currency, directing users to the URL http://netcdn.co/app/431946152/how-to-get-free-stuff-on-roblox-catalog-2021-game-hack. This URL is flagged as malicious and likely leads to a phishing or malware download site. The ML classifier also strongly indicated maliciousness.

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/how-to-get-free-stuff-on-roblox-catalog-2021-game-hack PDF link annotation
    • https://inspiration-modellbau.de/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-roblox-avatar-gear_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-genrator-no-human-ferfacon_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-download-pc-windows-10-free_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-pet-free_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-gift-card-hack_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-get-free-robux-in-roblox-no-hacks-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-do-u-get-free-robuxs-on-mobile_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-anti-crash-hack_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/codes-for-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/is-roblox-free-on-xbox-360_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_off00002fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB2 22256 bytes
SHA-256: a5d8f5c71015c6c508d153e087b477f977c5f1f361dc29958e5512078e39fd44
font_01_sfnt_off000060fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 19272 bytes
SHA-256: 5087c5e1306a915354a7cbce8818257d21b595cfbfa299b99cdd84f1b1ac5ffb

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