Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1ed997620452cf3…

MALICIOUS

PDF

44.5 KB Created: 2021-06-02 22:04:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 94eff2afa3304ef9608075189cdd64cf SHA-1: 2255a7cf3b85e74ceb58cbce97d16a2549663e54 SHA-256: c1ed997620452cf3c584362fbc61baae9792b84916fa30c0c611ef2aafdee1d4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.xyz/app/431946152/hack-para-roblox-prison-life-game-hack PDF link annotation
    • http://inextpresident.com/images/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://inextpresident.com/images/game-coin-master-hack_GM406889139.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
stream_004_off00004faa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FAA 25440 bytes
SHA-256: f9d24067b834e9e1e1537ad08f151795cccde174fcb6a5da5c1e301585a9b309
font_01_sfnt_off00008ab2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB2 18456 bytes
SHA-256: c933d3cd3018fea5d688b3a245e3f6fdfd4d494a1f23445cf037f2e3480b62c4

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