Malicious PDF — malware analysis report

Static analysis result for SHA-256 c67ecb15fb49a8a0…

MALICIOUS

PDF

45.5 KB Created: 2021-05-13 08:00:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 306c27fd53233e7e1eab5fac450e1a61 SHA-1: 64229f7837c5c530a117cbeba5c4a074edf91564 SHA-256: c67ecb15fb49a8a0fd1e1b0c7c9dd586a397a143fc2844db38d4e3876463e0c5
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 0.9980

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 https://netcdn.xyz/app/431946152/hack-robux-game-hack PDF link annotation
    • http://greasley.website/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/coin-master-app_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/coin-master-free-spinv1-0apkpure-com-apk_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
font_00_sfnt_off00004969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4969 31184 bytes
SHA-256: d49a3d23aa062cc79358cde036d7154c06fe327f7e899660a96413d463537174
font_01_sfnt_off00008fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBD 18248 bytes
SHA-256: 9805bb7d0eadd4beaac6fd3b5d5d8b6e8e5d33c97ce909732e364f826719e5d2

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