Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ede20283f56187…

MALICIOUS

PDF

46.3 KB Created: 2021-05-23 07:36:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9b870de61820faf19cf8f8a67e0f874e SHA-1: c01df404d53e49099cf862065fa68a877631ccb2 SHA-256: 29ede20283f561877d538f587646420b4916bb3fc50829ed32913930d822bb7f
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 0.7769

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/479516143/free-minecraft-skins-game-hack PDF link annotation
    • http://bogatyr.com/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://bogatyr.com/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://bogatyr.com/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32AB 26936 bytes
SHA-256: da0caf9cac098d4b9b34b772808c7c39b991f497ac5a494f60f4d488a38ae535
font_01_sfnt_off00006dad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAD 7936 bytes
SHA-256: 218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e
font_02_sfnt_off000086d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D6 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off00009562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9562 17740 bytes
SHA-256: 14879269a8559ae987a62032ee6d1223d63a0cf7b4214af4691cfda5a28d5ffa

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