PDF static analysis report

Static analysis result for SHA-256 791c8f4dce974a50…

SUSPICIOUS

PDF

37.9 KB Created: 2021-05-22 10:36:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 145f1d5aaca42b3acbb601761d15a510 SHA-1: 1f1c78b2cfbab8e0a3a57fa97ef206d10a54f43f SHA-256: 791c8f4dce974a500d44879dbdb228267961adae6a1d54e4044046236dc41c82
50 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to obtaining free games or in-game currency, such as Minecraft or Robux. It embeds multiple URLs pointing to potentially malicious content, including one that is explicitly flagged by an ML classifier. The presence of these lures and the embedded malicious URLs strongly suggests a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 4

  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/how-to-get-minecraft-windows-10-for-free-2021-game-hack PDF link annotation
    • https://www.yewtreealpacas.co.uk/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/rbx-hut_GM431946152.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33EB 29652 bytes
SHA-256: dd97ea9e9017319a00b141aeb977b36a8fe15b468c6dc2bbd07c3619eba6bd29
font_01_sfnt_off00007185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7185 18648 bytes
SHA-256: 354bb2c2c4fae14b5c7df711c8f5a389dfe67cd832e4a835714c7b2f7ea7fa4d

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