PDF static analysis report

Static analysis result for SHA-256 5b918c08dad436d6…

SUSPICIOUS

PDF

35.8 KB Created: 2021-05-20 20:02:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9613ae07fd8f3674c87a4259d284c602 SHA-1: 505ddc5668055ecabdc64a1a7fad54a5c52eb246 SHA-256: 5b918c08dad436d6f2322df62656a07e0d8b0a59298d05f2f01893fcb1d31267
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a prominent external URI pointing to domains associated with free game items, likely as a lure. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded links suggests an attempt to redirect the user to download further malicious content. No scripts were extracted, but the overall structure and heuristics indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 3

  • 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-bedrock-server-game-hack PDF link annotation
    • http://klinkeridee.de/images/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://klinkeridee.de/images/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://klinkeridee.de/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://klinkeridee.de/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://klinkeridee.de/images/static-moonactive-net-rewards_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_002_off000032af.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32AF 24292 bytes
SHA-256: cae06714d69bedd666a10faf06ad97e92bebffbfde72d45141740949be85585e
font_01_sfnt_off00006a36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A36 18384 bytes
SHA-256: 91126a517b1f6fe08fde59393e56e1de7cf034d0066f3393bf7fbc33808ed0e4