PDF static analysis report

Static analysis result for SHA-256 ede3fed88aedfed5…

SUSPICIOUS

PDF

38.1 KB Created: 2020-04-14 17:21:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: d2828210deb8ddd95bc2318707eeeccd SHA-1: e6365cd65a857ea7e0bc0bf22970735ec04c513f SHA-256: ede3fed88aedfed5cbef6db46f1d8291cf7c29111e6dfa4feb52bbfddae180c4
44 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by an ML classifier with high confidence (0.997868) as malicious. It contains multiple embedded URLs pointing to external PDF files, suggesting a delivery mechanism for further malicious content. The document body, though heavily obfuscated, contains text related to 'Business communication today 7th edition pdf' and the authoring application 'wkhtmltopdf', likely a lure to trick users into downloading the embedded files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 http://navice.org/uploads/1/3/0/7/130776724/130776724.html#business+communication+today+7th+edition+pdf PDF link annotation
    • http://kikolett.com/uploads/1/3/1/0/131070590/zubidilenivu-nowifugoxet-liludixenafi.pdfIn PDF document text
    • http://stephenclarkflute.net/uploads/1/3/1/4/131483143/kamupewilonupeb.pdfIn PDF document text
    • http://rijkewijnen.nl/uploads/1/3/1/3/131380811/2447855.pdfIn PDF document text
    • http://lindal.me/uploads/1/3/0/3/130323996/3590529.pdfIn PDF document text
    • http://bakedbeautiesbooking.com/uploads/1/3/0/8/130814009/9173817.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C25 8684 bytes
SHA-256: 8b98241223ab4c7c3a2cb107c1e8edc6524825c8dc18d7424ddea75443db46ad

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