Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f68ab5edf6bbc2…

MALICIOUS

PDF

33.8 KB Created: 2020-04-19 16:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 81f881f3d44ea9f8434779993bfb57e5 SHA-1: e572635a84114fcd85d71d0081f0b88fa5aff317 SHA-256: f3f68ab5edf6bbc27a6cdd2f25ba6e8191df2bc4d6f10b641f5dbf755694e07e
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. These links are presented under the guise of a PDF merging tool, suggesting a phishing or malware distribution attempt. No scripts were extracted, and the document body is largely unreadable, making it difficult to determine the exact payload or further actions.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://gianamorettiproductions.com/uploads/1/3/0/6/130639683/130639683.html#assembler+plusieurs+pdf+en+un+seul+mac
    • http://nataliegracewagner.com/uploads/1/3/0/6/130603982/1017090.pdf
    • http://swissluxuries.com/uploads/1/3/0/4/130435888/5e74728015.pdf
    • http://outsidethebeautybox.com/uploads/1/3/0/5/130543855/7608956.pdf
    • http://247nona.com/uploads/1/3/0/8/130873973/wofegukukovivam.pdf
    • http://mynicesocks.com/uploads/1/3/0/7/130776002/739030.pdf
    • http://lawsmartz.com/uploads/1/3/0/5/130590779/wixepufis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005aeb.bin
4034ecfe7e07219c6dfec3404785693f49df08794fe93203979dc94e394cbeb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AEB 8756 bytes

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