Malicious PDF — malware analysis report

Static analysis result for SHA-256 a339bd130e202710…

MALICIOUS

PDF

33.8 KB Created: 2020-04-08 09:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4d523744e86919f2e4b9c958b854c53a SHA-1: f658c000b8841cee762eddc530854e6b5c2ad15d SHA-256: a339bd130e2027101d209ed888fa4e8e45eb43009fa0dc20f02268d0e5df34a1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO abuse tactic. The document body, though partially corrupted, contains text related to 'Astrology books sinhala free download', which serves as a lure. The embedded links likely lead to further malicious content or phishing pages.

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://mmhac.com/uploads/1/3/0/5/130588633/130588633.html#astrology+books+sinhala+free+download
    • http://jsrinspired.com/uploads/1/3/0/7/130738503/fibepemozonitobolu.pdf
    • http://geckomusic-tw.net/uploads/1/3/0/3/130379549/vafalobeporeg.pdf
    • http://joshhutson.net/uploads/1/3/0/6/130621208/973388.pdf
    • http://mhsdoernbecher.com/uploads/1/3/0/7/130739120/gizusevevi.pdf
    • http://jacquelineburke.com/uploads/1/3/0/7/130776413/lawatale.pdf
    • http://tdmglobalrisk.com/uploads/1/3/0/5/130540504/jonadu.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_off00005b73.bin
83025784abd3ba90499e97b5fa8a645c293572bfaaed0de58e05bdbd6a9799ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B73 8212 bytes

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