Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c514cf4c74668e…

MALICIOUS

PDF

39.5 KB Created: 2020-04-04 15:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 79d6bf11605df94b86437159283998e0 SHA-1: 6bc454a298c0de73f530889130dbc56f84065c7f SHA-256: a9c514cf4c74668e68a67087ba1a806af05499823914bb75c6b47f5ee01db20c
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external PDF files hosted on various domains. This technique is often used for SEO manipulation or to distribute malware. The document body itself contains garbled text and a reference to 'Resumen de los acidos carboxilicos', suggesting a potential lure or obfuscation. No scripts were extracted, limiting further analysis of direct payload delivery.

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://gotvapestache.com/uploads/1/3/0/6/130639580/130639580.html#resumen+de+los+acidos+carboxilicos
    • http://edwardrosas.com/uploads/1/3/1/3/131381006/rorifapa.pdf
    • http://makeasplash.ca/uploads/1/3/0/5/130588772/kilosuxaraxibosof.pdf
    • http://bellinghambc.org/uploads/1/3/0/2/130289773/446113438.pdf
    • http://tacwest.ca/uploads/1/3/1/3/131383583/luxasasorax-wedulakedenilo.pdf
    • http://timelesstreasures-us.com/uploads/1/3/0/8/130814492/sasetev.pdf
    • http://elfcoaching.com/uploads/1/3/0/6/130603721/rufezarumekoxu.pdf
    • http://starvegutdistillery.com/uploads/1/3/0/6/130620818/rujotomilemofu.pdf
    • http://londonstringing.com/uploads/1/3/0/5/130540926/xiwipi_vuwerub_fidifamibufe_wifofur.pdf
    • http://floridaassociatesrealty.com/uploads/1/3/0/9/130969316/b90b0b75829d74.pdf
    • http://bowensnotary.com/uploads/1/3/0/3/130313686/domasujogoxab.pdf
    • http://travelsmartwith.me/uploads/1/3/1/3/131398332/717608.pdf
    • http://molivery.ee/uploads/1/3/0/2/130289418/lidifeta.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_off00006f6e.bin
09fbfe6aca112859ebdf91aa1baa9efe45986eb146e6a050b89e9289314cfe75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6E 9312 bytes

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