Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba75a7893ec9f49f…

MALICIOUS

PDF

54.6 KB Created: 2020-04-04 14:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 79ceee851e8b4e7c507942ec38864cd4 SHA-1: 09ab2b5bc206496937b4babe769e6c72f9cfec58 SHA-256: ba75a7893ec9f49fff27a06d402764302150e18ab0ea8fe9d44c91d49eeb267b
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files hosted on various domains. This technique is often used for SEO spam or to distribute a variety of malicious payloads. The document body contains garbled text and a reference to 'Que es un petequial', which may be a lure. No scripts were extracted from this sample.

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://rachelwinzar.com/uploads/1/3/1/3/131381886/131381886.html#que+es+un+petequial
    • http://womenshoes1.com/uploads/1/3/0/5/130588415/sizovop.pdf
    • http://techtoberfestoc.com/uploads/1/3/0/5/130543740/gijerovili_lolowojorilugar_pesivun.pdf
    • http://malekwilliams.com/uploads/1/3/0/4/130476722/3043308.pdf
    • http://advancedleadershipacademylaunch.com/uploads/1/3/0/8/130813362/nepazinopenu.pdf
    • http://jthomrich.com/uploads/1/3/0/5/130540304/6265158.pdf
    • http://themotivist.com/uploads/1/3/1/4/131407082/pusitador.pdf
    • http://mendomart.com/uploads/1/3/0/5/130588202/f23be2.pdf
    • http://rpdfurn.com/uploads/1/3/0/6/130621036/rubatobujageseru.pdf
    • http://stemstil.nl/uploads/1/3/0/6/130605194/mobex_fuzogobusez.pdf
    • http://msjarrell.com/uploads/1/3/1/0/131070001/xumaba.pdf
    • http://crossinbarre.net/uploads/1/3/0/2/130288006/8016444.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000802b.bin
3f0f90e1847010f8fc2a1a1b2405640ab17eead9f83f6f1073f1bf51eeeea8a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x802B 9148 bytes
font_01_sfnt_off0000a16c.bin
dba7fe2cab955b55dab60ed1d39050b9047bfad2ea74e611c3690603491e23d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA16C 9128 bytes
font_02_sfnt_off0000b6bc.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6BC 16036 bytes

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