Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c878ed407a1533…

MALICIOUS

PDF

42.8 KB Created: 2020-03-25 12:12:34 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 805ae84eca1280ff4397cabec92c65a1 SHA-1: a1baad0b923e83fceb2c1dc464087eef7f9cdfcd SHA-256: a9c878ed407a153369f644c3a9941cb8937fa320e8d44775b28f9b0f3fe02039
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains text related to synonyms and antonyms, likely a lure to disguise the malicious intent. The primary attack pattern involves directing users to numerous external URLs, which are likely part of a link farm or intended to host further malicious content.

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://feedthejoy.com/uploads/1/3/0/2/130272072/130272072.html#sinonimos+y+antonimos+definicion+y+ejemplos+para+ni%C3%B1os
    • http://tengoundolorfisicoenmicabeza.com/uploads/1/3/0/9/130969439/kilazo_kedosalolepejul.pdf
    • http://michaelmkrueger.net/uploads/1/3/0/5/130588622/wirij.pdf
    • http://mail.refreshednutrition.com/uploads/1/3/0/4/130435532/4633601.pdf
    • http://www.seislagos.net/uploads/1/3/0/5/130588497/kogofuwu.pdf
    • http://3minspection.net/uploads/1/3/0/7/130739094/90169f2ae89b52b.pdf
    • http://adrenalinedanceamplified.com/uploads/1/3/0/7/130738633/6372977.pdf
    • http://staging.sailwhyc.com/uploads/1/3/0/2/130270957/soxuzokiladenu.pdf
    • http://itsjusmikeymusic.com/uploads/1/3/0/2/130291779/0d45ddbfed6560.pdf
    • http://qualityaquaticlandscaping.com/uploads/1/3/0/3/130379274/3550578.pdf
    • http://www.ianmusgrave.co.uk/uploads/1/3/0/6/130639538/7385008.pdf
    • http://acumenwm.com/uploads/1/3/0/8/130814118/285834f9c58aa.pdf
    • http://voteterribest.com/uploads/1/3/0/7/130775570/642b80a1.pdf
    • http://defenders-apparel.com/uploads/1/3/0/7/130739158/9569442.pdf
    • http://lgbtq-kc.org/uploads/1/3/0/6/130621060/welivexun.pdf
    • http://gentlemansboutiqueny.com/uploads/1/3/0/8/130814682/9818709.pdf
    • http://christmanscabincreationsllc.com/uploads/1/3/0/4/130476104/bukuv-vuwopi-genelogirezod-kumawere.pdf
    • http://imactsym.com/uploads/1/3/0/3/130379145/6885825.pdf
    • http://mail.testlers.com/uploads/1/3/0/8/130874046/8839948.pdf
    • http://amberclements.com/uploads/1/3/0/5/130551002/9105844.pdf
    • http://northcountymomsforspecialkids.com/uploads/1/3/0/2/130288510/028ff0948a.pdf
    • http://gellerglass.com/uploads/1/3/0/8/130873951/3a57b.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_off00007b6c.bin
bd86fa0e6cfdead7f820a83dfe94291960afad945134e2c1902ca893782215f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6C 8556 bytes

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