Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca36669a27712ae3…

MALICIOUS

PDF

29.6 KB Created: 2020-04-05 12:53:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3b25e72476b6c30401587822a3d40182 SHA-1: 2483dfd71badc0d18bdcc6889a8493cc2a3b17f1 SHA-256: ca36669a27712ae3b63131b5ae4cd0608f9ed503ee42931a61d56093ef1dac60
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, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The document body mentions 'Hp wireless keyboard and mouse instructions', suggesting a lure to entice users to click on the embedded links. 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://sneakapeak.org/uploads/1/3/0/6/130604554/130604554.html#hp+wireless+keyboard+and+mouse+instructions
    • http://kultcherinvazion.com/uploads/1/3/0/8/130814329/500157eacb848.pdf
    • http://thecraftandhook.com/uploads/1/3/0/3/130323260/1b2f9f.pdf
    • http://deanboschcontracting.com/uploads/1/3/0/2/130289365/wuwetoteja.pdf
    • http://desire-more.com/uploads/1/3/1/1/131163838/bb2a2a.pdf
    • http://jadeowlqigong.com/uploads/1/3/1/3/131398360/94984946643903d.pdf
    • http://piper-boy.com/uploads/1/3/1/4/131406433/205f2cd36fed0b1.pdf
    • http://synergyesp.com/uploads/1/3/1/0/131070520/tusadix.pdf
    • http://monsterloudproductions.com/uploads/1/3/0/2/130270897/roduzuxujololu-jurudumunose-guvuk.pdf
    • http://easytrack.nz/uploads/1/3/0/7/130739237/337697.pdf
    • http://nautilussportfishing.com/uploads/1/3/0/3/130379475/26a67948b1c.pdf
    • http://circlecrealty.org/uploads/1/3/0/2/130272396/wasupajej.pdf
    • http://kytomax.com/uploads/1/3/0/3/130323892/1677394.pdf
    • http://myremtec.com/uploads/1/3/0/6/130604048/wafesekufif_lowefenupozed_sefaba_vokuxoxemonoju.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_off00004f42.bin
92b0b05bc673917628c2ab16676c20f67d526b2432e970158d868429bce7c70d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F42 6556 bytes

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