Malicious PDF — malware analysis report

Static analysis result for SHA-256 232bb80f7d0b4af4…

MALICIOUS

PDF

43.7 KB Created: 2020-06-15 19:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bda966922161ef34267f9bffbffa743f SHA-1: 7813fcba26da12a99ac146b39ba5a5c7e79ed7b5 SHA-256: 232bb80f7d0b4af4a0e62f98288e1c4d9580eef1c636ba49674a473f3c4546e4
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, suggests a lure related to a 'Russell stover chocolate guide'. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a mass of external PDF links, confirming the malicious intent of directing users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://cpanel.kalenit.com/uploads/1/3/0/6/130639458/130639458.html#russell+stover+chocolate+guide
    • http://onebowdesigns.com/uploads/1/3/0/5/130588304/c80b70.pdf
    • http://lauhap.net/uploads/1/3/0/6/130620616/kanuvineratanodojizo.pdf
    • http://mail.gammaxiques.org/uploads/1/3/0/6/130620320/d58b0c501d.pdf
    • http://mta.safehavenworship.com/uploads/1/3/0/7/130740492/kuxavanu-kijunezavo-zifab.pdf
    • http://proposalsme.com/uploads/1/3/0/6/130639801/022c36fcb8dd.pdf
    • http://mta-sts.moxyinithaca.com/uploads/1/3/1/4/131438069/dikezegakeb_guwibewakori_videgedu.pdf
    • http://i-405corporatecenter.com/uploads/1/3/0/7/130775567/regowod.pdf
    • http://corcepts.com/uploads/1/3/1/4/131454093/naxidigisumuk-mimoramofov-notixidebem.pdf
    • http://laurenkucic.com/uploads/1/3/1/4/131483275/tuxonutuxek_kelupagu_gedax.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_off00007b80.bin
77e95ef7d3fe1e713fb365f11bc7bd9fce74fef55c2f1cb90e7bdebd5d5fc600		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B80 11244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.