Malicious PDF — malware analysis report

Static analysis result for SHA-256 933c6878b91d6623…

MALICIOUS

PDF

37.1 KB Created: 2020-03-29 13:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 680b5a9e465ed7e433ee060c8e1c30f4 SHA-1: 27bb7a33f60173cc7cbace828cc307685007fefb SHA-256: 933c6878b91d6623bc94ecf5593bc1b4f4cf0dc411e11a0b7e12c430bbf00d8f
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 contains the title 'Ciclo otto 4 tiempos pdf' and mentions wkhtmltopdf, suggesting it might be part of a link farm or SEO manipulation scheme. The primary goal appears to be directing users to a multitude of external URLs, potentially for malicious purposes.

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://cyclebavaria.com/uploads/1/3/0/5/130590177/130590177.html#ciclo+otto+4+tiempos+pdf
    • http://weblearninggroup.com/uploads/1/3/0/4/130476586/faladafisataxej-diwibabadate-bejedonili.pdf
    • http://cincinnatihealthcarestaffing.com/uploads/1/3/0/2/130272340/1273465.pdf
    • http://dwarvenworkshop.com/uploads/1/3/0/5/130551832/121ae89c9815.pdf
    • http://bjpropertyventures.com/uploads/1/3/0/5/130542859/ninamogoxuken_lumowe_voturolame.pdf
    • http://writealignment.com/uploads/1/3/0/6/130620947/0e6e0ab8150c03.pdf
    • http://earthangelherbals.com/uploads/1/3/0/6/130639282/peromodubuta.pdf
    • http://ngbeautymakeupstore.com/uploads/1/3/1/3/131378953/364d70.pdf
    • http://orlandoflighttraining.com/uploads/1/3/0/2/130288924/lidob_genudud_sigidom_xavixabu.pdf
    • http://naimfokc.org/uploads/1/3/0/5/130589401/famid-wumufeja-jowenuv.pdf
    • http://revo-eng.com/uploads/1/3/0/4/130483566/3814177.pdf
    • http://egweimaikale.com/uploads/1/3/0/7/130738568/cad59b1.pdf
    • http://fixconcepts.net/uploads/1/3/0/5/130544703/dc6717beac.pdf
    • http://collegeadmissioncat.com/uploads/1/3/0/4/130489417/nofusefefeganexoju.pdf
    • http://misscarolsartintheattic.com/uploads/1/3/0/6/130640190/20d24ff0641aab.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_off000068ba.bin
1f836a3d97f64ab4c4b04b245d0cd02a918409a9f403f9ee77628bc7c98793b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BA 8120 bytes

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