Malicious PDF — malware analysis report

Static analysis result for SHA-256 86193bafff08a813…

MALICIOUS

PDF

42.4 KB Created: 2020-04-02 08:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c0b3421e0c68871449d7d0dc9ddbe260 SHA-1: f05863b0749b1eac0cf0ae92bb5bfaee0d8928a7 SHA-256: 86193bafff08a8137af7271a6cb38fc1082d889df4cc5bffd135c504fddca414
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links to various domains, identified as a link farm. The primary URL points to a document titled 'Tiempos quirurgicos de la mesa de riñon pdf', suggesting a lure related to medical procedures. The ML classifier strongly flagged this PDF as malicious. The presence of numerous SEO-gateway links indicates a campaign to manipulate search engine results or distribute malicious content through a wide network of seemingly unrelated sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mysoundcollective.com/uploads/1/3/0/3/130379371/130379371.html#tiempos+quirurgicos+de+la+mesa+de+ri%C3%B1on+pdf
    • http://doranyprzyloz.com/uploads/1/3/0/4/130476878/00b0d0b445a62.pdf
    • http://compliancelynx.com/uploads/1/3/0/2/130288962/pokegunu.pdf
    • http://pedaleaquenoespoco.com/uploads/1/3/1/4/131437462/e24bd26b8735.pdf
    • http://mountainpinestreetreachprogram.com/uploads/1/3/1/3/131380183/jagularetomol-dajop-zefarajitawow-nimupuzux.pdf
    • http://joinplatinumteam.com/uploads/1/3/1/4/131438282/e666849ea25ea8c.pdf
    • http://snookathletics.com/uploads/1/3/0/5/130588222/2448036.pdf
    • http://janettedmiller.com/uploads/1/3/0/6/130620362/3081675.pdf
    • http://chrisarkwright.com/uploads/1/3/0/7/130739833/5180549.pdf
    • http://bluestoneag.org/uploads/1/3/0/4/130489247/pelulemiruri-visisakamafowu-ridikan-jonowiwaj.pdf
    • http://valleyevictions.com/uploads/1/3/0/7/130739150/7801304.pdf
    • http://idealdance.net/uploads/1/3/0/8/130873951/muvugebevam.pdf
    • http://truecorners.com/uploads/1/3/1/3/131381369/fiwar-zejagami.pdf
    • http://alianzaporlademocracia.org/uploads/1/3/1/3/131380225/ee3bcdc47.pdf
    • http://tntstasteepastrees.com/uploads/1/3/0/2/130287737/cf5dd92bf2ddef.pdf
    • http://gaiamjewellery.com/uploads/1/3/0/7/130738997/fbcf4dd5fe.pdf
    • http://marinecoutelas.com/uploads/1/3/0/6/130603764/debevukexopip-komibokedixuse-gazesatav-wemetutajedaw.pdf
    • http://janbidwellconsulting.com/uploads/1/3/0/5/130546803/d04f09e.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_off00007b8f.bin
25a0872054cca93b3fd9b8bf72cbe079b63b2e0a201ed5431bd67209cb68ad19
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8F 8400 bytes