Malicious PDF — malware analysis report

Static analysis result for SHA-256 5298c65cfb106d12…

MALICIOUS

PDF

38.7 KB Created: 2020-06-06 04:53:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b16bdd2d047567c0fb36525ffb92fdaf SHA-1: 7008e10b3456a424425b9023950de4fd79481c95 SHA-256: 5298c65cfb106d12df59174f4d91eadf67e0134d417978bf41d161cf2cf4c3c5
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body contains text related to 'Pathfinder kingmaker sweet teeth' and numerous URLs, suggesting a lure to external content. The primary attack pattern appears to be directing users to a link farm, potentially for SEO manipulation or to host further malicious payloads.

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://qidonline.com/uploads/1/3/1/4/131414743/131414743.html#pathfinder+kingmaker+sweet+teeth
    • http://wc-3.com/uploads/1/3/0/6/130639549/9921815.pdf
    • http://el004.elrepco.com/uploads/1/3/0/6/130605174/jekozefimuja_zepimikupufero.pdf
    • http://rookiebrookie.com/uploads/1/3/1/1/131164568/9200759.pdf
    • http://mx.clevelandhousepainters.com/uploads/1/3/1/4/131409210/boguw-nusugexipewi-butifatowiw.pdf
    • http://theflyinggreenhouse.com/uploads/1/3/0/4/130483794/5233371.pdf
    • http://snkrfrce.com/uploads/1/3/0/5/130588966/raxipajezafejuf-vesare-rodebidimikuw-gamexebedojow.pdf
    • http://onlinedrumclasses.com/uploads/1/3/2/3/132303082/7f5459788bd.pdf
    • http://test.wpal.fr/uploads/1/3/0/2/130272591/1589035.pdf
    • http://dns1.en-linea.com/uploads/1/3/1/6/131606162/89234ae57aaa.pdf
    • http://qidonline.com/uploads/1/3/1/4/131414743/terms.html
    • http://qidonline.com/uploads/1/3/1/4/131414743/dmca.html
    • http://qidonline.com/uploads/1/3/1/4/131414743/policy.html
    • https://lavejolavazo.files.wordpress.com/2020/06/14244369918.pdf
    • https://gofulore.files.wordpress.com/2020/06/xovegexaderegukoweb.pdf
    • https://paxiboboguni.files.wordpress.com/2020/06/neliminojowajalawujo.pdf
    • https://zofivogoraw.files.wordpress.com/2020/06/dadalu.pdf
    • https://kibemiratet.files.wordpress.com/2020/06/nazukabeva.pdf
    • https://nelofejinuri.files.wordpress.com/2020/06/12659609847.pdf
    • https://lejezakitev.files.wordpress.com/2020/06/11483677742.pdf
    • https://xidikef.files.wordpress.com/2020/06/7690409928.pdf
    • https://fikesud.files.wordpress.com/2020/06/gefonuz.pdf
    • https://bapomen475531298.files.wordpress.com/2020/06/xopemidu.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_off0000654b.bin
e3afa8f4f516c3033d273e9c1c4b5faebfd52cd1ac0fea973c0e28d6dc76d027		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654B 12468 bytes

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