Malicious PDF — malware analysis report

Static analysis result for SHA-256 465c25de30ec60df…

MALICIOUS

PDF

48.5 KB Created: 2020-05-22 05:01:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf8e0ede3e87e658cfc9ba566de073aa SHA-1: a7d1c57e1a072403e89058730d3ba51d12c1fd32 SHA-256: 465c25de30ec60df11a85ef3e3b89782653287a39e9b81d2f68b02ca3281653e
92 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier as malicious. It contains a large number of external links to other PDF files hosted on various domains, indicating a potential SEO poisoning or link farm attack. The document body contains obfuscated text and references to 'N64 dd emulator' and 'wkhtmltopdf', suggesting a lure or a method to disguise the malicious intent. The primary attack pattern involves redirecting users to a network of external URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://nbzdht.bdgct.com/uploads/1/3/1/4/131438092/131438092.html#n64+dd+emulator
    • http://karleykolors.org/uploads/1/3/0/6/130621552/d96925.pdf
    • http://calm2you.com/uploads/1/3/1/3/131383592/6886578.pdf
    • http://avaceleste.net/uploads/1/3/0/9/130969242/9b23931aaa8d.pdf
    • http://allthingsyoga.net/uploads/1/3/1/4/131452923/julizezudeto_kowerobavogovu_winibaroveve.pdf
    • http://emmarainc.com/uploads/1/3/0/8/130814328/b7cd8.pdf
    • http://haconcrete.com/uploads/1/3/1/4/131455734/7ace7718bdbf4f.pdf
    • http://gaithersburgcarpetcleaning.biz/uploads/1/3/1/4/131437693/9418673.pdf
    • http://tusclasesdepoker.com/uploads/1/3/0/2/130291572/funogori-febidolexegojet.pdf
    • http://idoweddingplanning.ca/uploads/1/3/0/7/130775108/8373558.pdf
    • http://dubldcontracting.com/uploads/1/3/0/6/130640123/736d687.pdf
    • http://fivehonet.com/uploads/1/3/0/4/130436389/4928531.pdf
    • http://madisongahaferart.org/uploads/1/3/0/6/130605388/020ca616a557a.pdf
    • http://noraelliottcostner.com/uploads/1/3/0/4/130488067/rujejurodorofad_baxetilotokin.pdf
    • http://birthreadyspokane.com/uploads/1/3/1/4/131406291/7469fb5f8e.pdf
    • http://padovecote.com/uploads/1/3/0/5/130589295/limafezosizetes.pdf
    • http://pipes-underground.com/uploads/1/3/0/2/130270918/f16b3d3b0.pdf
    • http://henchmenglass.ca/uploads/1/3/0/6/130604744/3fcf97.pdf
    • http://ymphotog.com/uploads/1/3/1/3/131380915/xawuza-sekuje-mesezen.pdf
    • http://psychological.coach/uploads/1/3/0/3/130313155/rofejilanuzupuj.pdf
    • http://suzettebanzo.com/uploads/1/3/1/8/131856166/levolil.pdf
    • http://funlearninguniverse.com/uploads/1/3/0/3/130379147/bed166c.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_off000090f7.bin
e9ef31eb444e4ad45c17547f56cb264b32db61bda68ef7af53af80749ab7de37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90F7 11148 bytes

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