Malicious PDF — malware analysis report

Static analysis result for SHA-256 41a6bf13bda510be…

MALICIOUS

PDF

45.0 KB Created: 2020-04-11 05:53:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5794214a266e6ac0646bbc0ec2f183ef SHA-1: a530453a3c68620c4cc531858df111806194f385 SHA-256: 41a6bf13bda510bee2a7c874b56282320d343c6fb9a280bda1c519e07f05803d
62 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs pointing to external PDF documents hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a coordinated effort to generate traffic or distribute malicious content. The document body itself is largely unreadable, but the presence of the URL 'http://74-123-76-25.mgwnet.com/uploads/1/3/0/8/130814774/130814774.html#question+42+impossible+quiz' suggests a potential lure, possibly related to a quiz or phishing attempt.

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://74-123-76-25.mgwnet.com/uploads/1/3/0/8/130814774/130814774.html#question+42+impossible+quiz
    • http://harrogatemassage.com/uploads/1/3/1/3/131383630/zanusovekid_juxuso_sosixowibajedi.pdf
    • http://henryholdingllc.com/uploads/1/3/0/3/130313553/6420227.pdf
    • http://newdawnbirthdoula.com/uploads/1/3/0/9/130969755/zikobexazoligow-rojuvar-kowofabum.pdf
    • http://diaexecutivecar.com/uploads/1/3/1/4/131407045/5222ee76a3.pdf
    • http://noncognitive.ca/uploads/1/3/0/7/130776490/jamiridisib.pdf
    • http://mishakaura.com/uploads/1/3/0/5/130551127/1532532.pdf
    • http://warrenmotorsports.net/uploads/1/3/1/0/131070761/xodexoxiworolo.pdf
    • http://naptimegraphics.com/uploads/1/3/0/7/130776823/ralanuxuxijovus.pdf
    • http://rotinofeet.com/uploads/1/3/0/5/130589004/pazilovumaw-difezoriro.pdf
    • http://cmoorebrowsbeauty.com/uploads/1/3/0/5/130544746/3618439.pdf
    • http://smithfamilyautosales.com/uploads/1/3/0/6/130604519/20b872da5b5.pdf
    • http://wendysbathcollection.com/uploads/1/3/1/4/131406434/80c83ad489d92.pdf
    • http://lhcbrands.com/uploads/1/3/0/2/130287866/bijisuvaf.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_off000087a4.bin
86668efe24d206617fbf8c6ae71b717b06c343653679860ac18a6267466f0ae1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87A4 8624 bytes

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