Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1babc70d1228af9…

MALICIOUS

PDF

44.6 KB Created: 2020-04-21 20:13:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6b72907d02b199b1366099efc3ba59b8 SHA-1: b8588241052f487a2696d2edf21157eaa03a326e SHA-256: f1babc70d1228af9980fcbde02ba09a32d3990fe7c1f0423d2ab8f421b666e65
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body, though partially corrupted, contains text related to a 'New civic 2008 manual ficha tecnica', which may serve as a lure. The primary attack pattern involves directing users to these external URLs, which could host further malicious content or phishing pages.

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://eastbrooklynhousing.com/uploads/1/3/1/6/131637313/131637313.html#new+civic+2008+manual+ficha+tecnica
    • http://alainemmanuel.com/uploads/1/3/0/6/130605168/6010260.pdf
    • http://southeasternchemicalresources.com/uploads/1/3/0/8/130813606/7538813.pdf
    • http://yellowpencilrental.com/uploads/1/3/0/4/130478551/9a3674f9.pdf
    • http://savage-adventures-with-olivia.com/uploads/1/3/0/4/130435955/gizujobatuwo.pdf
    • http://vikaresa9.com/uploads/1/3/1/4/131437046/jagem.pdf
    • http://midlifesolutions.net/uploads/1/3/0/9/130969115/sosemede_xanewopakavo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e19.bin
59d8068ab9b73d68a48b8266da24cfc617cd78267ce563356bb77246eaebe457		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E19 10068 bytes
font_01_sfnt_off00008f5d.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5D 16204 bytes

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