Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9472be2a29aac2d…

MALICIOUS

PDF

47.6 KB Created: 2020-05-22 01:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cbcd3001cb33d41d64dd431b3bdf0cb SHA-1: 862ff12610bea7a90eab2b16798c41f4ac2685d3 SHA-256: e9472be2a29aac2d8060646b2748594a678d8732bdddd700112f9ccf281a9be1
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF documents hosted across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this pattern, suggesting the document's primary purpose is to redirect users to these external resources. No scripts were extracted from this sample.

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://ifyr6.bpmtc.com/uploads/1/3/0/2/130270953/130270953.html#honda+company+profile+pdf
    • http://rikroshi.com/uploads/1/3/0/6/130639055/lubedojenanini_tamugaro_wigumonewusel.pdf
    • http://rosealert.com/uploads/1/3/0/7/130740489/soxuma.pdf
    • http://radiancebeautybytara.com/uploads/1/3/0/6/130639153/a86b643d108.pdf
    • http://superiorautomotiveoflincoln.com/uploads/1/3/1/1/131163533/sojazaxisim.pdf
    • http://davidnoyer.fr/uploads/1/3/0/7/130775131/e2994e6.pdf
    • http://hermenegildoaguiar.com/uploads/1/3/1/3/131383854/korusidigawu.pdf
    • http://fileandfile.org/uploads/1/3/0/5/130588554/1d37bad.pdf
    • http://reeseforsheriff.com/uploads/1/3/1/4/131437363/69959e2c74b.pdf
    • http://stillloved.org/uploads/1/3/0/8/130813956/zogeted-xaseval.pdf
    • http://candjelitecleaning.com/uploads/1/3/1/8/131872048/guronurap.pdf
    • http://agriculture-machine-for-work.com/uploads/1/3/1/1/131163691/sujunopejajufe-renuxivabug-navemogap-xogedapefalitam.pdf
    • http://amazemorize.com/uploads/1/3/0/6/130621656/wasizulivamenupatifu.pdf
    • http://thenextbreastthing.net/uploads/1/3/0/4/130489128/897940.pdf
    • http://redbarneggs.com/uploads/1/3/1/8/131871424/4896802.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_off00008f90.bin
c277073bc493cd9af18a297ffe1aa5b99cbbb0698b16418acfc44ef52e8682f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F90 10552 bytes

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