Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5463f8c04e4f566…

MALICIOUS

PDF

44.5 KB Created: 2020-06-07 05:40:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bad8c34b115882f798a252a22f0e7de9 SHA-1: 1ab6821674cb5dce4a85ddfa7cca32b321abefe9 SHA-256: d5463f8c04e4f56628048aeb24854fdb4314b4e294c5f731f226ced9a8d15ce1
92 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO poisoning and phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, with 'taxfirmsolutions.com' being a dominant host. The document body, though partially corrupted, contains text suggesting a 'Cadbury marketing strategy pdf' lure, which is likely a pretext to drive users to malicious sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://myequineeducation.com/uploads/1/3/0/3/130313054/130313054.html#cadbury+marketing+strategy+pdf
    • http://taxfirmsolutions.com/uploads/1/3/0/2/130289096/77d03ae69f88.pdf
    • http://hostmaster.fiddlestickcrafts.co.uk/uploads/1/3/0/3/130313294/dezip_buginak_kilesatexuze_timumi.pdf
    • http://environmoment.com/uploads/1/3/1/4/131438418/1bbb6.pdf
    • http://lakelifefashions.com/uploads/1/3/0/2/130289186/5437027.pdf
    • http://southcoaststrong.com/uploads/1/3/0/4/130494059/6230029.pdf
    • http://taxfirmsolutions.com/uploads/1/3/0/2/1302
    • https://disenajegen.files.wordpress.com/2020/06/dojazifusa.pdf
    • https://borafitafule.files.wordpress.com/2020/06/74941492169.pdf
    • https://darawoteduto.files.wordpress.com/2020/06/siwurowemipulosugerumo.pdf
    • https://wurepos.files.wordpress.com/2020/06/somevigasez.pdf
    • https://rigubagos619757990.files.wordpress.com/2020/06/vorumegerasizerozegofugir.pdf
    • https://bemurizoz.files.wordpress.com/2020/06/69554578808.pdf
    • https://tazuxejewifi.files.wordpress.com/2020/06/16239886346.pdf
    • https://tipivuli418793521.files.wordpress.com/2020/06/1967908456.pdf
    • https://lapemomubaf.files.wordpress.com/2020/06/badolijodokofagabat.pdf
    • https://pobukurimu.files.wordpress.com/2020/06/26625256179.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_off0000812b.bin
b56c89ecbbfe1453a970c3e91f3e4aa2fa3883d78764c3de1c33a2410c15b521		 pdf-font-stream PDF embedded font (sfnt) at offset 0x812B 10836 bytes

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