PDF malware analysis — malicious · ff39ec27e19f6ca5

MALICIOUS

PDF

56.5 KB Created: 2021-01-03 12:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 1f892bf5e4ddcb6486d823ed7d9b77f0 SHA-1: fb5233c4979565e8ebe58d2c9d21cdef1211b9e6 SHA-256: ff39ec27e19f6ca57ad4746fa2c2a74feb23e5f3dcd6b59526654570b9ccda78

192 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to known malicious infrastructure, specifically 'https://gettraff.ru/wb?keyword=my%20tumblr%20page%20link'. Heuristics indicate this is a redirector link used for phishing or malware distribution. The ML classifier and ClamAV detection further support the malicious nature of the file.

Machine Learning

Nyx PDF Classifier malicious score 0.7693

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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 https://gettraff.ru/wb?keyword=my%20tumblr%20page%20link In PDF document text
- https://safikevobajegev.weebly.com/uploads/1/3/4/3/134352312/819571fce059246.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501509/normal_5fb475a9ad14d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4456122/normal_5fe1b52695eae.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379485/normal_5f8dcc68c37a4.pdfIn PDF document text
- https://pesadosopovito.weebly.com/uploads/1/3/4/2/134235692/kuderapowekis.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473654/normal_5fb4e15564633.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/133194f6-1c3a-4d8d-b89c-95522fae1900/lubinopumaniradelef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9d7ff2b3-af63-4100-9f04-7015d88f8868/83042930969.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/932462aa-525c-4ff4-889d-30c653699c2d/47108153936.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c93c50ea-6b8d-4375-b9de-5b41d61d2379/fusimubavuwaba.pdfIn PDF document text
- https://s3.amazonaws.com/verirejon/present_perfect_worksheet.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d26c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD26C	5044 bytes
SHA-256: `a855e7c9549aaa0daba86c1b7829602760effb645ba97a66e53aff91fb5532ed`

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