PDF malware analysis — malicious · 0e90c4f020aee561

MALICIOUS

PDF

49.6 KB Created: 2020-11-25 17:22:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: d697bde269c68d86ddb73b1ab22fdd91 SHA-1: bb60aa18bcde44b3509443bc9a8b8773f3f8dd36 SHA-256: 0e90c4f020aee561f92f239270a7ba6d63a5d5ca75912372e76f7dda96e1b396

212 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. One prominent link directs to 'traffking.ru', identified as a malicious redirector. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or redirection campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.8283

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.
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.
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://traffking.ru/strik?utm_term=mermaid+bathing+suit+with+tail In PDF document text
- https://cdn-cms.f-static.net/uploads/4389354/normal_5f8fc1a6f0bff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372087/normal_5fb5a1d8dbae0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455914/normal_5fa22eb2da566.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413458/normal_5fb59d7705370.pdfIn PDF document text
- https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/801ac33.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471688/normal_5faba1b4225e3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382638/normal_5fae00351ab01.pdfIn PDF document text
- https://tupodawemizaz.weebly.com/uploads/1/3/4/5/134594588/wisupukuv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452400/normal_5fbac4266d26c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379473/normal_5fa9e95c34b80.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/xapidajovaji/best_torrent_finder_software.pdfIn PDF document text
- https://s3.amazonaws.com/zesixefe/fekopupik.pdfIn PDF document text
- https://s3.amazonaws.com/fezenur/jusiturinifabonuminudir.pdfIn PDF document text
- https://s3.amazonaws.com/wixanarer/calendrier_avril_2019__imprimer.pdfIn PDF document text
- https://s3.amazonaws.com/lotibabakuj/73031958782.pdfIn PDF document text
- https://s3.amazonaws.com/zukukelejurotef/north_carolina_math_3_final_exam.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_off0000b220.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB220	5248 bytes
SHA-256: `4a12b3b69aeade5eefd46c3edecdd5f65cb6caa49f867cf7da992708b77c75df`

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