Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ee17cf11a6ec72…

MALICIOUS

PDF

58.6 KB Created: 2021-01-11 23:50:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5a41e06f1ff707812b0bdd2f4ce80316 SHA-1: e0c2faf671d9ebeb39fa4bd37ab09546615d9de0 SHA-256: 05ee17cf11a6ec72a67aa708412fad616769897fc1317abb51a6eb9db4a8d42e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which point to SEO-optimized PDF files, suggesting a link farm or redirector strategy. The heuristic PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK indicate a free-download phishing lure. The embedded URL https://traffnew.ru/aws?utm_term=english+speaking+book+pdf+in+bangla is likely the initial landing page for this phishing attempt. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9918

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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 https://traffnew.ru/aws?utm_term=english+speaking+book+pdf+in+bangla PDF link annotation
    • https://cdn.sqhk.co/vurifozi/hh39ghh/poopsie_pet_food_commercial.pdfIn PDF document text
    • https://cdn.sqhk.co/pozuwifofub/18vji4y/driving_without_probation_plate.pdfIn PDF document text
    • https://cdn.sqhk.co/xamapetarel/iahgwie/bovetejivugamolovuv.pdfIn PDF document text
    • https://rigukolanerimi.weebly.com/uploads/1/3/4/5/134519373/3140040.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/gjZLjgD/10759787595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418383/normal_5fdbb6c63d56f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370294/normal_5f8c84daedffa.pdfIn PDF document text
    • https://cdn.sqhk.co/sepovili/his9Tgc/barbie_dreamhouse_adventures_go_team_roberts_season.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492278/normal_5fb7a0896d0b1.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/m6_bolt_dimensions_in_inches.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/colchester_6th_form_open_evening_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/dawurekumifefonewezo.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/halifax_police_criminal_record_check_form.pdfIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD437 6384 bytes
SHA-256: acedc839b4d9e0716bdd525cb02e6b9c5dd6d9e8c8e580849d6460eb072ede0d