Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57a0f3bdffac30a…

MALICIOUS

PDF

52.6 KB Created: 2021-01-19 18:07:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7c61062b0c178a0b48f59b20d908f03c SHA-1: 3360c069c7b0e16378c267622674064d39e5de04 SHA-256: d57a0f3bdffac30a632747e153be2bd92d74fe617c11bfe74af3625a308bde18
182 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to disposable hosting services and redirector infrastructure, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links. No scripts were extracted, but the document's structure and embedded URLs are indicative of a link farm designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9544

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffmen.ru/aws?utm_term=molecules+and+compounds+worksheet+pdf In PDF document text
    • https://zuwodavipufowaf.weebly.com/uploads/1/3/1/4/131408056/xevolo.pdfIn PDF document text
    • https://xomadugazulu.weebly.com/uploads/1/3/4/5/134597447/6585275.pdfIn PDF document text
    • https://lubuminovek.weebly.com/uploads/1/3/4/5/134590555/tebezesefuke.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/fefupekudodemaroxaf.pdfIn PDF document text
    • https://cdn.sqhk.co/dezosanag/bgjDLig/wozotopaxoxitesoleze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469136/normal_5fa3d4b06e624.pdfIn PDF document text
    • https://defutijobazaso.weebly.com/uploads/1/3/4/5/134587482/2b5194e.pdfIn PDF document text
    • https://jopojikifereter.weebly.com/uploads/1/3/4/5/134519769/3178188.pdfIn PDF document text
    • https://site-1200539.mozfiles.com/files/1200539/sitat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394071/normal_5feeb05d9667b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pususarejopo.epizy.com/f_t_p_ka_full_form.pdfIn PDF document text
    • http://lezujepadu.rf.gd/green_colour_flowers_free.pdfIn PDF document text
    • http://rubaporejolo.rf.gd/september_2018_calendar_template_excel.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F4 5556 bytes
SHA-256: 682547f956e0068edf158b2786b297e3234d3f86d65a92ee5d7f897960e0ffe2