Malicious PDF — malware analysis report

Static analysis result for SHA-256 73344c425bbc33a6…

MALICIOUS

PDF

47.0 KB Created: 2021-03-29 17:17:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: e7287218916b961e1687493622790c20 SHA-1: 3525697ed1712eb16c137b4719271870da5513b9 SHA-256: 73344c425bbc33a6609fe471dae7e7406bd0a39ecb2c4eb7c7e85b6f595d69b2
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of external links, identified as a link farm. Several heuristics indicate this is a malicious SEO tactic, with ClamAV detecting it as a phishing trojan. The primary purpose appears to be directing users to potentially malicious or deceptive websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7448

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.
  • 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.
  • 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://kuzutuzo.ru/award?keyword=financial+accounting+ratios+pdf PDF link annotation
    • https://cdn.sqhk.co/vovigewuva/UlKSjjQ/maintenance_job_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusemob/qCyRcJP/fdic_call_report_glossary.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/pjbD3jj/mumudejosuk.pdfIn PDF document text
    • https://pigokujedaxe.weebly.com/uploads/1/3/0/7/130740563/rirasuluva_faziripemag_mowivemapidutok_digulegerupef.pdfIn PDF document text
    • http://juzezudusota.mypressonline.com/easiest_way_to_learn_autocad_electrical.pdfIn PDF document text
    • https://cdn.sqhk.co/kexofodatop/uO2igLs/willie_nelson_16_biggest_hits_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/hfFibja/66069434796.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxujagemo/jt7FijV/windows_media_player_free_softonic.pdfIn PDF document text
    • https://rifodajawu.weebly.com/uploads/1/3/0/7/130739776/rufosid-bivigoguka.pdfIn PDF document text
    • https://zowukudikumo.weebly.com/uploads/1/3/1/3/131382828/5145008.pdfIn PDF document text
    • https://jetujipizi.weebly.com/uploads/1/3/0/8/130813705/6944817.pdfIn PDF document text
    • https://cdn.sqhk.co/kufagilan/Vhejdwv/15150957526.pdfIn PDF document text
    • https://cdn.sqhk.co/xubewarow/g54PUHP/69861538182.pdfIn PDF document text
    • http://lixanixuzuki.rf.gd/gudorutugovobasuxi.pdfIn PDF document text
    • http://zevideto.rf.gd/makukulaxekaratefivufawuz.pdfIn PDF document text
    • http://zirutabu.myartsonline.com/22548200782.pdfIn PDF document text
    • http://kusegipe.epizy.com/24801839083.pdfIn PDF document text
    • http://xeregolipota.epizy.com/2578536139.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/bixubanedafanulikeka.pdfIn PDF document text
    • http://mogerokefo.epizy.com/ligavuvezufawiwufugu.pdfIn PDF document text

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