Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec448421d123d97…

MALICIOUS

PDF

64.0 KB Created: 2021-02-25 02:20:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7f906d7bfcb8e1e749c354042bfbec22 SHA-1: 844f96e387f36cbde41a9188262b995af3a282bd SHA-256: bec448421d123d97496b1b7c7250781e3d5102b6cef400d8644d110602942fdf
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many pointing to other PDF files hosted on disposable domains, indicative of a link farm or SEO spamming operation. ClamAV and ML classifiers identified this as malicious, likely a phishing or trojan distribution attempt. The presence of embedded URLs suggests an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9639

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/award?keyword=itil+v3+foundation+course+material+pdf PDF link annotation
    • http://arnautmebel.ru/borges_and_i_analysisbi0h9.pdfIn PDF document text
    • https://cdn.sqhk.co/xopigotax/heihhek/night_shift_stargazing_and_astronomy.pdfIn PDF document text
    • https://cdn.sqhk.co/kizofapekeku/o1WWDje/93012547863.pdfIn PDF document text
    • http://jukavoluv.iblogger.org/34527957771.pdfIn PDF document text
    • https://tariroviwobin.weebly.com/uploads/1/3/4/7/134715354/vadumuf.pdfIn PDF document text
    • https://cdn.sqhk.co/dibidoretu/ezjhicG/48934829088.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/fgfhghM/36145453263.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/geHgiW5/53027922739.pdfIn PDF document text
    • https://cdn.sqhk.co/jaziwuke/chi8gcI/best_lightsaber_fighter_in_star_wars.pdfIn PDF document text
    • http://odemebayisitrafik.com/fitekotuwosakegor6bzbk.pdfIn PDF document text
    • http://wejutejejuwow.iblogger.org/samsung_rf323tedbsr_water_filter_location.pdfIn PDF document text
    • http://form-copyrightservices.com/85915431845iimu3.pdfIn PDF document text
    • http://ionatr.space/alita_battle_angel_2019_movies54jm.pdfIn PDF document text
    • https://cdn.sqhk.co/pulafefer/jfPGaJ1/11346266115.pdfIn PDF document text
    • https://cdn.sqhk.co/vipatemeluti/ajihcY2/werutugoporetoxalapi.pdfIn PDF document text
    • http://fumosuwigerama.epizy.com/35442086026.pdfIn PDF document text
    • http://gebibem.epizy.com/60824266994.pdfIn PDF document text
    • http://popeganezawojeg.rf.gd/how_fast_is_a_speed_boat_in_knots.pdfIn PDF document text

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