Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e3c6f0d7a80bf9…

MALICIOUS

PDF

66.8 KB Created: 2021-02-28 06:30:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 487ab3137fad81994158ff401968e405 SHA-1: 492c575e6728b2a2a9d8b0a56e1fb61bbd6ccc3b SHA-256: 65e3c6f0d7a80bf955c0cba9cdcd3be6aef094439f5ba76382aa49d0fb06185b
184 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spamming operation. One of the primary external URIs, 'https://pelibifir.ru/award?keyword=is+saying+fine+rude', is likely part of a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure itself is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8307

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://pelibifir.ru/award?keyword=is+saying+fine+rude PDF link annotation
    • https://kuwomodelinero.weebly.com/uploads/1/3/0/7/130776449/jivabeko.pdfIn PDF document text
    • https://sepikiduluwad.weebly.com/uploads/1/3/4/4/134487701/vetinepe_fogodalolusutoj_fawiked_begalowevura.pdfIn PDF document text
    • https://pefolasonej.weebly.com/uploads/1/3/4/9/134901659/ef8ab1741c8.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/96326739140.pdfIn PDF document text
    • https://rowigimafusapop.weebly.com/uploads/1/3/5/9/135982222/8012979.pdfIn PDF document text
    • https://bexusisase.weebly.com/uploads/1/3/4/5/134596812/nikutigejabuxa.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/lujuwoxefupar.pdfIn PDF document text
    • https://liruviwogaralo.weebly.com/uploads/1/3/0/7/130776788/fa6218b6118e.pdfIn PDF document text
    • https://wawurekufa.weebly.com/uploads/1/3/4/3/134322490/1715957.pdfIn PDF document text
    • http://euroshopmn.space/39120296073cbutk.pdfIn PDF document text
    • http://infonewstravel.com/82418462843xf9da.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/kegovev/exponents_and_powers_of_10_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/lemezamasaranetibof.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/ansible_tower_for_ubuntu.pdfIn PDF document text
    • http://vixejubofase.epizy.com/chauvet_intimidator_spot_led_350_for_sale.pdfIn PDF document text
    • http://pasazaxara.rf.gd/795774450.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_off0000e3a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A0 5080 bytes
SHA-256: 6cf38c0359e4c683cc3c05015f8fae446827c2e7f3ab13cd2ecf4d5df104872f

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