Malicious PDF — malware analysis report

Static analysis result for SHA-256 13623d325212d893…

MALICIOUS

PDF

111.9 KB Created: 2021-03-14 01:25:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 92f9ce6610f350b2f8d885d22bda73d7 SHA-1: 7c7c9ec48a9d12983560e16766551066e3361c90 SHA-256: 13623d325212d89316a7beb487c142cac65020e49b9dba8967d6891216437ef4
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable or unknown hosting, suggesting a link farm or redirection mechanism to deliver malicious content. The PDF structure and embedded links are consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9491

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
  • 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://golowaki.ru/award?keyword=aghorastra+stotram+pdf PDF link annotation
    • http://iminn.ru/5888186371od8x6.pdfIn PDF document text
    • http://speak4pro.com/bizudinakuwufx4a6.pdfIn PDF document text
    • http://podarokinsta.site/64379949646ipt4m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469827/normal_5ff88c6a6413e.pdfIn PDF document text
    • http://xomatisuxutu.iblogger.org/39793762491.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501367/normal_601f90d1c3905.pdfIn PDF document text
    • http://g2am2e.xyz/some_words_to_describe_sunrise48z63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450517/normal_5fcbdffd8c03a.pdfIn PDF document text
    • http://kimagibasip.22web.org/26586096662.pdfIn PDF document text
    • http://raladotid.22web.org/5340839780.pdfIn PDF document text
    • http://xogovegakim.22web.org/gufumuroga.pdfIn PDF document text
    • http://erogan-columbia.site/how_to_adjust_pfister_shower_temperature8f5wm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483082/normal_602affdde6574.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/71fb9c32-94aa-4a32-967d-6b97ad99c0cb/64280897951.pdfIn PDF document text
    • http://lidixikeb.epizy.com/xitapelunexi.pdfIn PDF document text
    • http://refowinevog.rf.gd/83201321247.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de50c2d0-0d26-49e6-8455-a0b15e10c205/does_all_almond_milk_contain_carrageenan.pdfIn PDF document text
    • http://lonuduvikis.epizy.com/24058571880.pdfIn PDF document text
    • http://rukinemofe.rf.gd/gta_4_binkw32._dll.pdfIn PDF document text
    • http://genenapukiral.epizy.com/warijijiwufixigisafu.pdfIn PDF document text
    • http://kusogit.rf.gd/xegiwititejukudotexogorud.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ab2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AB2C 5412 bytes
SHA-256: 9b7400ed8a81fc882a6e2d65b4e3bc8d1a53f5506fd65024026e3a8851387b3e

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