Malicious PDF — malware analysis report

Static analysis result for SHA-256 45c226a079042516…

MALICIOUS

PDF

76.7 KB Created: 2021-05-16 08:23:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 934ee776064ed89f9120051401577fc9 SHA-1: b0740e19fce2af8b6d37c37989f35472d84136c2 SHA-256: 45c226a0790425165c882c541621c8f3c52522c0a6ba70afb574c0ceb99e9e2e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ponafet.ru/strik?utm_term=i+can%2527t+make+my+mind+up+meaning PDF link annotation
    • https://wobanavemo.weebly.com/uploads/1/3/4/0/134096337/kisaxogeze-zabodolodat-nolodijadusok-deridipov.pdfIn PDF document text
    • http://fuzuwozozat.mypressonline.com/11016216737.pdfIn PDF document text
    • https://tadinitalu.weebly.com/uploads/1/3/4/7/134744808/5845790.pdfIn PDF document text
    • http://myluckybet.xyz/rixira8uju4.pdfIn PDF document text
    • http://brumbum6.xyz/whirlpool_cabrio_washer_troubleshooting_lfxoyiu.pdfIn PDF document text
    • http://ferafukapawap.scienceontheweb.net/bedefijavasafokanikitov.pdfIn PDF document text
    • http://cyberghost.store/cisco_sg300-28p_specsj7c23.pdfIn PDF document text
    • https://moluzepin.weebly.com/uploads/1/3/1/8/131856103/9504736.pdfIn PDF document text
    • http://tamaxenipukeg.iblogger.org/8040621872.pdfIn PDF document text
    • http://merotudonor.mypressonline.com/14498279140.pdfIn PDF document text
    • http://simcars.ru/gefemulafep7jcb5.pdfIn PDF document text
    • http://nowuzoti.iblogger.org/29081865986.pdfIn PDF document text
    • https://wavasifowimuzog.weebly.com/uploads/1/3/5/3/135321241/dawewuxogekik.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/what_is_production_weekly.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wonetone.rf.gd/pkp_bielsko_biaa_informacja_telefoniczna.pdfIn PDF document text
    • http://buzuxujov.epizy.com/78607821421.pdfIn PDF document text
    • http://jimotomalugeji.rf.gd/how_to_get_a_private_investigator_license_in_arizona.pdfIn PDF document text
    • http://nomekerileme.epizy.com/bemuxivoxurar.pdfIn PDF document text
    • http://zusobudem.epizy.com/business_proposal_template_free.pdfIn PDF document text
    • https://e29a9437-b0a5-48a6-9afa-908397ce514a.filesusr.com/ugd/16a9c1_e9bc3f7fdff84f1b8da1a1d61a38915e.pdf?index=trueIn PDF document text
    • http://faleferesevo.onlinewebshop.net/diramokofijanuku.pdfIn PDF document text
    • https://d128792e-e0a8-46e0-98ed-b941f5da69b2.filesusr.com/ugd/b98abb_a46c733576f7419b8fef2bf9ff8e82aa.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 5224 bytes
SHA-256: 3e2d19eb3909b5f71f389dbe826abf582c20ce9cf37409c27ce1275191018c41
font_01_sfnt_off0000feb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB1 11460 bytes
SHA-256: 65a861ae4858602e90518d3f8a57644e045743e4e2fc1575bf1abd17f5c94487

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