Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff4fce3fab5180db…

MALICIOUS

PDF

81.1 KB Created: 2021-02-27 22:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4a9f6c303b2074f48c329c03accde4cd SHA-1: 85813f9ff4e1bd75c0285eee2a75658a1f22bfe2 SHA-256: ff4fce3fab5180db730d398c0f4c53f5cc681f4b6b1ced44c0b66232046f4312
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which are hosted on disposable domains or link farms, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though partially corrupted, appears to be a lure related to car maintenance, directing users to a suspicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=what+type+of+oil+for+a+2014+honda+odyssey PDF link annotation
    • https://sizomejuxitiz.weebly.com/uploads/1/3/4/7/134748976/gabukogeli-luvivis.pdfIn PDF document text
    • http://wacc-cat.org/azure_yaml_templates570ij.pdfIn PDF document text
    • https://pagopejej.weebly.com/uploads/1/3/5/3/135315805/4524585.pdfIn PDF document text
    • http://mirror-x.org/best_wheat_yield_per_acrexoi97.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/common_words_in_english_used_in_daily_life_with_meaning.pdfIn PDF document text
    • http://copytoshka.ru/how_often_do_you_change_transmission_fluid_honda6158k.pdfIn PDF document text
    • https://dimenitajobe.weebly.com/uploads/1/3/4/4/134444553/wulexupewoju-sugoton.pdfIn PDF document text
    • http://arevakar-travel.com/zujaxumuwixuxovipugiruruzhc51r.pdfIn PDF document text
    • http://stat-index-co.com/secondary_school_english_report_card_commentsb76g7.pdfIn PDF document text
    • https://dofopukirisozut.weebly.com/uploads/1/3/1/4/131437491/sojuxada.pdfIn PDF document text
    • http://homebig.space/wexafalobs86gr.pdfIn PDF document text
    • http://physcoo.com/17790483181rtzvl.pdfIn PDF document text
    • https://suvadigefutom.weebly.com/uploads/1/3/1/4/131406455/zigaregojoru.pdfIn PDF document text
    • https://viwoxewadekam.weebly.com/uploads/1/3/4/0/134016770/f95793bda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pululusodogi/59354616143.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/xijevagov.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/72144802516.pdfIn PDF document text
    • http://nokejufesuw.atwebpages.com/modosuzigamati.pdfIn PDF document text
    • http://xemigososefof.atwebpages.com/how_to_use_my_oster_steamer.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f20f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20F 5444 bytes
SHA-256: 0fb6df836d3430776230f4b6f2e878c2da457ea79620f064f1946544d82a0d80
font_01_sfnt_off0001049d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1049D 10632 bytes
SHA-256: 72ccce850544138c69dd7c4e96a824c118e3c75ba81b1d16ad2419af3272e8da
font_02_sfnt_off0001287e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1287E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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