Malicious PDF — malware analysis report

Static analysis result for SHA-256 94cc62638b6d3cc6…

MALICIOUS

PDF

80.2 KB Created: 2021-04-22 03:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7578ad72471782a81b86e908b37ce534 SHA-1: 27b9c0fad1ad12388628de0dfef29f6c9eb51123 SHA-256: 94cc62638b6d3cc69fe9648a8174c0ae7d473fa55e2b3905ec356e0121adc9b4
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded URLs and heuristics indicate it functions as a link farm, with one URL specifically mentioning 'strik' and car specs, suggesting a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://zajinet.ru/strik?utm_term=2016+corolla+le+specs PDF link annotation
    • http://gabutetidik.22web.org/vufawanevopenavojupabid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443608/normal_5fcb4ab51bf5d.pdfIn PDF document text
    • https://cdn.sqhk.co/litigoruf/CTjiRbP/zogopaditudafiwukibonawe.pdfIn PDF document text
    • http://pollsexpert.com/backyard_croquet_set_uprur7v.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/8ifiehf/aztec_coin_pirates_of_the_caribbean_for_sale.pdfIn PDF document text
    • http://kevifiregerufug.scienceontheweb.net/soduviforegedobu.pdfIn PDF document text
    • https://cdn.sqhk.co/gikunixa/jgfhbtO/glacier_national_park_backpacking_trails_map.pdfIn PDF document text
    • http://mujabelor.mywebcommunity.org/wuxun.pdfIn PDF document text
    • https://cdn.sqhk.co/zuretagugaf/ggujiou/26203824591.pdfIn PDF document text
    • http://luloxijemise.medianewsonline.com/keruse.pdfIn PDF document text
    • http://vezukugijisepo.scienceontheweb.net/21440428959.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409394/normal_603ecfafc7a62.pdfIn PDF document text
    • http://gupirigugorixuf.sportsontheweb.net/nawixekavi.pdfIn PDF document text
    • http://lightstart.xyz/51754761187f51hl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jonevojufe.rf.gd/factors_affecting_the_climate.pdfIn PDF document text
    • http://pijosufun.myartsonline.com/clases_de_ingles_intermedio.pdfIn PDF document text
    • http://gufopexolax.myartsonline.com/jarafugurijoxu.pdfIn PDF document text
    • http://lidiremuvuzanas.rf.gd/dulopejutan.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f67b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF67B 5312 bytes
SHA-256: 00efbbfaa881b5929fead353fb0219285fd5e36e1d113b2f4cd204db93fcb375
font_01_sfnt_off00010896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10896 13144 bytes
SHA-256: e4c82e207e181379f4c63dea1bb8a11dd95ebecf55be17bce1d7d23aa1ea8fdc

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