Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b425de0600494c3…

MALICIOUS

PDF

74.2 KB Created: 2021-03-31 14:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d51cc23ea80515086e84a5d5fbf77222 SHA-1: d39d6a2a36fccd12f785d48e9eb5db5d5a4da770 SHA-256: 0b425de0600494c3af0175a0e83e5a9360a629cf95a0dff3dd26d0a4b22b9560
196 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Weebly and other free hosting services, which is characteristic of SEO-based link farms designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the attack by hosting numerous redirector URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jumiwimov.ru/wix?keyword=sojourner+truth+house PDF link annotation
    • https://tugokuwotim.weebly.com/uploads/1/3/1/3/131379049/17779f870f6bfa.pdfIn PDF document text
    • http://xonigej.mypressonline.com/business_administration_and_finance_burlington_books.pdfIn PDF document text
    • https://musekakilex.weebly.com/uploads/1/3/1/4/131406804/57e1d644fae9.pdfIn PDF document text
    • http://bowanizi.22web.org/modozitozusuvufezuwikam.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/artaud_obras.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/authentic_assessment_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/57960664536.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/rise_n_shine_song.pdfIn PDF document text
    • http://manovina.mypressonline.com/mezawep.pdfIn PDF document text
    • https://s3.amazonaws.com/rizoli/acer_aspire_7750g_repair_manual.pdfIn PDF document text
    • http://dalosizofovabes.medianewsonline.com/51275952251.pdfIn PDF document text
    • https://xonasuxodu.weebly.com/uploads/1/3/2/6/132681295/xerajiranera-dopibemibexixur.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/organic_chemistry_volume_2.pdfIn PDF document text
    • https://gowumobajakexe.weebly.com/uploads/1/3/4/5/134585768/8801827.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/what_model_rainbow_vacuum_do_i_have.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kamegil.epizy.com/71956406988.pdfIn PDF document text
    • http://vovakupalujum.onlinewebshop.net/bacterias_gram_negativos.pdfIn PDF document text
    • http://jorowubibe.epizy.com/kumotuwekemotiwaf.pdfIn PDF document text
    • http://wimixuv.epizy.com/how_to_use_excel_sheet_formula.pdfIn PDF document text
    • http://tedusola.epizy.com/sazizenuba.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_off0000e7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AE 4712 bytes
SHA-256: 32acd42df51ea468aa0806a2a9aecc497bf7a299b2e03ac77b8062fa0286775e
font_01_sfnt_off0000f7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7AD 10676 bytes
SHA-256: 1ef5fcbd0eb0c104821cf56d379e2d9a4c3e9ccc416381622124272e61ad93c1

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