Malicious PDF — malware analysis report

Static analysis result for SHA-256 12b085df6c8dc05d…

MALICIOUS

PDF

64.7 KB Created: 2021-02-28 03:22:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4ad32d265fce8253b759a358dceda44d SHA-1: c8761500374f78ca9d869de30f3303464609206d SHA-256: 12b085df6c8dc05d0bf3116237569d984fbebbe170bec0a733fb6895e2e1d2d8
216 Risk Score

Malware Insights

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

The PDF file contains a lure related to a "2010 camaro zl1 convertible for sale" which redirects to a link farm of 30 external PDF files. This pattern is indicative of a phishing or scam attempt, likely designed to drive traffic to malicious or ad-heavy sites. The ML classifier and ClamAV detection strongly support the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/award?keyword=2010+camaro+zl1+convertible+for+sale PDF link annotation
    • https://xoxekoxezugox.weebly.com/uploads/1/3/0/7/130738790/dubevopati.pdfIn PDF document text
    • https://jofuwutiduf.weebly.com/uploads/1/3/4/7/134728528/woneti_dizonum_kuxurubidikaze_lubolavozuvego.pdfIn PDF document text
    • https://pezibife.weebly.com/uploads/1/3/4/3/134376528/paxilifizu.pdfIn PDF document text
    • http://xofajenakimexo.iblogger.org/cactus_pear_nutrition_information.pdfIn PDF document text
    • http://konobemozitu.iblogger.org/sheet_vinyl_flooring_installation_tools.pdfIn PDF document text
    • https://pudavupotel.weebly.com/uploads/1/3/5/3/135335197/3836540.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xakusineba/appear_in_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/bible_study_topics_and_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/beam_splice_welded_connection_design.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/carcassonne_travel_guide.pdfIn PDF document text
    • http://pazixurofuni.epizy.com/20596220566.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/alexander_movie_tamil_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/62821928010.pdfIn PDF document text
    • http://dobejul.epizy.com/chemistry_regents_labs_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/adversus_nationes.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/tattoo_aftercare_advice_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/bawakema.pdfIn PDF document text
    • http://degepedafapuf.epizy.com/darkness_rises_gear_upgrade_guide.pdfIn PDF document text
    • http://minefoz.rf.gd/kimajazugapim.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/jixajilusotafatugezevejej.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC275 5508 bytes
SHA-256: ca4f6506038b26df24b06749770ac9ab7d1053aaee89513264442a4c4f15f12f
font_01_sfnt_off0000d52d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52D 9492 bytes
SHA-256: f279bf84b6f95fdbb6b8be0d2c702a633c51add339bd12fc86bc397e796f5634