Malicious PDF — malware analysis report

Static analysis result for SHA-256 030cb387876e6ec3…

MALICIOUS

PDF

56.0 KB Created: 2020-10-01 12:53:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5e9eafa2a9e3ccde207746d4bc3a6531 SHA-1: f534bce95522abb199b15f19fa90a20f6b8cabaf SHA-256: 030cb387876e6ec33cf624b4c1d2dff5f9acfe5137d1bbc8baf4676175f29638
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=solving+and+graphing+inequalities+test+pdf In PDF document text
    • http://xoxuzon.e-o-v.com/uploads/1/3/1/8/131856222/xemomavebel_sazaf_detugoduzevibep_jusuled.pdfIn PDF document text
    • http://zerobiwop.nyehyrst.com/uploads/1/3/1/0/131070705/bfdacf727de98.pdfIn PDF document text
    • http://petig.hollysspringdrents.com/uploads/1/3/1/4/131453013/xovubamotatire.pdfIn PDF document text
    • https://site-1036965.mozfiles.com/files/1036965/lazawidujefuxik.pdfIn PDF document text
    • https://site-1037079.mozfiles.com/files/1037079/lafasumaker.pdfIn PDF document text
    • https://site-1037055.mozfiles.com/files/1037055/50252211512.pdfIn PDF document text
    • https://site-1038946.mozfiles.com/files/1038946/11060427425.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://cdn.shopify.com/s/files/1/0481/2983/5161/files/metodos_de_investigacion_social.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/0433/3717/files/economic_choice_today_opportunity_cost_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6955/5359/files/wakujetujozozevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0472/2760/1061/files/british_constitution_for_dummies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/1912/0021/files/elijah_and_john_the_baptist_reincarnation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ea2e9d6-5753-4efe-bea2-a837eff6625b/410633938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1d51e89-60a9-496c-8ef3-fa9fafe7091e/vimurozetinuvoralegefisu.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_off00008617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8617 5476 bytes
SHA-256: 68131e8377611306968ec7c3f2066ae326f63c143a64c4282c743ba52f2cd517
font_01_sfnt_off000098a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98A3 13588 bytes
SHA-256: c27806b0e2d72db7dfb442996612863cbca9792d59bacb8b6a0f39aa5cdd60cd
font_02_sfnt_off0000c467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC467 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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