Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b7a0ec36570011…

MALICIOUS

PDF

41.1 KB Created: 2020-10-09 15:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 9692ae83b27a111e7032004c93bba89b SHA-1: 81466c12bb00a7282b4640a5737117a4f6fcebc4 SHA-256: 72b7a0ec365700118702901241286bf179b30fd73a7e1e79fe4c3396cce648d2
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://ggtraff.ru/strik?keyword=actron+autoscanner+plus+cp9180 In PDF document text
    • https://site-1037057.mozfiles.com/files/1037057/vapudumesufum.pdfIn PDF document text
    • https://site-1036886.mozfiles.com/files/1036886/58574971753.pdfIn PDF document text
    • https://site-1036656.mozfiles.com/files/1036656/narobig.pdfIn PDF document text
    • https://site-1037867.mozfiles.com/files/1037867/wemugewane.pdfIn PDF document text
    • https://site-1036759.mozfiles.com/files/1036759/divagot.pdfIn PDF document text
    • https://site-1040284.mozfiles.com/files/1040284/zoziwazupuwaxuduj.pdfIn PDF document text
    • https://site-1041075.mozfiles.com/files/1041075/14793783198.pdfIn PDF document text
    • https://site-1039935.mozfiles.com/files/1039935/47012670815.pdfIn PDF document text
    • https://site-1036934.mozfiles.com/files/1036934/99966127358.pdfIn PDF document text
    • http://monapab.maruf.eu/uploads/1/3/1/8/131857243/vutum.pdfIn PDF document text
    • http://kugubumas.savemyrelationship.ca/uploads/1/3/1/6/131637881/nisive.pdfIn PDF document text
    • http://files.kl-creation.fr/uploads/1/3/0/7/130738719/nukuwudaso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/nivaxubumufususixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4539/5368/files/bagofesibepaxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3991/5671/files/39440998621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/taste_of_korea_carrollton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7590/5957/files/human_body_2004_creative_teaching_press_skeletal_system.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_off00005a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A85 5460 bytes
SHA-256: 5735f7b72f7c1211c88f5cbe26093df3e6ac02481703509e23c76e69de6055b3
font_01_sfnt_off00006d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D22 13460 bytes
SHA-256: 57dfabb0f581c4b19705b6ec139bbe7dfe865422f56f2acf2904fe8094beac06

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