Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d44a3aea11de1e3…

MALICIOUS

PDF

35.7 KB Created: 2020-08-07 15:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3165ada71d37f7ce4ed599ef6cf9aa2 SHA-1: e48ca715979a97d63ea307b0406decfaf066c34b SHA-256: 5d44a3aea11de1e3725ab271325056cec55b7de2dac91b00c63eea87e416bb8e
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://ttraff.cc/pify?keyword=cempaka+kuning+pdf In PDF document text
    • http://files.cathsquilting.com/uploads/1/3/0/9/130969192/kidevukokapifis-godipo-senowadirawir.pdfIn PDF document text
    • http://files.covidchurchresources.com/uploads/1/3/0/8/130813667/rezolinajaka.pdfIn PDF document text
    • http://files.beinsynch.com/uploads/1/3/0/9/130969372/7113184.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/1/0431/5847/0816/files/dunevevoganepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/mcc_codes_usmc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2702/7352/files/51475238405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/components_of_trustworthiness_in_qualitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/goxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0344/4380/files/andhra_university_distance_education_notification_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9327/0429/files/gifomubilisalunodewoxidil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/zuduloxirovobunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2402/2680/files/70537085050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/nezozekok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92399027362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/zumejimofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/bekidito.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 4

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_off00004f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2C 5024 bytes
SHA-256: 020539087abf849d0b80a1e1c244fada42d30c4c8ca3477a4b2bd9d7e3c65aae
font_01_sfnt_off00006039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6039 9848 bytes
SHA-256: 2e6c632f88bd453ffec82c02987a88d07f3f5a5552b143f71aa218c11f192192

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