Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b9875a3fb43221f…

MALICIOUS

PDF

42.8 KB Created: 2020-08-05 05:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54cacd56a58c1f0692d6bdd1abbbb1cf SHA-1: 28b1510c94852ae482d7c0c8010b6ab26e54ed42 SHA-256: 1b9875a3fb43221fff1bdadf9a868124a36ce6e3ed637da2ed7c4153002a47db
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm. One of the primary links, 'https://ttraff.com/pify?keyword=biperideno+bula+pdf', is identified as a malicious redirector. This suggests the document's purpose is to direct users to malicious infrastructure through a series of redirects, likely for phishing or malware distribution.

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.com/pify?keyword=biperideno+bula+pdf In PDF document text
    • http://files.thedigestivehealthclinic.com/uploads/1/3/0/9/130969254/nujuwiduxibiwozeveni.pdfIn PDF document text
    • http://files.gumbauctionandrealty.com/uploads/1/3/2/7/132740435/gisukituk_wiwidulixejisav_siwimejuvep.pdfIn PDF document text
    • http://files.ascacupuncture.co.uk/uploads/1/3/1/3/131378952/bolezoma-loruvomevetilez.pdfIn PDF document text
    • http://files.irieiwaforstudentsinc.org/uploads/1/3/0/7/130739383/4303262.pdfIn PDF document text
    • http://files.negsbestthing.com/uploads/1/3/2/8/132815961/riwemuto.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/1/0435/4765/6351/files/52775724950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/fukamibin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4547/7783/files/49206263501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/84240254289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8455/4141/files/contabilidad_basica_asientos_contables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/69969765018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7430/3638/files/apkhere_minecraft_0._14._0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/seduzowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2593/files/2005_toyota_corolla_wiring_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9892/2403/files/zifakoludipu.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_off00006aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA2 5044 bytes
SHA-256: 1f7035660db01673b6375bd42c3b7dd51cd72c961779f9da2405e3808aa25db7
font_01_sfnt_off00007bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD6 10088 bytes
SHA-256: 88d770e6632fef4bb31a9fd45d12b8ccb674a2e651af36205d4222c201eca0fa

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