Malicious PDF — malware analysis report

Static analysis result for SHA-256 0197d34ac120e64b…

MALICIOUS

PDF

41.0 KB Created: 2020-08-23 18:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 499deb579519ad0af0961ca93129c4b6 SHA-1: b74f82f5035d209110499061d2df7398c1c92f55 SHA-256: 0197d34ac120e64bb96085565918862e1c214b1bc54c357a5b92921b8d3e7915
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a URL to a Shopify domain that appears to be part of a link farm for SEO-poisoning. This suggests the document is designed to trick users into clicking malicious links under the guise of free downloads, ultimately leading them to harmful content.

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=byref+argument+type+mismatch+worksheet In PDF document text
    • http://wufesoxog.greenhousewivesbathco.com/uploads/1/3/1/4/131410399/vawege.pdfIn PDF document text
    • http://files.zenoacton.com/uploads/1/3/0/7/130775411/vamivilesi.pdfIn PDF document text
    • http://files.reachingforgreatnessguide.com/uploads/1/3/1/4/131437750/9750321.pdfIn PDF document text
    • http://files.salononpointsuites.com/uploads/1/3/1/8/131857305/vosikoradi.pdfIn PDF document text
    • http://fiwex.rosesoma.com/uploads/1/3/1/8/131858661/e5fad4edb3d31.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/1/0432/0555/8436/files/building_construction_illustrated_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/why_we_love_the_way_we_do_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8286/5047/files/jirufuvakaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9707/9460/files/fugokelefazume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/wokajoxov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5719/8757/files/sabododefewusofumupofaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6615/5430/files/papunarinowubulasuwupigun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/definition_of_alzheimer_s_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/56709030275.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_off00005ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF0 5704 bytes
SHA-256: f32e22c3e4eb556143cadd19ef8b8105520b9321f780646d764174085c445bd6
font_01_sfnt_off0000734e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734E 10568 bytes
SHA-256: f239f5e4eccc2763da96acfff7e3ccf711c39f269aec334d50b572485aea88c9

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