Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e44f422a80fa8b0…

MALICIOUS

PDF

47.2 KB Created: 2020-08-05 16:58:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0843a4fdadfa411af16b3d7bb9411de0 SHA-1: 1218844ac63fa03301be58a44b0b01f9a27544f8 SHA-256: 7e44f422a80fa8b0650547e5e3dda50f0bba5cc681c7bc9253ea27d643964b90
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as a link farm for free PDF downloads, but the primary link redirects to a known malicious redirector. This suggests a phishing or scam attempt to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=authorship+of+the+book+of+james+pdf In PDF document text
    • http://gozovap.citizensinsurancesolutions.com/uploads/1/3/0/7/130739415/5765337.pdfIn PDF document text
    • http://files.penntownshipfire.com/uploads/1/3/0/7/130776298/e4c73db6ac.pdfIn PDF document text
    • http://files.apps.myworldrules.com/uploads/1/3/1/8/131871859/lugazatujafinoxo.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/1/0437/0749/8647/files/nutok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4959/8632/files/fevazebud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9919/9390/files/40566707271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/konovokog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4928/6817/files/image_processing_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4214/files/safufasunejobusig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/najopijojufabeduzolelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/47435131530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/rujekiverebojepudesafivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5765/0584/files/sipipuwadoginake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5041/7827/files/taromap.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_off000076bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BF 5516 bytes
SHA-256: eaebda998d50c4b923a0f1bc077eade2f0bcda16793af267b78b80a56e7886d4
font_01_sfnt_off00008957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8957 11324 bytes
SHA-256: 995fa57473c84df7c6af652638f42f9471acfef05b5fb2952104334b3a6e2f8a

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