Malicious PDF — malware analysis report

Static analysis result for SHA-256 13973cf7a3393892…

MALICIOUS

PDF

45.0 KB Created: 2020-08-09 00:52:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ceb242ffc7679733fcceac13b7229b9b SHA-1: 54186d6081574993e2831b13afe6adb527ad4a3e SHA-256: 13973cf7a339389269a7b4d508747fc362739d9b92b98f44ef52493a323c8c61
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded links, many of which point to a redirector service. The primary lure appears to be a fake PDF download related to 'medicinal uses of avocado seed'. The embedded links likely serve to distribute malware or phish for credentials by redirecting users to malicious websites. The ML classifier 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.cc/pify?keyword=medicinal+uses+of+avocado+seed+pdf In PDF document text
    • http://regajite.dreamworldliterature.com/uploads/1/3/2/6/132682883/kizinoxepumu.pdfIn PDF document text
    • http://files.domicilyachthotel.com/uploads/1/3/0/7/130775846/50a46b444.pdfIn PDF document text
    • http://files.erikabrincat.com/uploads/1/3/2/6/132695200/d2f0ec.pdfIn PDF document text
    • http://goxufu.lebaneseaustralianfriendship.com/uploads/1/3/0/9/130969060/c06182c67.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/1/0437/8948/4190/files/bawarezoxixukovoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2176/0672/files/vemevisin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6702/2239/files/mosudiwomomerujogew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8030/2238/files/suxomazorovesetawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/76324678247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2314/5896/files/fufazotuvujazapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6745/5128/files/rosefopizup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2628/2658/files/edits_for_free_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/potassium_ferricyanide_msds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/worship_music_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1184/8861/files/arduino_ide_datasheet.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_off00007262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7262 5120 bytes
SHA-256: 23e42d7b7e9a9b7d35201176a28eb6a0d126c3caa32bbc720b269f4df845b509
font_01_sfnt_off000083fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FC 10300 bytes
SHA-256: b7883fdb04e2895f27752991a35e10b20cbaf0857077960ec8f0b0e83660f1a5

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