Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd26d8c0bc24870…

MALICIOUS

PDF

45.1 KB Created: 2020-08-22 16:09:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 618a586cbfa563da73eb49098cda4e55 SHA-1: e9daf67b34a9a473bad347099b43ad39cf9e5d26 SHA-256: 8dd26d8c0bc24870c6b6f067a7e58f716af3bf855374e8a13f63d76d3a0267d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a report. The document body, though heavily obfuscated, contains the same URL and text as the malicious link, suggesting a social engineering lure. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=rapport+d%2527+information+activisme+actionnarial In PDF document text
    • http://files.freshperspectivenews.com/uploads/1/3/0/8/130814714/2898012.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/22072426338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6127/9896/files/93100259621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/mogiboxovupaguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/bezudodawumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8277/9541/files/novomunine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1227/5870/files/using_social_media_in_the_workplace_to_communicate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1087/5815/files/52708883765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pigagijewunafusigiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/100_carols_for_choirs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5235/8049/files/kickass_torent-_com_free_download.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D1 5188 bytes
SHA-256: 59310194dfb3a8b4fff44b6ba5e4cdc17dedf38e0fc3481730e21ab69bfc4950
font_01_sfnt_off00007669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7669 10300 bytes
SHA-256: ffc6e0b5129c51621429ba5331c834d73c25d75166f7e3c7db1268c4d64ba516
font_02_sfnt_off0000999a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x999A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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