Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e3b6d5fd0e31bd…

MALICIOUS

PDF

41.1 KB Created: 2020-08-26 18:12:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5cd6466ccbbd594cc4c0ddad0b608a6b SHA-1: fdb2ddf203bfa32f38774740ccd5894f7d22b0ca SHA-256: c6e3b6d5fd0e31bdc8ea4b4853ab5b8debf7e679f3b912da42e4fcfeeaa94ecd
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it features a link farm with numerous PDFs hosted on Shopify, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains the text 'First aid step 1 2015 pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the attack pattern of enticing users to click a link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=first+aid+step+1+2015+pdf In PDF document text
    • http://fusukako.mcnamaragypsies.com/uploads/1/3/1/4/131438500/f1410b439a3.pdfIn PDF document text
    • http://files.designsbymegan.com/uploads/1/3/2/7/132740291/zobigedesid.pdfIn PDF document text
    • http://xegirikom.lorgemusicarts.com/uploads/1/3/2/7/132712109/naxopo.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/1/0431/9028/8541/files/beyonce_hit_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0495/2477/files/multiplying_binomial_and_trinomial_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7226/6150/files/ridezuvitivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/libro_rojo_carl_jung.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6172/2788/files/auditing_and_accounting_cases_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/61490946710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2556/files/john_legend_tonight_mp3_download_tooxclusive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2210/4229/files/wudulirufoxoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/77644044513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/gene_bertoncini.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_off00006290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6290 5408 bytes
SHA-256: c2688ee4f0c8c9efd6d62862c37e2c8ce408660c7321206b5eaa162b346a5b89
font_01_sfnt_off00007508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7508 10156 bytes
SHA-256: f2e829ba7b56f3c75c09b611e0c4fe7bf73cb28dd1eab1ed4a702a5596422b80

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