Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3c587a5468e4aa6…

MALICIOUS

PDF

37.4 KB Created: 2020-08-05 09:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ab32826ee85c79812eff743b3d74535 SHA-1: 873bbcfc0c1c7bf1a455cb1c13e6ab13fa07f2da SHA-256: d3c587a5468e4aa6fbe05a9701a94ed96d8ea71c26e05d384ad22c1199af31bc
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a gospel chords PDF. This link, 'https://ttraff.com/pify?keyword=amazing+grace+gospel+chords+pdf', leads to known malicious infrastructure. The document also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final malicious destination. The presence of a visual download button further supports a lure-based attack.

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=amazing+grace+gospel+chords+pdf In PDF document text
    • http://files.northwoodsquiltguild.net/uploads/1/3/0/7/130776246/9d87468.pdfIn PDF document text
    • http://files.sjhsasb.com/uploads/1/3/1/3/131379439/cd87a7eade.pdfIn PDF document text
    • http://files.kinderdancebrazoscounty.com/uploads/1/3/1/0/131070713/numatabatenedapus.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/1/0434/1350/4150/files/wonixetopetomufake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7731/1391/files/acrobat_reader_to_converter_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vebamuwonodivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/66013010430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/67095914000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/subject_verb_agreement_exercise_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/c_linked_list_stl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/rofosevezaput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/sirogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7656/4630/files/87947065171.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_off000052ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52ED 5608 bytes
SHA-256: 2250c3395ad46ca7884f890c7cae9c24e1d07fa72bddf932f1eb6a062ed9acd3
font_01_sfnt_off000065d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D7 10324 bytes
SHA-256: c5b2465f981ce70b4d6a5be1d2e63cb849ce40218ea09622a80cde3c8e7b68ad

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