Malicious PDF — malware analysis report

Static analysis result for SHA-256 a31047404590c649…

MALICIOUS

PDF

44.1 KB Created: 2020-08-22 00:03:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91a9dfea57d7d71466c53d3594370ed7 SHA-1: 548b7fbaac3deea8f2bfdb1976a5fc3ea5603456 SHA-256: a31047404590c64971de4b95e2cbfe382e645839cd5e9ac1692f66be16872359
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as a "draw.io family tree template". The document also hosts a large number of external PDF links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse. The primary malicious link is https://ttraff.cc/pify?keyword=draw.+io+family+tree+template, which likely leads to further malicious content. The file was generated by wkhtmltopdf, a tool often used to create malicious PDFs.

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=draw.+io+family+tree+template In PDF document text
    • http://pusoruna.coolanniestravels.com/uploads/1/3/1/3/131379578/7738159.pdfIn PDF document text
    • http://gobub.tiffanyalesha.com/uploads/1/3/0/7/130776688/lasukakaxozajapeb.pdfIn PDF document text
    • http://files.kilthaog.com/uploads/1/3/0/7/130775712/bumukumozuzi.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/1/0428/9835/8432/files/mekokagowofulagifofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/zosonigakosiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/vuwifokefafanole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7190/4673/files/51934759607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6869/3407/files/discussion_method_of_teaching.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8458/2813/files/demon_s_great_hammer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8912/files/98523134468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/icy_veins_diablo_3_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9157/files/buried_child_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75877947267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/caracteristicas_psicologicas_del_ser_humano.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA3 5092 bytes
SHA-256: e8b3f3951716790abfc397dc5028328f85ca615df5f5756b3f7eb45e2c2ea1f2
font_01_sfnt_off000080fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FE 10304 bytes
SHA-256: ec7128d44b4265010d222c7c429e01180c5497669c7b9de4910c1e79c1ff0011

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