Malicious PDF — malware analysis report

Static analysis result for SHA-256 083a67a777efd7c0…

MALICIOUS

PDF

33.4 KB Created: 2020-08-16 20:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7e6cb2a4c8260536a94d0e45323a71f SHA-1: beb9e16442f814bf6facbfede5cc7fed8dd63586 SHA-256: 083a67a777efd7c01f4cddbc6abd205becbb17ed9c9634f6cd818fae32d491bd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to Shopify domains, but also includes a critical link to the ttraff.com redirector. This indicates a link farm and SEO strategy to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lure users to malicious infrastructure.

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=loud+sound+alarm+tone In PDF document text
    • http://files.cfhsperformingarts.com/uploads/1/3/0/9/130969830/4446236.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/1/0435/4893/4295/files/30050710040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/chapter_3_quantitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5143/files/27294449724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/69170891104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51730359377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9582/6336/files/netonozorokemerexuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/gazadig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/captains_of_crush_training_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3567/0166/files/92164909920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9128/7461/files/evil_dead_ii_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/sadewuwifaxi.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 3

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_off00004521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4521 4912 bytes
SHA-256: ded32170f3d030cd95811426c82548e8d8b0c3859773afe9f4d57c005f3367a9
font_01_sfnt_off000055b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55B7 10388 bytes
SHA-256: 1f75b7d058f62885209f330d9c5b3213bdd5576f28bc44a0cfeeaabe9fffee73

Open this report in the interactive analyzer, or submit your own file for analysis.