Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a3bf96dda0c2af…

MALICIOUS

PDF

40.0 KB Created: 2020-08-14 07:32:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acecf14c3271786f95c978f5fa97e738 SHA-1: 3a0ac53747600d0e878164dd538dc05159afc38a SHA-256: b1a3bf96dda0c2afae1906d34d4ce9413b4498d138626318edaba57821c00dd6
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded links, including one to 'ttraff.com', suggest an attempt to lure users to potentially harmful sites. While no scripts were extracted, the structure and heuristics strongly indicate a phishing or malware distribution attempt.

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=nordic+ware+half+sheet+pan+dimensions In PDF document text
    • http://files.uofaasce.com/uploads/1/3/2/6/132682040/kogefojuzonera_dopituw.pdfIn PDF document text
    • http://files.rocwrites.com/uploads/1/3/1/3/131379615/nolojefavutifanoxi.pdfIn PDF document text
    • http://files.mediocreatbest.net/uploads/1/3/0/7/130739316/limokegev.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/1/0428/0333/1231/files/jitinofumopozef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/42184001676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/27420138184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4705/files/resistance_chauffante.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8145/0147/files/xokaridodofagawelib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8525/1235/files/97339316487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/gefopulepeledu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5109/6984/files/70316302215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7218161301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0319/1193/files/33949497355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/zisis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/arithmetic_mathematics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8903/4402/files/houses_in_vedic_astrology.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 5

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_off00005c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C41 5456 bytes
SHA-256: 2bf77d3ebbd9e8221d1bdc0968ae533fd7d3a50669faad3e1c6537c4fd6a11cd
font_01_sfnt_off00006eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB8 10580 bytes
SHA-256: 4eb5d89a30f1e1c187f50259e404a25a50db8f1d9de353c0e9b2722101cc7c03

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