Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb562004316060b…

MALICIOUS

PDF

39.7 KB Created: 2020-08-19 13:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f321fd71ae83f37f713b7d958bfe7c8 SHA-1: 7bf59e4c275868c7abc306861835b52ef8e764fe SHA-256: bfb562004316060bacdfbb471a72958d809f171df6d13b51a590fa15be8b730a
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a utility for printing web pages to PDF. The document body and embedded URLs reinforce this lure. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted, limiting the analysis of further execution stages.

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=print+website+to+pdf+as+it+appears In PDF document text
    • http://dopof.nikiahseeds.com/uploads/1/3/2/6/132681351/kosepamasoli.pdfIn PDF document text
    • http://files.nsacchitella.studio/uploads/1/3/0/7/130775515/7d5235.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/1/0430/8094/1729/files/dexamagulexatulezirubebuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/60th_wedding_anniversary_invitations_templates_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/3009509520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1756/6368/files/nomelakopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/93716279985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8775/files/zebuxavisuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/81576508125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9825/8088/files/runir_2_fichiers_en_un_seul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65496272691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/21914834829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1804/2018/files/delukaxawaxi.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 2

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_off00005b56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B56 5236 bytes
SHA-256: d99e42b4c32e311cad091c0e46327f2733fb6675fc24be1f458f87332c362ab5
font_01_sfnt_off00006d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D35 10804 bytes
SHA-256: 9b5feff4cb59952486f4f852eaed8f198b0f926acb8c31e6354f7f8284395d04

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