Malicious PDF — malware analysis report

Static analysis result for SHA-256 809767e28b4e1626…

MALICIOUS

PDF

41.8 KB Created: 2020-08-06 11:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 432783bc2c92b94af86277f01f84fecf SHA-1: 2a9986c835b84e634cc56a31b5eeb4d635c5d55f SHA-256: 809767e28b4e16266b849160c916faaee5078b846a6d25353c2e8999b33c30b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links pointing to redirector domains, including 'ttraff.com', which is flagged as malicious. These links are presented as downloads for PDFs, but ultimately lead to malicious infrastructure. The ML classifier strongly indicates maliciousness, and the structure suggests a link farm designed for phishing or malware distribution.

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=cavatina+ukulele+tab+pdf In PDF document text
    • http://zigovas.rush4kids.com/uploads/1/3/1/3/131383314/9281aa.pdfIn PDF document text
    • http://files.completehandymaninparis.com/uploads/1/3/2/7/132740270/dfc7398b61.pdfIn PDF document text
    • http://files.thejonesfarmvt.com/uploads/1/3/2/7/132740435/4387114.pdfIn PDF document text
    • http://files.kristenjoybaker.com/uploads/1/3/1/6/131636935/bubojufiw.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/1/0430/6989/8913/files/pinigaxasojusagipapuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/ginupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5139/2922/files/26997916593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gamazenerovisexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/m3u8_url_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7988/4186/files/derivatives_markets_mcdonald_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/75839383469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/gheat_engine_6._1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2771/0630/files/biduputubupurafibux.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 4

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_off0000656e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656E 4928 bytes
SHA-256: bf954144e2d155d4bca1446561051b526b1aa23d4f269482b95a11fd801f2cc5
font_01_sfnt_off00007649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7649 11028 bytes
SHA-256: a74a98a0d0d6f3b0c128b994ba3ac4bda2f3d16ada109f77592606270662b747

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