Malicious PDF — malware analysis report

Static analysis result for SHA-256 613169b8b69aae75…

MALICIOUS

PDF

45.3 KB Created: 2020-08-14 23:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd763dbcea4a0750a93c06829e470d7c SHA-1: a5d37f5d795a12c947563546d2bd1f79c4abe162 SHA-256: 613169b8b69aae75fe160c72f3e611cefbc9a4ae653abca72312a82ea9b004f6
194 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, including one that redirects to malicious infrastructure at `ttraff.com`. This link is presented as a download for "text to speech windows 10 pdf", indicating a phishing or scam lure. The presence of numerous links, many pointing to Shopify-hosted PDFs, suggests a link farm designed to obscure the malicious redirector. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/wb?keyword=text%20to%20speech%20windows%2010%20pdf In PDF document text
    • http://files.niralidevgan.com/uploads/1/3/1/0/131070481/xifuxokawodikezixamo.pdfIn PDF document text
    • http://files.bellacalore.com/uploads/1/3/0/8/130814279/mumubimogamu-fupedevumebat-ropetiwajo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6298/files/5369316837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/rimivokobejonetigimapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/tezizujuxujiwiferezapifaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/lidepasikepizewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/xigefavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/wopiterapujitenurezaduze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/81135585452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1116/1768/files/8797325354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7865/5903/files/articles_grammar_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/25561279180.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E3 4996 bytes
SHA-256: a970eab677a43cc2552c24c94b5b0b532759daa60633c11763da5571914af68e
font_01_sfnt_off00007802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 10128 bytes
SHA-256: 67cb7162753596a07fce16677f066cc5257dbf78467da5499ad9d0181b15aac4
font_02_sfnt_off00009ab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB0 4324 bytes
SHA-256: 781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60

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