Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f227d613c3b851…

MALICIOUS

PDF

39.7 KB Created: 2020-08-09 18:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57198229899f07c764b5dda0ac1d7302 SHA-1: 1f94c8b7beb264fbf080ea2b52342c602a125bbe SHA-256: 69f227d613c3b85175ecec9b32111ca3d56117a850fe06e777a0e0398d56939d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=autoregressive+distributed+lag+pdf'. This indicates a phishing or scam attempt, likely using the 'free download' lure. The ML classifier strongly supports the malicious verdict.

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=autoregressive+distributed+lag+pdf In PDF document text
    • http://files.pennyfineart.com/uploads/1/3/1/4/131453219/5865204.pdfIn PDF document text
    • http://files.ncstateroleplay.com/uploads/1/3/0/9/130969545/4382149.pdfIn PDF document text
    • http://files.mssteele.com/uploads/1/3/1/8/131856392/6422440.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/1/0434/6488/4384/files/pikakokugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7946/2040/files/html_to_library_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6563/7019/files/65688535446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/57517020068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/74455579932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/wefasitovodamos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/65583192877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/4306534244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/27628900825.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_off00005c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8B 5400 bytes
SHA-256: e0b5555e689077b315a8aa4a2221a58c612f7a848ddfb8e7aade6667b21da7bd
font_01_sfnt_off00006efc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFC 10376 bytes
SHA-256: 3c3f703a3b42c63ddf2863f03a113168b6c5aa7c8f3da80457e25bd0a7ef0997

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