Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee7f39e9df469b9…

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 18:15:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77d0f1cb7ec44d7ba42b760b9d167a96 SHA-1: 8790d97d2b127d2c114c9f0e561ae258cf9be7e4 SHA-256: dee7f39e9df469b9be3e61b5a78b572ede38021225b391df135c390136e4da49
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm of 28 external PDF links, with one pointing to a known malicious redirector at https://ttraff.ru/pify?keyword=carcinoma+cancer+pdf. This indicates a likely SEO poisoning or phishing campaign designed to drive traffic to malicious infrastructure. No scripts were extracted from this sample.

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.ru/pify?keyword=carcinoma+cancer+pdf In PDF document text
    • http://files.whidbeyislandnourishes.org/uploads/1/3/0/7/130740200/wuxebisexobidi-darirotinef.pdfIn PDF document text
    • http://files.jameshynes.com/uploads/1/3/0/9/130969238/tinixugabalila.pdfIn PDF document text
    • http://files.leonardpaul.com/uploads/1/3/2/7/132710756/5583091.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/1/0440/5955/8053/files/71979316024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/bagepirisuwiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5883/2294/files/novosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4253/6598/files/reluxefupazevozeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7805/0201/files/26464515547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/logub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/91558038940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6690/9081/files/gopowidonawefidem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2364/6365/files/credit_card_authorization_form_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/80466057670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/64230204085.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6573 4824 bytes
SHA-256: 20ff2ebe932a19b077365cf74b787e57d85ff1275eea92febd937f7b9bf2f88c
font_01_sfnt_off000075b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B4 10452 bytes
SHA-256: 738c8d3c1addaa89a34310bb8b92b79ef42410a31628df8cb4e0894878b9d336
font_02_sfnt_off00009965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9965 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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