Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e6307be22146db6…

MALICIOUS

PDF

39.5 KB Created: 2020-08-15 15:44:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4290ad3e035ca9aca49af7f4505515db SHA-1: 4a9a59d532152f9406fb038c084738fef4e116ab SHA-256: 6e6307be22146db6d63587c78c9b252815d365d33c88d3b839ec43560f84aa2c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and SEO farms, with a primary lure related to 'renal failure stages'. The ML classifier strongly indicates maliciousness. The embedded URLs, particularly the one to 'ttraff.com', are likely part of a phishing or malware distribution scheme, aiming to redirect users to malicious content.

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=renal%20failure%20stages%20pdf In PDF document text
    • http://gowepip.jeanneschinto.com/uploads/1/3/2/7/132740764/fe3e14b8d5b.pdfIn PDF document text
    • http://files.mumfullofdreams.com/uploads/1/3/2/6/132695714/bonisamuteso.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/1/0430/6193/6282/files/33045809551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/advantages_and_disadvantages_of_internet_communication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0536/1821/files/bosofewemif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4541/9173/files/60491496345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/10426370474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/53446463789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0411/6637/files/difference_between_cdf_and_pmf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/lefoxidokozukotikapumel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/jamba_juice_job_application.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 1

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_off00005d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D64 5216 bytes
SHA-256: f3ffd6a5246a6d0d0c6a2b89c2f8f5c28514adb61decccc136b45fefd4225caa
font_01_sfnt_off00006f31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F31 10104 bytes
SHA-256: b01553f1380ac477c46b95859a927b8b9f05aa8cf69f65cc7f2a9400ef298e8e

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