Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6f583680d1fc8f…

MALICIOUS

PDF

37.6 KB Created: 2020-08-24 10:38:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b20a755744dcca283d20d6a6ff0bf808 SHA-1: adffc71254e1fb587f54e33d615897df06eda86a SHA-256: 6b6f583680d1fc8fa926152a40b5f80a5d976e47405b898741c4410d934a5309
194 Risk Score

Malware Insights

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

This PDF contains a mass of external links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though obfuscated, contains a URL that is also present in the malicious redirector. The presence of numerous links suggests an attempt to distribute malicious content or phish for credentials by luring users to external sites. No scripts were extracted, but the PDF structure itself facilitates the 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.cc/pify?keyword=aws+cli+cloudformation+validate In PDF document text
    • http://mulivu.marleemoses.com/uploads/1/3/1/3/131384281/5326932.pdfIn PDF document text
    • http://files.botanicaibukoleshop.com/uploads/1/3/1/4/131437792/209958.pdfIn PDF document text
    • http://files.eddefenseleague.org/uploads/1/3/2/7/132740805/2009417.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/1/0437/5874/7800/files/kiwaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/62574699927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4629/files/26668494868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9037/files/peoples_encounter_movie_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6308/2146/files/mission_mangal_movie_songs_bestwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9170/5500/files/vowigofarukorazuvololo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2163/7544/files/58594289184.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_off00005446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5446 5308 bytes
SHA-256: 8b218c3b45d597b84fe7662f393cd3d397aaf74ceb6bf0c9ee2e58337aa55fa0
font_01_sfnt_off00006642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6642 10476 bytes
SHA-256: c5f62a15e93bb49bdfac56f303606d97cdb93ce4b3a99eae1b9216be990320fd

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