Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29e7e3263987f54…

MALICIOUS

PDF

41.6 KB Created: 2020-08-06 03:05:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5665a22a41eb3f41fb4db99ad748558c SHA-1: 2ab48c0746f5cee425f07eaf8a272683ed81968d SHA-256: e29e7e3263987f54635ef92ff5c0ff96c778121a4c39ed353aea42871e70f89e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains a reference to the same URL, suggesting it's the primary lure. The PDF also contains a link farm heuristic, indicating a broader SEO poisoning attempt. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

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=lonely%20planet%20taiwan%20pdf%20free%20download In PDF document text
    • http://files.guamcocoscrossing.com/uploads/1/3/1/4/131483267/6c7e64864f906.pdfIn PDF document text
    • http://kudofo.timelineethiopia.com/uploads/1/3/1/6/131606060/sugodoxitapuj.pdfIn PDF document text
    • http://files.solosprinter.com/uploads/1/3/2/6/132681144/8159264.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/1/0427/8861/8396/files/31758538409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2532/5467/files/spring_boot_documentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3241/2311/files/96806939317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/electronic_ignition_system_using_contact_breaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/494005402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/66450386648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/noferenuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8941/8657/files/rojijefazavuxawusukilez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/watch_digemon_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0688/5027/files/davipufofis.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 4992 bytes
SHA-256: 56dfd7696201f913a3aebe2fbc9c0e49f5b29a8e5479af833e685e27b9f68793
font_01_sfnt_off00007582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7582 10580 bytes
SHA-256: 4dd5530834a84f320ced307a058c2206ab5c9e09450dd8598cd6730abae80707

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