Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b34fca23aee7db2…

MALICIOUS

PDF

39.4 KB Created: 2020-08-13 07:01:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e32817eeb36551f871709221eb300f0 SHA-1: d2b078b48d44f042db98d78410432ee3c4cf9906 SHA-256: 9b34fca23aee7db2f9b9bfaf11cf0e9b791210c9a0fbb3248c0ec914db843162
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one pointing to a known malicious redirector at 'ttraff.com'. This suggests a phishing or scam attempt, likely to lead the user to malicious content. The document body, though heavily obfuscated, contains the same URLs, reinforcing the malicious intent. 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.com/wb?keyword=avoiding%20degenerative%20disease%20pdf In PDF document text
    • http://poxanusew.samanthianixon.com/uploads/1/3/1/6/131637254/2875053.pdfIn PDF document text
    • http://fapak.gabrieliqbal.com/uploads/1/3/1/8/131855997/3108598.pdfIn PDF document text
    • http://bekatijuw.burrnationk9s.com/uploads/1/3/0/9/130969054/6121066.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/1/0437/2535/7206/files/lerijatofevat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7899/1520/files/vutireber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/jimufiliwez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/70334712398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/484630536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4002/6273/files/simple_present_tense_simple_past_tense_present_continuous_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5294/7863/files/rekepasobaweviruripal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/demeluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3776/1437/files/linked_list_cycle_ii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/microsoft_office_2016_download_link.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 2

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_off00005d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D89 5228 bytes
SHA-256: df7c393af80cc19eb37b055dbbbd25849f84df56dd2c61041b0d9c096e28e7ed
font_01_sfnt_off00006f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F66 9796 bytes
SHA-256: 7093bac74c65511ade427435a1d685713c799dc49a14a20a8c7d7028b59c81cd

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