Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e98b004c77c211d…

MALICIOUS

PDF

40.0 KB Created: 2020-08-08 03:17:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9b708b196dbc36b80df4e6eff35ce61 SHA-1: 0ed5cd93e58051be461adb9a9542b01da24060aa SHA-256: 1e98b004c77c211dca79e3d007018ee3a5b54f3eb5eea188e3c1ce15cd79b211
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a solar power system installation guide. This redirector likely leads to further malicious content or exploits. The document body itself is heavily obfuscated but contains the malicious URL and numerous other URLs pointing to PDF files, suggesting a link farm or SEO poisoning tactic to attract victims. The ML classifier also strongly indicated maliciousness.

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/wb?keyword=solar%20power%20system%20installation%20pdf In PDF document text
    • http://files.mhfaraj.net/uploads/1/3/1/4/131408204/zokup.pdfIn PDF document text
    • http://files.mnvetsoutdoors.org/uploads/1/3/0/8/130874201/febinatotuseruzisaf.pdfIn PDF document text
    • http://files.cavysa.org/uploads/1/3/1/0/131071240/guzekelok-kiluwonuxapu-zutezedajajedep.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/1/0433/0687/7080/files/lavijado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/pofazorulitusiwujiwiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2590/8383/files/67248469917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3499/2025/files/apache_hadoop_ecosystem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/goxebete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6851/3695/files/42106432682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/zanupuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/giloxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6895/4526/files/59171490050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/speer_reloading_data.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 7

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_off00005e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E72 5484 bytes
SHA-256: 5c6f3f7ddfeb0744ea769094ad2d2087005856730dd44ed8398b7b7bf4b6af3d
font_01_sfnt_off00007117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7117 10040 bytes
SHA-256: e2988926258611d1f59c804b7ce42c21496b9653be40c936645e2f08a3e58b44

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