Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dc62f6afadadd48…

MALICIOUS

PDF

41.1 KB Created: 2020-08-03 06:51:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6aaac14e29aee4360345103e8f409216 SHA-1: 3e5bcd5479c7f70ca48332edcbd8599cb69a29d7 SHA-256: 5dc62f6afadadd487d328e18f4b84f9af0807ebd06901bcd56094110cb845ac1
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains the URL "https://ttraff.cc/pify?keyword=cub+cadet+lt1045+parts", which is flagged as a malicious redirector. The presence of a large number of external PDF links suggests a link farm or phishing attempt designed to distribute malware or lead users to malicious sites.

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=cub+cadet+lt1045+parts In PDF document text
    • http://files.shirehistory.org/uploads/1/3/1/4/131437041/1e6cbc3e986abf1.pdfIn PDF document text
    • http://files.acam-ceo.org/uploads/1/3/1/0/131069899/67e59e5e37.pdfIn PDF document text
    • http://files.chattanoogaaudubon.org/uploads/1/3/0/7/130740551/776a14316461.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/1/0430/2913/5514/files/tiladagapile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/xunowikukufezogonipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1538/9855/files/botijefivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8944/3483/files/kazosolal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/43016097414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/tisaxuregibitumewafolezaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2110/5309/files/fikovideloxomevate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/kuditoresawodekulupelotob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8787/2671/files/stony_brook_textbooks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56966684837.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
🗂 Part of campaign: chattanoogaaudubon.org 3 samples

Related samples 5

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_off00005a55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A55 5516 bytes
SHA-256: 61515451d0fd82cb6320683690b45d65dabce7b7be0674b916c15bbdb4cf0a00
font_01_sfnt_off00006d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D20 13284 bytes
SHA-256: 404ae7610b698b7472a0b73aab1c6c378f89fbc73989078b91ff75fee4be1549

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