Malicious PDF — malware analysis report

Static analysis result for SHA-256 df0ca47958e95091…

MALICIOUS

PDF

40.0 KB Created: 2020-08-25 11:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f96371549327a1688c410f55270200e SHA-1: 80d54217cef2780f34cb500ba7334a2b150632e0 SHA-256: df0ca47958e950916894b544bd43eccd3bb017004e3e24555e53e244872354e6
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm and a malicious redirector. The primary malicious link identified is https://ttraff.com/pify?keyword=guardrail+design+guidelines, which likely serves as a gateway to a malicious payload. The document body itself is heavily obfuscated and contains numerous other PDF links, suggesting a content-spinning or link-farming operation designed to distribute malicious content.

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/pify?keyword=guardrail+design+guidelines In PDF document text
    • http://gidaruxi.dmlcommunications.com/uploads/1/3/1/6/131637814/jamiw.pdfIn PDF document text
    • http://files.hometveverywhere.com/uploads/1/3/1/8/131871633/xisuxuwuduwur.pdfIn PDF document text
    • http://files.channelingnonna.com/uploads/1/3/2/3/132303071/69f2a5c.pdfIn PDF document text
    • http://bupaj.helenhassinger.com/uploads/1/3/1/4/131437361/ruradewuka_wonab_kigelezoraxita_potugoxiw.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/1/0428/4655/2230/files/96763060438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4256/9382/files/tenibunesadonuxifatiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0732/6882/files/candy_crush_saga_hack_cheat_engine_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7792/6040/files/free_acls_quick_review_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/bujijegapuvogapiweraxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8017/9100/files/formal_wedding_invitation_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6140/files/online_editor_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/paligalaruf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8576/6561/files/82211501032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/nipazadexofamubepoviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9523/6513/files/a_to_z_dictionary_words_with_meaning_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5755/2277/files/88624900594.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 1

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_off0000618b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618B 5024 bytes
SHA-256: 3c728c217f5940434b6e7ccdd3f3b456e15f0c26f9617850267512a75a1141b1
font_01_sfnt_off000072aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AA 9568 bytes
SHA-256: d41b1823113592941d4433368fd7a88d796f9ba727935ad0cd113c4461799e0e

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