Malicious PDF — malware analysis report

Static analysis result for SHA-256 5726449db5b592ce…

MALICIOUS

PDF

40.0 KB Created: 2020-08-19 06:22:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fdfc7f1af61eb8debc9bd78ee1a228e SHA-1: 231264fc8daa8d9ba602003fa0b6fceddb0a8c2e SHA-256: 5726449db5b592ced81a3cec5e28baeedd4bb07006890303eeb59d665f17c0b9
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link to 'https://ttraff.com/pify?keyword=eaton+cad+files'. The document body is heavily obfuscated and contains embedded URLs, suggesting it is designed to redirect users to malicious sites. 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/pify?keyword=eaton+cad+files In PDF document text
    • http://files.heritageheroesptsa.org/uploads/1/3/1/4/131437017/42899e8c27c5f.pdfIn PDF document text
    • http://files.productionsbysheyla.com/uploads/1/3/0/8/130813427/fisegisaxu.pdfIn PDF document text
    • http://files.somafirewellness.com/uploads/1/3/1/4/131438211/79f15981d2.pdfIn PDF document text
    • http://pefurefo.pianofarm.com/uploads/1/3/1/4/131408899/8064623.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/1/0430/9689/9733/files/kinikunesutenifokumexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/let_reviewers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9587/3949/files/bhrashtachar_essay_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2885/6477/files/24528145956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bivunamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/burglar_alarm_circuit_using_scr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8171/8165/files/catequesis_para_nios_juegos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1863/9765/files/67385259936.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_off00005833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5833 4876 bytes
SHA-256: 2928ac12aff83a710959d848befbe9364f0d400f90056743ef268cd0724aaf84
font_01_sfnt_off000068db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DB 13596 bytes
SHA-256: a2ffb7b56bce45fb3f257f09ea41755dc3a48676c50402041fd9cc50fbe91bc6

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