Malicious PDF — malware analysis report

Static analysis result for SHA-256 35396682c3a1f99c…

MALICIOUS

PDF

42.4 KB Created: 2020-09-16 20:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0730100885591e61338a80a128f57b4b SHA-1: df34f6740892f76a9023d132bcb14a94502e97c2 SHA-256: 35396682c3a1f99c6e40a51eb70484d5ce7f21e8ef76bfec4e7cb82493bb9ed1
184 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, a common tactic for SEO poisoning and distributing malicious content. One prominent link redirects to 'https://ttraff.club/wix?keyword=the+voyage+of+the+dawn+treader+pdf+indonesia', which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other PDF links, reinforcing the lure to click on external content. The ML classifier strongly supports the malicious nature of this PDF.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.club/wix?keyword=the+voyage+of+the+dawn+treader+pdf+indonesia In PDF document text
    • http://vezupagug.lacharite.net/uploads/1/3/0/7/130738971/4367823.pdfIn PDF document text
    • http://nasizaxas.nationaltire.ca/uploads/1/3/1/6/131636725/furufebifi.pdfIn PDF document text
    • http://files.imagezphotostudio.com/uploads/1/3/1/6/131606343/5510617.pdfIn PDF document text
    • http://files.northhaledontreeexperts.com/uploads/1/3/1/3/131380875/3091327.pdfIn PDF document text
    • http://pevazibin.lcandlepress.com/uploads/1/3/0/7/130776082/deserivum-vajikijirixa.pdfIn PDF document text
    • http://files.fcccamp.org/uploads/1/3/1/8/131857315/694c181.pdfIn PDF document text
    • http://dajasuda.mywhwc.com/uploads/1/3/0/8/130814328/kerizebi.pdfIn PDF document text
    • http://files.ndwc.org/uploads/1/3/1/6/131637257/ludif-jodevirafurojus.pdfIn PDF document text
    • http://nekivifo.momentsinthepark.com/uploads/1/3/1/1/131164250/7bfb6a24.pdfIn PDF document text
    • http://repem.vermatesa.com/uploads/1/3/0/7/130776394/pebut.pdfIn PDF document text
    • http://files.newhavenpanhel.org/uploads/1/3/0/7/130775743/1817862.pdfIn PDF document text
    • http://molofa.rusneftegaz.com/uploads/1/3/1/4/131406062/dimefas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5b995630-2543-470d-ba29-b49bd3af90eb.filesusr.com/ugd/6cf0f5_e241c3ff9aeb47d0a4316737b1ad45d3.pdf?index=trueIn PDF document text
    • https://d4d2d788-2bb8-4adc-b797-a765432fc837.filesusr.com/ugd/4e977a_b6a1ecbbea684da19d1999b2ba7708eb.pdf?index=trueIn PDF document text
    • https://27fb9af2-c096-4cb5-8c18-e419e37f1697.filesusr.com/ugd/c70c35_bc591c3a85af4bc99da29b6b11dc1dcb.pdf?index=trueIn PDF document text
    • https://9dff63fa-74f7-48ca-9d8e-dd205d2bde43.filesusr.com/ugd/e3325f_6f44b044f0e14d5ea0808394a303d494.pdf?index=trueIn 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 8

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_off000066b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B8 5472 bytes
SHA-256: ec7a1fac7fe5c9cd73077c4df9e06f79d20545afb775a6002ff1cb5e7332469c
font_01_sfnt_off00007972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7972 10192 bytes
SHA-256: 51b9d83aa9a22f7ce3e4621b724e8f66b1bf68af444a0a1ff5086075c55f8041

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