Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6e3706723566ca…

MALICIOUS

PDF

33.8 KB Created: 2020-09-16 14:23:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc5d805e37c3cb9474be0ab4c1c2b914 SHA-1: cca339a2fe36bf259e21db4cdd87158a7b62e787 SHA-256: 6f6e3706723566ca8a5121055a0fe0e671547dd285d9be91856d3f708db6a5f5
184 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to external PDF files hosted on disposable domains, indicating a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the nature of the link farm suggest an attempt to distribute malicious content or redirect 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.
  • 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.link/wix?keyword=rogue+warfare+2020+trailer In PDF document text
    • http://gexabinov.pre-protein.com/uploads/1/3/0/9/130969761/120f35.pdfIn PDF document text
    • http://zexotariv.lornathomasphotography.com/uploads/1/3/2/6/132695543/fawijegalopofodedib.pdfIn PDF document text
    • http://gejirote.innerpiecepeace.com/uploads/1/3/0/8/130874210/nemagogizat.pdfIn PDF document text
    • http://files.countrysideimplements.com/uploads/1/3/0/7/130738823/fifiraxutu_bipixuz_gazef.pdfIn PDF document text
    • http://files.heads-high.com/uploads/1/3/2/6/132681322/dopini.pdfIn PDF document text
    • http://files.nepalrvt.org/uploads/1/3/1/6/131606289/9a163d3.pdfIn PDF document text
    • http://files.papermagicbook.com/uploads/1/3/2/8/132814136/fedakegetefanel.pdfIn PDF document text
    • http://files.suzannejjames.com/uploads/1/3/1/0/131070711/1893969.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/1/0431/8517/6736/files/airline_luggage_tag_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9102/5306/files/36466050374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7421/6351/files/8511072307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/kobijolilaliwa.pdfIn PDF document text
    • https://054bb1ca-f808-11ea-a328-fc4dd43d38a6.filesusr.com/ugd/d775a9_bb362e18c25343068c6d1d54df956a04.pdf?index=trueIn PDF document text
    • https://ea27b9cb-0a47-47a9-bdb6-a1b9b9fbeebc.filesusr.com/ugd/5bb01c_3bb8bc6ec3724cbc811606252f67448a.pdf?index=trueIn PDF document text
    • https://6eae6c97-94fd-4ac0-8f67-4b45bc8e1c5f.filesusr.com/ugd/7be1cd_06f1a869af4843a381f29ad28f069014.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_off0000472c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x472C 5132 bytes
SHA-256: efa44844d703241c75eccd52c84c51ee0a8bffc2af2f6a37bfb4a313ef8dbc55
font_01_sfnt_off000058c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C7 9904 bytes
SHA-256: 15fcc4841353ac17a1bf400156ba65aef41e0cb8221447c5b71dac358d68a882

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