Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfee24e5884b42aa…

MALICIOUS

PDF

37.4 KB Created: 2020-09-16 11:34:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b75ca7609ba5d3483222bf497ca2785 SHA-1: 6063b04672c2fdef6f6ccd704c41bd9c58be71bc SHA-256: cfee24e5884b42aa0009428227c1ed1bd82a59774d36758f322ca6851c180ef4
184 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'icicle christmas lights led' and includes URLs that appear to be part of a link farm designed to attract traffic. The primary goal seems to be directing users to potentially malicious or unwanted content through a deceptive link farm.

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/pify?keyword=icicle+christmas+lights+led In PDF document text
    • http://pasozo.minjinkim.com/uploads/1/3/0/7/130738765/5346660.pdfIn PDF document text
    • http://files.roejendradesigns.com/uploads/1/3/1/4/131406762/wugagumigejo.pdfIn PDF document text
    • http://files.ceceliacornelissens.com/uploads/1/3/2/7/132741334/kemutetorep.pdfIn PDF document text
    • http://defor.gpvaniermusic.com/uploads/1/3/0/7/130738623/rovefatawisumoj_metama_poxumiluxave.pdfIn PDF document text
    • http://files.hoosierrentalgroup.com/uploads/1/3/1/4/131407918/05587dffc58.pdfIn PDF document text
    • http://files.melissahamiltonphotography.com/uploads/1/3/2/7/132712324/rupular.pdfIn PDF document text
    • http://mogum.christianchurchinpennsylvania.com/uploads/1/3/0/9/130968976/wexurumalas.pdfIn PDF document text
    • http://mobewujog.childrensartstudio.biz/uploads/1/3/0/7/130739353/pasugaguzojelaj.pdfIn PDF document text
    • http://jumored.rosecitytrinityumc.org/uploads/1/3/0/8/130814933/jujalev.pdfIn PDF document text
    • http://mawuni.f-growth.com/uploads/1/3/1/3/131383314/5300aceb8.pdfIn PDF document text
    • http://files.rcdavis-tellinstories.com/uploads/1/3/1/3/131383624/ebc2656e5828c5.pdfIn PDF document text
    • http://kelusol.reachyourmentor.com/uploads/1/3/1/4/131454165/sunoxagajuzara-miwarenidimef-dedeve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/9aab09_0f8e9ccd31204b8e8ab4b2a140de5af4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/234f58_b1225b82a6c84a1aa6627f5dc665cec7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/35c6e2_75300f829046493dab860d88820b896b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/40b9e6_c99184d0abeb477e89611c4aff039954.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/de65f7_0103644fa0c74d89ad995a118a39dbbd.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 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_off00005493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5493 5288 bytes
SHA-256: f90c8b037ed1559716b30c893a8d40c7619e56992c1683ef896a397d43eb1d50
font_01_sfnt_off0000665c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665C 10100 bytes
SHA-256: 0f94692f8ff8f5fbaa813556edada42acc92d2cc5d601fb0aaaa55b448641766

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