Malicious PDF — malware analysis report

Static analysis result for SHA-256 560353cf8cfdf541…

MALICIOUS

PDF

74.8 KB Created: 2021-03-21 11:08:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c29db12caba7f3bf870e9e8e57e24691 SHA-1: 15200d889236caa73d4965c7b9f48673ff89766d SHA-256: 560353cf8cfdf541f375a487b85e686121ef4e88220e22d5c31f97d1dfffacee
206 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to direct users to potentially malicious sites. The 'SE_ENABLE_LURE' heuristic indicates the document likely instructs users to enable content, a common tactic for malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://mezovuduw.ru/award?keyword=convert+pdf+into+word+file+free+online PDF link annotation
    • https://kevititexozasen.weebly.com/uploads/1/3/2/7/132712545/xemiroluxa-vojuji-tidasizuzu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401971/normal_5ff07b1caf0a6.pdfIn PDF document text
    • http://kdghy.online/dynamic_tension_charles_atlasn70wx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461525/normal_5fca39eb33f20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503390/normal_60413c5a6e428.pdfIn PDF document text
    • https://badobokitevobux.weebly.com/uploads/1/3/0/9/130969603/watinelosapu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470821/normal_6048424d9c403.pdfIn PDF document text
    • http://atomlinux.com/ifttt_alexa_skill21ycx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490725/normal_604854e70c25a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/da6e0b91-775b-4ab8-a7dc-1d1650ec8e8c/99903461600.pdfIn PDF document text
    • https://ef9d90ca-5811-4a1c-810e-75bcfae60121.filesusr.com/ugd/a33af7_c09f2cd0531b43cb8407cb1c7b7f9bd5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/74f38d42-f94b-4134-98cb-4545b97adc1d/7-3_practice_similar_triangles_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71617a5c-47bc-4f47-b846-47148962f943/18788256317.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d4fc5e3-bea5-4c6b-ad91-fc47460e5ae8/chicago_airport_fedex_drop_off.pdfIn PDF document text
    • https://7d7e9a41-1eea-4c72-a0b8-c0e3d642de37.filesusr.com/ugd/513cfa_32cee3e80b024e1f9cdeddc35d54cb41.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_off0000e8a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A6 4704 bytes
SHA-256: b16436f17128922ab6347838571dd7820cfe05745debe327daaf2d520b11138c
font_01_sfnt_off0000f8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8CD 10884 bytes
SHA-256: a35618f0a9c766d9e08c6161219276004af87493cc4efe8d9de0327f7c0f29ca

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