Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d074b6e07572ee9…

MALICIOUS

PDF

65.0 KB Created: 2021-06-13 03:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7825be59fb68193ae13b493102cb6922 SHA-1: a8842306581905216b8c853bad65380d7376d2ad SHA-256: 5d074b6e07572ee9b39c3032ac658c9c358f3030c744fe76f8841a351e7b22e6
186 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 pointing to disposable hosting services, indicative of a link farm. This is further supported by heuristics like PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via the linked content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://wobelafesuta.weebly.com/uploads/1/3/4/7/134767333/sufopubojogux.pdf In PDF document text
    • https://xuxulavadimuxa.weebly.com/uploads/1/3/4/2/134234789/demidagiju.pdfIn PDF document text
    • https://surexirubale.weebly.com/uploads/1/3/4/0/134000129/vilikikisug.pdfIn PDF document text
    • https://biwewonopegad.weebly.com/uploads/1/3/1/3/131380063/cb6053d323d29.pdfIn PDF document text
    • https://pozugawejebi.weebly.com/uploads/1/3/4/6/134610366/c87b3f3.pdfIn PDF document text
    • https://vebajixumese.weebly.com/uploads/1/3/4/4/134483039/9955908.pdfIn PDF document text
    • https://nizikalod.weebly.com/uploads/1/3/4/6/134605229/wesoxidowimewol-kapunupadupakaz-xujituv.pdfIn PDF document text
    • https://mufanujirube.weebly.com/uploads/1/3/5/3/135348440/tavivudufavivujuliso.pdfIn PDF document text
    • https://luradubesi.weebly.com/uploads/1/3/4/4/134486829/kaxuz.pdfIn PDF document text
    • https://pisolani.weebly.com/uploads/1/3/4/6/134668870/947d9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/sq/ugae/~3/iCUEKX862tE/square?utm_term=how+many+solar+eclipse+in+a+yearPDF link annotation
    • https://uploads.strikinglycdn.com/files/2c3464bf-a64a-497e-b628-2a4a1e843985/the_boy_in_striped_pajamas_summary_chapter_8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/192e1487-e612-48cd-b590-97ca467f675a/22852060227.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cee8d3d8-1aa7-42b0-a894-1581be23edf3/wadigerabepubiduveliwow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88e9439a-94d0-450e-bb19-adc42dafa8da/gejojileropivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/390a228a-180a-458f-8bf9-80b8bb13d756/pokemon_sun_and_moon_anime_cast_english.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c43d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC43D 5232 bytes
SHA-256: 9ff195b898cf7b574db5e1bb457af7939433c859058ed4161c92c021b7e64adc
font_01_sfnt_off0000d604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD604 9776 bytes
SHA-256: 7ffdd431cd13abcdccdef6749de879b30a69bba52087fb3ef9a148ef46b9c991

Open this report in the interactive analyzer, or submit your own file for analysis.