Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d5cdd091801aef1…

MALICIOUS

PDF

79.9 KB Created: 2021-03-29 13:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ba1c919e2ce34bd825893bc128c25543 SHA-1: d5134c899b71993672eb92fdf55c37353948dd6a SHA-256: 4d5cdd091801aef1666d3fc19209a9ebd35633902966348312460a3fe11ec55f
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically flagged as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://maypoin.ru/wix?keyword=courage+the+joy+of+living+dangerously+pdf PDF link annotation
    • http://lekujajivuvire.iblogger.org/kajuxisegafaziloruwu.pdfIn PDF document text
    • http://goodxday.xyz/panasonic_phone_number_customer_servicefd658.pdfIn PDF document text
    • http://lnstagram-verificationbadgeform.com/feleniraxmkj.pdfIn PDF document text
    • http://xamawigokoke.mygamesonline.org/how_do_i_connect_my_hp_deskjet_2620_printer_to_wifi.pdfIn PDF document text
    • http://modezewop.mygamesonline.org/yamaha_tdr_125_service_manual.pdfIn PDF document text
    • http://zumbayuliya.online/dash_diet_eating_planu3b14.pdfIn PDF document text
    • http://zdsshop.top/56921801811dqsk6.pdfIn PDF document text
    • http://filuniguwol.22web.org/29203151719.pdfIn PDF document text
    • http://jomikifu.medianewsonline.com/wufid.pdfIn PDF document text
    • http://knitfqph.site/tositoselopazapadajezomocm592.pdfIn PDF document text
    • http://wegoluxetas.scienceontheweb.net/67428978730.pdfIn PDF document text
    • http://momarivido.mypressonline.com/what_to_know_about_marketing_management.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://refowinevog.rf.gd/77059518737.pdfIn PDF document text
    • https://368051e9-4199-40ea-b9a2-dc6e6f83cb3b.filesusr.com/ugd/6260fe_9940fee580b944bcb14b513c9253397c.pdf?index=trueIn PDF document text
    • http://genuxemesusirif.rf.gd/lexus_sc300_transmission_fluid_type.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7531091-f863-492b-9c9d-3a9d71ebc5d4/xumifowor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07c9dd56-c012-4335-b111-38692785502a/94249860636.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c75ccab7-9a9d-4330-ab32-29bf6409cca9/71709677128.pdfIn PDF document text
    • https://b00f38ea-0d13-4519-ab0f-1253f0d03ca0.filesusr.com/ugd/289c5e_6871b6f346264d13a03a6616ed70955f.pdf?index=trueIn PDF document text
    • http://bupuboteba.epizy.com/94304016119.pdfIn PDF document text
    • http://mobosefevexaxep.rf.gd/why_is_my_electric_oven_not_heating_up_properly.pdfIn PDF document text
    • http://ravizovagusemav.epizy.com/abceso_hepatico.pdfIn PDF document text
    • http://vogopulototav.epizy.com/zedaxiperatedu.pdfIn PDF document text
    • http://danijikuguwidak.rf.gd/metal_texture_psd.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 5

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_off0000f55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55C 5444 bytes
SHA-256: 2389baac95aa50784515772bc82a6092dbf955a45477230658af88aa1eab1efc
font_01_sfnt_off000107f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F6 15108 bytes
SHA-256: 908f8b9cde5425dac721830cb690871bf74e1accc8808fe6e09ad0601d210eca

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