Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ba7540304c9a09c…

MALICIOUS

PDF

72.6 KB Created: 2021-03-01 20:55:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e3996037c4b53e2c2fb005d325b0d763 SHA-1: 081fc27917ebe928aa9b7d1eb8437aa760a15898 SHA-256: 4ba7540304c9a09c437f97f7f1b1d5cfd1381b1d84b04061159a5c7a5c380b7c
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically identified as a link farm on disposable hosting, suggesting a malicious intent to redirect users. The ML classifier and ClamAV detection strongly indicate malicious content. The presence of a 'Password-protected archive lure' heuristic further suggests that this document is designed to trick users into downloading or opening a password-protected file, which often contains malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://fokemale.ru/strik?utm_term=bob+revolution+flex+vs+pro+vs+se PDF link annotation
    • https://cdn.sqhk.co/gawagunikuw/ibKjbhi/vimeliwiket.pdfIn PDF document text
    • https://cdn.sqhk.co/xodawakadude/ZLhcchh/dhoom_3_star_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/hjMwzTv/79112772932.pdfIn PDF document text
    • http://xsale.trade/gajefibexidufo9x8pl.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/RZFShhX/rupimoru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451018/normal_5ff5e8c685880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_5fd978e87914a.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluwumenad/bEifjgd/kavekasozulasegoruv.pdfIn PDF document text
    • https://cdn.sqhk.co/posogamumut/cIgchew/oneplus_switch_restore_not_working.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kesobiw.rf.gd/mike_meyers_comptia_a_book.pdfIn PDF document text
    • http://rowagaparik.rf.gd/lezikuwi.pdfIn PDF document text
    • http://tasetexogop.epizy.com/ketorozuvipugoguremufin.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/avast_battery_saver_apk_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/knockout_js_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/8694594060.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/sokonakerikapawizor.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_off0000dfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE6 5004 bytes
SHA-256: 64c2229b8522ffc300ca56c0baae8a351762308b3659d0d4cae44a868d681c47
font_01_sfnt_off0000f104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF104 10680 bytes
SHA-256: 4a1b897b59dfae41a52041b65a2c53b815a0572b91d47463abf57cfe8982cdec

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