Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8c47433c2dcb225…

MALICIOUS

PDF

79.3 KB Created: 2021-04-12 02:31:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bcbc248a45345a3fde97ccfc858cf7fc SHA-1: 278d11d59d99a234604d0b82935e587408778b15 SHA-256: b8c47433c2dcb2257e11b6eacf2db034f40e14bd4d0efbfdbbdf09abe4d4fac7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document body contains a lure related to social media image searches, and multiple external URLs are embedded, suggesting an attempt to redirect the user to a malicious site. The presence of numerous disposable domains and link farms further supports a malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/strik?utm_term=how+to+find+who+posted+a+picture+on+facebook PDF link annotation
    • http://drnextact.xyz/jaxavapofapafojujafejs3vm.pdfIn PDF document text
    • http://idem-peshkom.ru/90746059094u9fzq.pdfIn PDF document text
    • http://wevibakudibu.iblogger.org/will_there_be_a_twilight_sequel.pdfIn PDF document text
    • http://fitness1.space/5978723254556ocv.pdfIn PDF document text
    • http://ryursew.space/94282106884eyza4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457312/normal_606536c83944d.pdfIn PDF document text
    • http://vujenixuwo.mypressonline.com/97708231824.pdfIn PDF document text
    • http://bilkaita.space/how_to_remote_samsung_tvxc01j.pdfIn PDF document text
    • http://criticcxck.space/beputilidapavi2pu2m.pdfIn PDF document text
    • http://zuxemesemubozo.mywebcommunity.org/dicte_6me_bescherelle.pdfIn PDF document text
    • http://profapp.pro/affidavit_of_marriage_samplesxl1c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382779/normal_5fcbe56b59818.pdfIn PDF document text
    • http://pshcomonhere.xyz/72882528430vq3bt.pdfIn PDF document text
    • http://chempion.coffee/a_writers_reference_9th_edition_google_booksthto8.pdfIn PDF document text
    • http://navaram.online/933268588388zey5.pdfIn PDF document text
    • http://itdomen.fun/14415575634n04qn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409122/normal_5ffbcfb47a3e1.pdfIn PDF document text
    • http://iranomics.com/harry_potter_book_set_price_philippiness9k83.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xiwinuxad.rf.gd/81344799305.pdfIn PDF document text
    • http://rofuvawitarul.atwebpages.com/68339976885.pdfIn PDF document text
    • http://lekibumapiwow.epizy.com/63437729762.pdfIn PDF document text
    • http://supinam.rf.gd/48280821849.pdfIn PDF document text
    • http://jobifizokugo.rf.gd/dasonifanolugejoko.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA49 5352 bytes
SHA-256: 067714480303feb1ff606694dc825f2e5b9720df3f74d29a35a0876ea4dcabf3
font_01_sfnt_off0000fc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC77 10872 bytes
SHA-256: d60829bd44e9aa25f76a223df61f5e9e51b969fcb39810a420ab5cef6b8d0170
font_02_sfnt_off00012166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12166 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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