Malicious PDF — malware analysis report

Static analysis result for SHA-256 301dda6ef2df49e7…

MALICIOUS

PDF

76.6 KB Created: 2021-03-02 15:21:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b65341d9eaeb746e392cec045cdf8620 SHA-1: 96a7ff2e1fcaf3f38a826e802ac49d27d8d8c87b SHA-256: 301dda6ef2df49e714ed380b8db94a783156da91758e05816088d0b826fc0297
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and numerous external URLs point towards a phishing or malware distribution scheme, likely leveraging embedded JavaScript to facilitate redirection.

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://vilenefex.ru/strik?utm_term=a+murder+is+announced+movie PDF link annotation
    • http://ooovseanalizi.ru/88591077821a25sr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446765/normal_5fe3323ba6302.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402294/normal_5fdae3256b293.pdfIn PDF document text
    • https://jibajupo.weebly.com/uploads/1/3/1/6/131636806/zeverozunemewu_nodukamubimas.pdfIn PDF document text
    • http://gk-kuban.ru/39939138186mb1sx.pdfIn PDF document text
    • https://xagapetudiza.weebly.com/uploads/1/3/4/6/134686513/jovixipidu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402280/normal_600342855b1d6.pdfIn PDF document text
    • http://tramlaweq.online/five_nights_in_anime_2_download_androidqben6.pdfIn PDF document text
    • https://jinijazi.weebly.com/uploads/1/3/4/6/134668286/rupezadekijaj_tekawovedarowus.pdfIn PDF document text
    • https://nikigetevakawu.weebly.com/uploads/1/3/1/4/131413362/6db02bad.pdfIn PDF document text
    • http://shopsmmv.site/how_to_find_guided_access_on_ipad3u8jo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405674/normal_5fcaceb7e6b5d.pdfIn PDF document text
    • http://affilateapp.online/53229652151gviap.pdfIn PDF document text
    • https://lizoduloto.weebly.com/uploads/1/3/4/7/134701777/1121176.pdfIn PDF document text
    • http://formulamoney.top/jukufarolaxoffawxi.pdfIn PDF document text
    • https://wazufepema.weebly.com/uploads/1/3/5/3/135383665/mikefatuvisomuturus.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/4410933.pdfIn PDF document text
    • http://maykistore.ru/sifovagelufudelavomugiwiw40o8x.pdfIn PDF document text
    • http://hookup153.space/bfit_sport_apppbefv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AB 5100 bytes
SHA-256: 6176770c603ada8b048272c4f764db95dc579cb28f185463aa034600878664c1
font_01_sfnt_off000101eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101EB 10276 bytes
SHA-256: cb156e6ed52f6985aec016fe46f2406a4f47ce1ad946e39b689e5f5e9e5225b9

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