Malicious PDF — malware analysis report

Static analysis result for SHA-256 4887d5378c02dcc6…

MALICIOUS

PDF

75.0 KB Created: 2021-03-28 10:23:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 24efdd09d8da49667404b6d57f1df119 SHA-1: cc66f13f6a94e8bd13c37ca8c96c6b951efac753 SHA-256: 4887d5378c02dcc60439af6b34c7a1ad98cb559f74e36c9479644a9f4409cf41
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 links, many pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/wix?keyword=ffxi+blue+mage+quest PDF link annotation
    • http://hhizmet.com/jatopunediziph0hzx.pdfIn PDF document text
    • https://boruwimuruliv.weebly.com/uploads/1/3/4/8/134875556/2c14ebaea204a9.pdfIn PDF document text
    • https://fisadurubimu.weebly.com/uploads/1/3/1/4/131409264/6955511.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491723/normal_5fff308648a3c.pdfIn PDF document text
    • https://metozalolak.weebly.com/uploads/1/3/4/6/134610510/c0593552ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453329/normal_60445ce43be41.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478923/normal_6009a0604c651.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416923/normal_5fdd371395c31.pdfIn PDF document text
    • http://stalekost.site/jozanuzavq64e.pdfIn PDF document text
    • http://wegansit.space/huskee_riding_mower_tractor_supplycvgl1.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/que_es_el_sistema_endocrino.pdfIn PDF document text
    • https://gegizadewer.weebly.com/uploads/1/3/1/4/131482997/28ea34e84b4e801.pdfIn PDF document text
    • http://voicebftyi.com/judivakaweroketukejammkiy.pdfIn PDF document text
    • http://oneitstore.info/homo_sacerric5m.pdfIn PDF document text
    • http://mscredit.info/764414657716ijju.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/39029659227.pdfIn PDF document text
    • http://prostotit.site/dirigijufupudikunb68r7.pdfIn PDF document text
    • https://dusonomikeka.weebly.com/uploads/1/3/2/6/132695238/sekafuxi_voxelu.pdfIn PDF document text
    • http://olipaka.xyz/dark_disciple_hardcoverpywcx.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.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

Related samples 8

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_off0000e745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE745 5280 bytes
SHA-256: 5a19597cbc38a2a4b8ebb66fcdc468546caee585638bc2b9d50185c4f59f8ac3
font_01_sfnt_off0000f935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF935 11460 bytes
SHA-256: 11d05bc918fd367ca7c721ca47e232e3b08661e29611e997eec0678ec4a4d749

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