Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae341ff06c6a80f…

MALICIOUS

PDF

65.4 KB Created: 2021-02-26 00:16:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 368e447a65b0b2c316b52a720d598d3b SHA-1: 5afe89c6c2417e3b5071492650a0bb09c249b66a SHA-256: 5ae341ff06c6a80fc797db20d81cd53ebf85485803ab7ef713108a612978b9e4
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains references to printer models and wkhtmltopdf, potentially as a pretext to disguise malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8377

Heuristics 4

  • 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
  • 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://jottigo.ru/award?keyword=how+do+you+connect+to+my+hp+officejet+pro+8610 PDF link annotation
    • https://cdn.sqhk.co/nivabetaz/VjbKQUT/14712344665.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473419/normal_5fdeee6bf19bd.pdfIn PDF document text
    • https://cdn.sqhk.co/xevuvuxene/jahgeie/48831709579.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407784/normal_6007e1f66987b.pdfIn PDF document text
    • http://mojadejazisapa.sportsontheweb.net/jotul_f_600_review.pdfIn PDF document text
    • https://juzowesefuzifi.weebly.com/uploads/1/3/0/7/130775985/5528dd098df3e.pdfIn PDF document text
    • http://bizelejumavasi.iblogger.org/21895183364.pdfIn PDF document text
    • https://xudepafuvinuk.weebly.com/uploads/1/3/0/9/130969511/kameninuxeb.pdfIn PDF document text
    • https://jexisaguratoka.weebly.com/uploads/1/3/1/4/131409442/vepogibixidopejudit.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464077/normal_5fdd9ef4000e9.pdfIn PDF document text
    • https://fodonisegijiwos.weebly.com/uploads/1/3/1/4/131437376/1372168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bigazixipiw.rf.gd/93553890477.pdfIn PDF document text
    • http://venavabumekaj.epizy.com/tarivugir.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/pit_bikes_for_sale_cheap_110cc.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/77265158941.pdfIn PDF document text
    • http://redusaboj.epizy.com/66226443043.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCB 5748 bytes
SHA-256: 87bc7d74878d0841e8e303ab9243f99d89180957fbb629e917e0a41b35c8f9dc