Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea6f9eac303c0ec6…

MALICIOUS

PDF

74.7 KB Created: 2021-02-15 10:41:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7c7c50c8c11f97bca4c65b4503a1efb3 SHA-1: 2060af61d6f37d1bd28a71b01b550f0383e78810 SHA-256: ea6f9eac303c0ec60d9a2ec899f2d3562583669f1dbbb72fa4c2c15062e7c9ba
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are hosted on disposable domains or link farms, suggesting a malicious intent to redirect users to potentially harmful sites. The ML classifier and ClamAV detection strongly indicate maliciousness, with the PDF_SEO_LINK_FARM heuristic pointing to a large number of outbound links. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/strik?utm_term=basic+songwriting+tips PDF link annotation
    • https://cdn.sqhk.co/jekidase/lZfifUL/vilaz.pdfIn PDF document text
    • https://zuwumepegowivos.weebly.com/uploads/1/3/1/0/131069935/7162366.pdfIn PDF document text
    • https://tasoxagizuj.weebly.com/uploads/1/3/4/7/134734804/wasuneg.pdfIn PDF document text
    • https://bagibobujinokat.weebly.com/uploads/1/3/5/3/135312275/mudiruduwutim.pdfIn PDF document text
    • http://kemytbok.xyz/wixibonuwelixiob9u1.pdfIn PDF document text
    • https://topalezomezo.weebly.com/uploads/1/3/4/3/134305389/7343669.pdfIn PDF document text
    • http://oyuncuxx.com/ribezopovegobitafumoxoserdkv9.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.website/imagine_dragons_smoke_mirrors_limited_super_deluxe_editionka4wk.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/yBijlOK/chicken_breast_tapa_recipe.pdfIn PDF document text
    • https://zeduwekikozive.weebly.com/uploads/1/3/6/0/136050246/2673673.pdfIn PDF document text
    • https://cdn.sqhk.co/vizelupavew/ijtjfgh/memusutemewefababuvigig.pdfIn PDF document text
    • http://wide-take.top/mobenadamirivulanuman0x6sd.pdfIn PDF document text
    • https://boginajidu.weebly.com/uploads/1/3/4/6/134693166/2779823.pdfIn PDF document text
    • http://idealica-official-it.website/18371496754wzk84.pdfIn PDF document text
    • http://websporizlehd.com/bruner_discovery_learningq3r64.pdfIn PDF document text
    • https://vinetiwufo.weebly.com/uploads/1/3/5/3/135305890/netutewim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/akshara_singh_songs_free.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_off0000e5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FF 5208 bytes
SHA-256: a2a91a64dd09337ef66a8ddbbc5c70a5069564ac317cb70bad3ef00db063f541
font_01_sfnt_off0000f7de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DE 11264 bytes
SHA-256: ba1ea75a14fca12ab6da58cf87d1095028c70eb06152718267ba261cbe5b2d01

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