Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ce351bc6eb851e…

MALICIOUS

PDF

78.2 KB Created: 2021-03-28 05:41:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: eff8a9fad58ecb932b0fe0ce0d04b167 SHA-1: 249b17b656d708028f59d02448d0b07bac39893f SHA-256: c7ce351bc6eb851eb0547188e0ec52e7e7e63e6bbc0210b3e8e2bf789d97337a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or redirection scheme. The document body, though heavily obfuscated, appears to be a lure related to puppy sales, likely to trick users into clicking the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://bologen.ru/wix?keyword=teacup+french+bulldog+puppies+for+sale+in+colorado PDF link annotation
    • http://reduslim-italiaoficial.site/ca_final_costing_new_syllabus_notesykrg2.pdfIn PDF document text
    • http://xamawodub.22web.org/81888430552.pdfIn PDF document text
    • http://lonedowubolile.iblogger.org/davowoxukemizat.pdfIn PDF document text
    • https://puruvafapazono.weebly.com/uploads/1/3/0/8/130815059/keroz.pdfIn PDF document text
    • http://euromarket.pro/game_resident_evil_2_mod_apktqmfa.pdfIn PDF document text
    • http://rakijizesegag.22web.org/vuridodijim.pdfIn PDF document text
    • https://muwegejise.weebly.com/uploads/1/3/4/2/134265646/ridagulavomava.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/raluj.pdfIn PDF document text
    • https://tuzisufuga.weebly.com/uploads/1/3/4/4/134458332/mipetugozefena.pdfIn PDF document text
    • https://zokibiruxe.weebly.com/uploads/1/3/5/3/135326092/1846921.pdfIn PDF document text
    • http://braco.ru/audio_technica_at-_lp60usb_manuallwr3g.pdfIn PDF document text
    • http://nupufuzomofima.22web.org/meaning_of_biogeography.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369313/normal_604955c4cfa25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446394/normal_5fec6b25e4b47.pdfIn PDF document text
    • http://parkingtest.xyz/tipijomisizot8bk1z.pdfIn PDF document text
    • https://wufewevaso.weebly.com/uploads/1/3/1/4/131453291/5989504.pdfIn PDF document text
    • https://gakulenem.weebly.com/uploads/1/3/1/4/131437742/8333947.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://toramowajo.epizy.com/81691616137.pdfIn PDF document text
    • http://kejipokope.rf.gd/glandula_de_bartolino_funcion.pdfIn PDF document text
    • http://lisokabosexipep.epizy.com/nisupes.pdfIn PDF document text
    • http://latilofu.rf.gd/molarity_and_dilution_practice_worksheet_answer_key.pdfIn PDF document text
    • http://nupadamemal.epizy.com/sugigifujov.pdfIn PDF document text
    • http://tapejufujol.epizy.com/39086737585.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF417 5504 bytes
SHA-256: 638f964660f7c4dff50f50a119ee27cb7741a6628d4b005c343981a03d1e5888
font_01_sfnt_off000106c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C2 10496 bytes
SHA-256: eb353fce85db252df41bc71e411633b0d60f00b7304b3bda25d3429c0d3b5185

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