Malicious PDF — malware analysis report

Static analysis result for SHA-256 76db4f04d13dd7b4…

MALICIOUS

PDF

86.5 KB Created: 2021-03-14 17:00:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 71292e253e55a218e11d9ec71f9df79d SHA-1: 9c9ea45bdbf2813e303ae85b2270ea893dab8736 SHA-256: 76db4f04d13dd7b4ba1cf900822aac45a6d930351498085da12d637d1e8c70db
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://resalured.ru/123?utm_term=photoshop+watercolor+effect+brushes+free PDF link annotation
    • http://rofogukiluvupu.mygamesonline.org/is_the_purple_scapular_approved_by_the_catholic_church.pdfIn PDF document text
    • http://goossyy.online/film_korea_frozen_flower_sub_indol6fzc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487905/normal_6044dcb8aee55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481513/normal_603977421086d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384825/normal_5feb229b5384a.pdfIn PDF document text
    • http://namedaun.fun/financial_report_analysis_ratios3xuds.pdfIn PDF document text
    • http://cparta.moscow/98998887754zix74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451229/normal_60351c7cc6684.pdfIn PDF document text
    • http://zozamowewideno.mypressonline.com/calligraphy_cursive_letters_for_beginners.pdfIn PDF document text
    • http://dommasters.site/poxesef5055q.pdfIn PDF document text
    • http://koxelovanalimu.getenjoyment.net/mitovitobino.pdfIn PDF document text
    • http://jedusajinud.mygamesonline.org/baixar_catalogo_hinode_ciclo_4_2020.pdfIn PDF document text
    • http://instapriz.online/pasuftxzxo.pdfIn PDF document text
    • http://fonivoguko.medianewsonline.com/wuguzadebeme.pdfIn PDF document text
    • http://uptodate.site/fonuwireriziloxewipowopide4.pdfIn PDF document text
    • http://matcobzor.ru/short_story_for_college_studentsuyodu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8547ccf5-0bd0-4f2f-ae90-73a297e1d0d4/wovagizasalamikipu.pdfIn PDF document text
    • http://kutoxinupuroxo.onlinewebshop.net/arithmetico_geometric_progression.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8429c3b6-9246-4a4e-9ca6-0c9fba82f257/biblia_de_jerusalen_en_linea_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a69ffe5-fab2-4f0f-a950-8bc14941ca08/gunotanuzolofe.pdfIn PDF document text
    • http://fufudaloxola.onlinewebshop.net/the_art_of_living_well_and_finding_happiness_taurus.pdfIn PDF document text
    • http://sulorowanutabu.atwebpages.com/numimok.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_off000115b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115B9 5336 bytes
SHA-256: d1e0a9c3260a073b120a8ed1d7de3e48602657b46f142859d9dc8e41fb34c403
font_01_sfnt_off000127e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127E6 10600 bytes
SHA-256: 4a7d1460d85e2b9c46d6c92eaac9e0609e55040e05acd3224209ee9f6e95426d

Open this report in the interactive analyzer, or submit your own file for analysis.