Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd0215a5545836cc…

MALICIOUS

PDF

63.7 KB Created: 2021-02-26 23:19:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: be32e8901db1930b59263919aa49a156 SHA-1: 4f47c855303f5549c2730a19e9ac5194bf1de12b SHA-256: dd0215a5545836cc42cd9c48982c5858386bd6669833cba8f9371e48955d6c08
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document contains numerous embedded URLs, many of which point to disposable domains and are likely part of a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://ponafet.ru/123?utm_term=is+nordictrack+worth+the+money PDF link annotation
    • http://urro-hu.com/how_do_i_connect_my_mini_projector_to_my_phonei8j4o.pdfIn PDF document text
    • http://lazirog.mywebcommunity.org/under_the_dome_season_3_episode_2_tamil_dubbed.pdfIn PDF document text
    • http://giveaway2020.info/blocked_phone_numbers_on_my_iphone5nniv.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/colt_ar_15_9mm_lower_for_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366957/normal_601e95806f2c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455198/normal_5fea188d9765f.pdfIn PDF document text
    • https://cdn.sqhk.co/jebavimot/fgi1V3m/off_road_car_gta_5.pdfIn PDF document text
    • http://esmoney.site/is_sao_alicization_a_prequelo0f88.pdfIn PDF document text
    • https://cdn.sqhk.co/lovolipeg/ehfhcge/dasapojana.pdfIn PDF document text
    • https://cdn.sqhk.co/zifuvifiweva/t3ichjr/jump_ball_blast_online.pdfIn PDF document text
    • http://sun-italy.space/synthesia_crack_key6gdma.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://doriponesarom.myartsonline.com/charting_oxidation_number_worksheet_answers.pdfIn PDF document text
    • http://fiforeru.atwebpages.com/mixefamirimaxepedene.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 6

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_off0000bf54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF54 5344 bytes
SHA-256: 241ed14f7d8950678501f5392eb1844c045fcd743652db603815917e2cc8858a
font_01_sfnt_off0000d16c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16C 9612 bytes
SHA-256: 891b14cb883c81655d8e064089ee080bcc8b7ddc767b9f4f9af94795daf186ce

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