Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30d330e64bd7fd3…

MALICIOUS

PDF

78.2 KB Created: 2021-03-10 22:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4d0ac3b76138d86906d794e917645020 SHA-1: 8c149f3a49360a491e6a19b0e283a2be6aec87f2 SHA-256: d30d330e64bd7fd370def66d1b913d9ad36f8e28b789445e376ae777923a124b
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 0.9991

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://kuzutuzo.ru/123?utm_term=epson+stylus+cx5000+printer+driver PDF link annotation
    • http://rupazaduxil.mywebcommunity.org/41901130949.pdfIn PDF document text
    • http://cuzinfo.ru/hetman_file_repair_1.1_crack_downloagwad2.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/the_hacker_playbook_3.pdfIn PDF document text
    • http://shoppingyxplus.xyz/photoshop_cs2_training_videos_free_download0ebif.pdfIn PDF document text
    • http://ptmonline.ru/61772848590gld10.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/queen_azshara_heroic_tank_guidend8z7.pdfIn PDF document text
    • http://miiliioner.xyz/falotepimipa50s5q.pdfIn PDF document text
    • http://islandlandscapesbb.com/what_are_the_basic_elements_of_poetry1j2gg.pdfIn PDF document text
    • http://detonic-shop.website/15697866369v00m0.pdfIn PDF document text
    • http://lnstagaram-verifiedbadges-from.com/how_to_adjust_norcold_rv_fridge2enzb.pdfIn PDF document text
    • http://bigtittybella.com/htc_one_m8_mini_battery_replacementm75v0.pdfIn PDF document text
    • http://energytik.net/barnett_vortex_hunter_compound-bow_package18i4m.pdfIn PDF document text
    • http://baditunabupiru.mywebcommunity.org/jokotevimapafedefovogug.pdfIn PDF document text
    • http://ita-yog.space/2005_dodge_ram_1500_headlights_not_working5qvjo.pdfIn PDF document text
    • http://gatorama.fun/90447338150zye0x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zigejobo.epizy.com/gumuriginuwudo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff363d94-216c-4368-926b-313081f81a2c/ladobulanuxowakat.pdfIn PDF document text
    • http://zutugidod.onlinewebshop.net/lusakife.pdfIn PDF document text
    • http://rivapuremamoge.epizy.com/business_cards_psd_layered_free_s.pdfIn PDF document text
    • http://ravakalamixalu.epizy.com/guidelines_for_administering_pneumonia_vaccine.pdfIn PDF document text
    • http://roveramo.atwebpages.com/damajarivifibez.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/how_to_do_an_internal_audit_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7cb1431-9a28-46ea-a05e-ec9252068e0d/ravufivezipewegusodulope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86d8fad3-1a7a-4d12-86a4-b72b88a19b85/personality_plus_meaning.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_off0000f561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF561 5308 bytes
SHA-256: 51aa2c89d560f8cca09c5c7ffdbe41d3876335c3ea5cb02aa38a6f9ef69604ef
font_01_sfnt_off0001079c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1079C 10396 bytes
SHA-256: a319084bf4e82de01e50d08dbaf21510bb50ea98fd71ca78f6791fa5b83237a1

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