Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80bdebe022938c2…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 21:39:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: aabfba6c93daea34512e35ba16ce9c6b SHA-1: a2b5d15970d60f9f3a4df31a1fd4b105c828ae03 SHA-256: d80bdebe022938c2aec4cf8292303c638c52300d0fcd80157c16a296c54293ab
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://soxebez.ru/award?keyword=how+to+livestream+with+canon+vixia+hf+r800 PDF link annotation
    • http://rexejirajena.22web.org/92846243655.pdfIn PDF document text
    • https://mozalotajevel.weebly.com/uploads/1/3/2/6/132682758/5907324.pdfIn PDF document text
    • http://fitdieta.com/modern_bus_game_simulator_apkxn2aj.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/top_up_my3_simaq5ig.pdfIn PDF document text
    • http://papotanepif.22web.org/what_is_database_management_system_and_its_functions.pdfIn PDF document text
    • http://wuwibapuwete.22web.org/foxazogibulib.pdfIn PDF document text
    • https://welirupew.weebly.com/uploads/1/3/4/6/134662060/zosumu_baxodav_kanebasil_neposu.pdfIn PDF document text
    • http://wersita.fun/adobe_photoshop_7._0free_for_pc3a0r9.pdfIn PDF document text
    • http://xuxogez.22web.org/nilarivo.pdfIn PDF document text
    • http://motivawka.online/identify_the_problem_and_solution_worksheetszoefp.pdfIn PDF document text
    • https://jidisoluko.weebly.com/uploads/1/3/6/0/136097174/mojasobem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380858/normal_602c192993d87.pdfIn PDF document text
    • https://jegumozapibalan.weebly.com/uploads/1/3/4/0/134013344/1527809.pdfIn PDF document text
    • http://fredo.bike/waxekelukifizvyi.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/kikunojulejuj/marvel_future_fight_apk_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/tamil_calendar_application.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/52256608078.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/78342209628.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/77936080667.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_off0000dd23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD23 5636 bytes
SHA-256: fbbe2409bddd7d884154cd56c60cab40363bce02c59127ff3ee99e24c6919360
font_01_sfnt_off0000f03f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03F 10480 bytes
SHA-256: c4ac92b4bd8380b4cba142aa9e00b152456156bcdb3e01459be4f52f4621931b