Malicious PDF — malware analysis report

Static analysis result for SHA-256 14bd593645463815…

MALICIOUS

PDF

71.2 KB Created: 2021-03-10 16:56:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ac72801ddcd249f8fd933c0f8229b712 SHA-1: 919035e8e9ebed56d5ac07b49d97abf1ac7c37aa SHA-256: 14bd593645463815168e4f77c6f0e41e01e20bd18e7c52ceb6449a4f60c40b5e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://midufefew.ru/wix?keyword=talking+electronic+chess+academy+tabletop+tutor PDF link annotation
    • https://zanorima.weebly.com/uploads/1/3/4/6/134624551/wujakalepidalevaku.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/until_friday_night_age_rating.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454056/normal_601795eb73b30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417325/normal_5fee2773d12ad.pdfIn PDF document text
    • http://ropisunofo.mygamesonline.org/74331942888.pdfIn PDF document text
    • https://rajagoka.weebly.com/uploads/1/3/1/4/131406288/motenobifezimidu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/feseni/the_hunger_games_catching_fire_2013_dual_audio_720p_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/25961658579.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4c0972b-e4f8-43c6-bab0-4db47b9c4d86/55886820486.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/44139038157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab6109f1-ecd6-4b3f-9ce3-51cab7fbc39b/firepotoruzidejiribubunij.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/rovelirofolameni.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/cellulose_insulation_material_safety_data_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f74c7e7-7552-4404-acf2-798f7d988e9d/dyson_v11_animal_cordless_vacuum_cleaner_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/gorinejuvo.pdfIn PDF document text
    • http://kopolug.myartsonline.com/diario_de_una_motocicleta_pelicula_completa_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/58835534760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c9e31c4-efda-462c-a24c-53f5cb527838/pilajexiwifexavutomita.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/merujiwoposufatuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/basic_skills_in_interpreting_laboratory_data.pdfIn PDF document text
    • http://fataragoreb.myartsonline.com/jenkins_dotnet_core_deploy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae271c68-4672-4f5e-b0da-d31f6f11590a/bmw_e46_manual_transmission_fluid_change.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB9C 5624 bytes
SHA-256: beb5c5eeb03b623ad89bf2ebadb187460878e2020ff75842779843b47d0550bf
font_01_sfnt_off0000de82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE82 10004 bytes
SHA-256: 742bc6f8fe366b131222e59127c64b2080f96d5b387c32f461b6b6d3ebeae2c9
font_02_sfnt_off000100cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CD 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e