Malicious PDF — malware analysis report

Static analysis result for SHA-256 12eba76e0c44e527…

MALICIOUS

PDF

78.9 KB Created: 2021-02-23 09:50:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 35bee909925e82c1997b71c8173dc7a5 SHA-1: 34ab906bbbb57ad384f0df403b26b595a2438f71 SHA-256: 12eba76e0c44e5273f6c9a74009c2a7f4477de4f79b5073dd1e49e278ed9a293
136 Risk Score

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
  • 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://baarspo.ru/wb?keyword=world%20war%201%20questions%20and%20answers%20quizlet PDF link annotation
    • http://kapusta.pro/drawing_ideas_for_beginners_step_by_stepuk88t.pdfIn PDF document text
    • https://cdn.sqhk.co/modebopogut/jxihid8/infected_ingrown_pubic_hair_treatment.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/cKccfZR/vabovitijumajufu.pdfIn PDF document text
    • http://avtovishki-msk.ru/wwe_mayhem_cheatsu0phs.pdfIn PDF document text
    • http://larts.digital/how_do_i_complain_to_palstv47w.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/ahijfhd/powetev.pdfIn PDF document text
    • http://thepropheticapp.com/needle_emg_report62fez.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/sat_subject_test_bubble_sheet1onky.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/qjfUjc5/50_in_1_free_games_switch.pdfIn PDF document text
    • http://vknacruckalaikov123.xyz/19814452506s0tbb.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/fevobelijogal/kabezumerekasewakepi.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/teaching_idioms_2nd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/anniyan_songs_kuttyweb.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/kenomol.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/v380_wifi_camera_app.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/febejulinibirokuzogaz.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/mokomureziluwagipolu.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/undp_human_development_report_2019_upsc.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_off0000f642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF642 5152 bytes
SHA-256: a62f70e877e4d875f13bca3251c47c8bd6954529bbe392e1fe41013f2e7938b1
font_01_sfnt_off000107f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F2 11336 bytes
SHA-256: 460291214f9520d31bb6475eca2e7f2f9eb0e4782bc7d2234d68dad6271e37e1