Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aed26475788a0ab…

MALICIOUS

PDF

84.5 KB Created: 2021-03-06 16:45:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 00fe7f5e890e2625cad2377b1bfaeb84 SHA-1: 542a513df8b50b2f82caa8165a8a9de1a0d31916 SHA-256: 2aed26475788a0abf6fb5089a24127a03ff002824b842c31148710e4c7d5c1ed
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically targeting a search query related to renewing a driver's license, indicating a phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were extracted, the PDF structure and embedded links are indicative of a phishing campaign designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/strik?utm_term=oregon+dmv+what+do+i+need+to+renew+my+license PDF link annotation
    • https://cdn.sqhk.co/lerapuraroke/hjja9Mr/best_game_screen_recorder_for_pc_free_download.pdfIn PDF document text
    • http://goossyy.online/ponaxeludumugi12kll.pdfIn PDF document text
    • https://cdn.sqhk.co/bekutojeke/jyrlojI/qatar_stars_league_table_2019.pdfIn PDF document text
    • http://nonly.xyz/como_esta_formada_una_imagen_digitaltoct5.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/kepojoguzaxo.pdfIn PDF document text
    • http://ital-girl.space/rabokebuvowuwilozosunagigumxhc.pdfIn PDF document text
    • http://return-0.com/photosynthesis_lesson_planzua38.pdfIn PDF document text
    • http://wiinorama.website/chemistry_gilbert_4th_editionmonig.pdfIn PDF document text
    • http://lbaranaydin.com/fejenawoxoviwavapex3iur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497109/normal_5fd8336b2e5d3.pdfIn PDF document text
    • http://toppiksnack.xyz/compassion_focused_therapy_worksheetsrf9h6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372719/normal_5ff9e76150bd0.pdfIn PDF document text
    • http://pinerapidsrr.com/498600126290ysj5.pdfIn PDF document text
    • http://hhizmet.com/play_free_3d_train_simulator_games_onlineipjny.pdfIn PDF document text
    • https://cdn.sqhk.co/lagusive/divigJs/gemofufovevepujekog.pdfIn PDF document text
    • http://lnstagram-helps-contact.com/singapore_math_dimensions_1bo5uya.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/tobaziw/us_navy_dive_knives.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/corbett_maths_ratio_worksheet.pdfIn PDF document text
    • http://ziwemasux.myartsonline.com/62282730782.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/79344813051.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/84903439255.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001001f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1001F 5424 bytes
SHA-256: eb75d5aa0ab1282b8b13096fda5db12c30203019382b9afdce23a0aa9b417aaf
font_01_sfnt_off0001126f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1126F 10352 bytes
SHA-256: a4a3e5967e9c8efe810aacb94be10302fcb57d84d6d44064b7c30fd0ba8c8e39
font_02_sfnt_off000135d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135D6 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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