Malicious PDF — malware analysis report

Static analysis result for SHA-256 80450b85ccd2f4c0…

MALICIOUS

PDF

81.5 KB Created: 2021-05-22 16:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d408f6762e03ac93512a9f35ac452b09 SHA-1: 24ebbcf4839b0a903b2e74f67c46bf6f8377c5e3 SHA-256: 80450b85ccd2f4c03d4a430ca0cfd0c55afe8dd3e150bdcd0821739248fad757
156 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it's a link farm, with a primary URL pointing to a site offering 'Cinderella full movie in tamil download'. This, combined with the ML classifier and ClamAV detection, strongly suggests a phishing or malware distribution lure. The presence of numerous external links, including one to a Weebly hosted PDF, further supports the malicious intent.

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 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.
  • 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://maypoin.ru/strik?utm_term=cinderella+full+movie+in+tamil+download PDF link annotation
    • https://bewotababuruga.weebly.com/uploads/1/3/1/1/131163836/dexujeme-zamuwiwowutozis-tesawuxerizex-viwekupopuvilet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474445/normal_60303ff31922b.pdfIn PDF document text
    • https://kimuremosov.weebly.com/uploads/1/3/4/7/134732255/ragizirop.pdfIn PDF document text
    • https://zafapuguma.weebly.com/uploads/1/3/2/7/132712217/9576b40a1.pdfIn PDF document text
    • https://wisukasef.weebly.com/uploads/1/3/1/4/131453855/9375627.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450415/normal_603ab7d4bdec9.pdfIn PDF document text
    • https://jotitotibewava.weebly.com/uploads/1/3/1/3/131383271/zajinupoguluw-damak-bofenufubug-sujevagefeja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451970/normal_6064b43b3a0b0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/001070bf-3100-4ed8-8e44-4af94beeff59/hindi_heart_touching_love_story_video_song_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/arrange_page_order.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/17221506095.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/training_and_development_job_description.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/death_note_anime_movie_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab619222-7fa8-4e19-87e1-031e6cae8cc1/ged_social_studies_practice_test_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/57689557204.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/76671266615.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/hello_tune_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/fusaxukosavopuj.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/factorization_practice_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/adblock_chrome_free_windows_8._1.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/77805943038.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_off00010250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10250 4932 bytes
SHA-256: cf85ab621e6b85ceb822359d0f230d22e9c8782cff0af36e97d934d52053e25f
font_01_sfnt_off00011310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11310 10892 bytes
SHA-256: 249773d8636a0542f140d0cb6bfd72c40667bc1ae2d6ac570a6ce1eaf8c9f392

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