Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c32e67eb0b97bfc…

MALICIOUS

PDF

72.0 KB Created: 2021-02-12 02:43:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 05ec613c6b1839d04b241ace9714ca42 SHA-1: 56f37d47cf29f45804d60721197fcf10c4eae867 SHA-256: 7c32e67eb0b97bfc4e5ca244f577139e1be9e58aec02a1d8abbe8b6ee6eff097
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=prepositional+phrase+worksheet+with+answers PDF link annotation
    • http://gufutaca3.xyz/tavefeweyffoo.pdfIn PDF document text
    • https://vuxuminitemup.weebly.com/uploads/1/3/0/8/130874085/0734e5ec3.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/torabakiwta2ij.pdfIn PDF document text
    • https://ratesikumetu.weebly.com/uploads/1/3/1/1/131163578/memimi.pdfIn PDF document text
    • https://fozivumi.weebly.com/uploads/1/3/4/7/134761275/4102298.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375093/normal_5ff973ed2177a.pdfIn PDF document text
    • https://varepanuror.weebly.com/uploads/1/3/5/3/135394497/dobebefetugezata.pdfIn PDF document text
    • http://choosenews.space/34141765041ejlp4.pdfIn PDF document text
    • https://vumopofusub.weebly.com/uploads/1/3/0/8/130874587/2aee0cfb04845.pdfIn PDF document text
    • http://masterpowerpoint.com/66051453667tc16e.pdfIn PDF document text
    • http://help-nanny.site/workplace_chat_windows_10fdb5s.pdfIn PDF document text
    • http://goodshopsales.xyz/setapokijifunenezige413ex.pdfIn PDF document text
    • https://wisapemewe.weebly.com/uploads/1/3/4/7/134713478/66cf0661f6ed.pdfIn PDF document text
    • https://fagozozefixus.weebly.com/uploads/1/3/4/8/134846406/vokulamilo.pdfIn PDF document text
    • https://xumodaniteged.weebly.com/uploads/1/3/4/4/134480563/8318619.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/xovekolamoxe/bs_player_for_ubuntu_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/44148861057.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/best_ambient_sounds.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/19746499477.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/anjaan_movie_songs_video.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_off0000de3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3B 5064 bytes
SHA-256: 5f67075c4415f60442cb0937a326cf0a014c68e570a5db637b8245b5085c2f67
font_01_sfnt_off0000ef7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7B 10160 bytes
SHA-256: a10544b821339122317b009cac5ffdcff3f00e9ded74f11e56595f88d5ccb6bf

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