Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb04787dc0f64b47…

MALICIOUS

PDF

42.2 KB Created: 2020-11-08 02:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b20740203bb57cef6071bec2c9100556 SHA-1: 9fb0958331ccd9ed01188e774ca3fc5040dd8de8 SHA-256: fb04787dc0f64b47e0286edc1e110f7514fde3276b1647f1ea353c4336898e3d
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafftec.ru/123?keyword=i+ready+hack+for+coins PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418968/normal_5f9e738ce2af5.pdfIn PDF document text
    • https://paxesejok.weebly.com/uploads/1/3/4/3/134348383/xuluked.pdfIn PDF document text
    • https://gusobenatidisa.weebly.com/uploads/1/3/4/4/134475091/wasole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386337/normal_5f94495f201f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447079/normal_5fa6d24bc7dc4.pdfIn PDF document text
    • https://suragovitig.weebly.com/uploads/1/3/4/2/134265770/xoberusuzuxoxu_difubojuwo.pdfIn PDF document text
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/9859675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402740/normal_5f9b39726a82a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369655/normal_5f8a2fa704b6e.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/nitidadufetenu/vugen.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/jusizevotadotuvotu.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/46478478160.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/94701795661.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/long_skirts_for_girls.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/cleric_spellcasting_ability_modifier.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_off00006981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6981 5180 bytes
SHA-256: bd33a021efd25db76075d3c1968667fba3269037bd065c80595e04b601613d81
font_01_sfnt_off00007b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B24 9752 bytes
SHA-256: c46dddd483b865c71e3be84d54685e0b1832527f14201e9a0036f71dd5ad8d9a