Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b03332a5dbce8c9…

MALICIOUS

PDF

61.9 KB Created: 2020-11-08 08:16:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 7e30766fcc0842dd885a3b62a5c56f82 SHA-1: 5766d5bcc125f609db8d779e43f79a5055896883 SHA-256: 2b03332a5dbce8c9d4938a7265fe89adc2cd4ff0e063eddc58f3f93a9a326c06
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://traffset.ru/123?keyword=dnd+5e+battle+map+maker PDF link annotation
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/4141888.pdfIn PDF document text
    • https://xorusisu.weebly.com/uploads/1/3/4/3/134314808/fa502984bf753.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408878/normal_5f9df98c88257.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413458/normal_5f94320ce5564.pdfIn PDF document text
    • https://gozisali.weebly.com/uploads/1/3/4/6/134670052/7296315.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://uploads.strikinglycdn.com/files/bab0627d-e0b6-4ec9-aab1-73154477de47/rulerigoxadejafijor.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/chemistry_form_2_structure_and_bonding.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/25960116415.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/risibiza.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/88222349375.pdfIn PDF document text
    • https://s3.amazonaws.com/sanekufiwumafo/luzerne_county_child_support_warrants.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36ecb5e6-6a7c-41ce-aba5-e20c3ab45d90/50866862735.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/fujitsu_remote_control_ar-ry16_manual.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7103 16592 bytes
SHA-256: 37bbcfa9452253f07e020117ddc467378380e9b1da6b1cc25a3b257fbb9e8e46
font_01_sfnt_off0000a5fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5FB 4884 bytes
SHA-256: ff867e39aebbce87eeb161d5254ae51f81fc58267cb1d34ffbdc8f8940d8cecb
font_02_sfnt_off0000b675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB675 11196 bytes
SHA-256: 652906df5db263b222b95a576d05063bdaf49c739983c15756248a1cfa4951db
font_03_sfnt_off0000dc9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC9D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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