Malicious PDF — malware analysis report

Static analysis result for SHA-256 69319c8cc774db49…

MALICIOUS

PDF

45.4 KB Created: 2020-11-09 15:21:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 08564090d7c7988a751ed3a14e731586 SHA-1: 7e79aef94ecec5ae833e252fcf4ef72f353f9023 SHA-256: 69319c8cc774db49a071aba6d91da781dbb47c62ac0b56a2feb91608988cc04e
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/aws?keyword=best+high+schools+in+kingston+jamaica PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4412908/normal_5fa5fd10dee30.pdfIn PDF document text
    • https://wimolakerozer.weebly.com/uploads/1/3/4/4/134448160/mebidatizun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405654/normal_5f9b7fb9c311c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377400/normal_5f91073ccc268.pdfIn PDF document text
    • https://nosavarugogitov.weebly.com/uploads/1/3/4/4/134488680/letixe.pdfIn PDF document text
    • https://xiliperudal.weebly.com/uploads/1/3/3/9/133999468/nesozujoxepo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476152/normal_5fa5dc485c3a7.pdfIn PDF document text
    • https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/1720707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369911/normal_5f8965690e820.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/249ec185-58c1-4199-b671-e4bc9bac4abd/rca_home_theater_system_rt2781h_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/61307542846.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/182a8fa6-baf7-489b-9270-160ae92341e9/osrs_chompy_bird_hunting_guide.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_off000071bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BF 5304 bytes
SHA-256: 2d9f2b58a74c9ce9c1568c31f0c279f6d56b7d3b1dbe8853142929fc2929880d
font_01_sfnt_off000083bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83BC 10892 bytes
SHA-256: 7b127cf81e7e36058d0b3fcdc46541d32506b3d7f8da4a7995a7cb4b8faf959b