Malicious PDF — malware analysis report

Static analysis result for SHA-256 568db3b590350300…

MALICIOUS

PDF

40.1 KB Created: 2020-11-01 12:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 4a549aab81f42ed0f597ad91380618c5 SHA-1: a08a2d733f208dd785e0da318dfaac9923e54592 SHA-256: 568db3b59035030060b613e8e48d98085890e2fbe43e6d23d3207f92157f93df
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.me/123?keyword=baseball+price+guide+2020 In PDF document text
    • https://bovitala.weebly.com/uploads/1/3/4/4/134497817/5983426.pdfIn PDF document text
    • https://sebiwijojemobod.weebly.com/uploads/1/3/4/0/134097571/wolum-wuvagojatagi-levedowajaxos-gexamugivo.pdfIn PDF document text
    • https://tololomajaju.weebly.com/uploads/1/3/4/4/134472688/jijukavi-remazijujet-mutapakom.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/9c6b3b29-a853-47fd-b61d-ad6dc2eb0ecc/download_whatsapp_apk_for_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2664/7709/files/pedunasubivanaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8603/5108/files/268553809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/soziraravafiwuwawomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1421/1742/files/55449899851.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30f06a2b-ecd4-4172-aabe-3a5745996007/fosinatafezosajilubuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9844/6231/files/nflrush_scrambled_legs.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_off00005b26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B26 5704 bytes
SHA-256: 30fd85fcf72e7c630df51d88195ab1d847b3b7ff653019be00dac80b4e777798
font_01_sfnt_off00006e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E97 11068 bytes
SHA-256: 32038f05b293b0af885320289a81df1767799b2fe7340441ed8cc8fc9aa23a58