Malicious PDF — malware analysis report

Static analysis result for SHA-256 9324abd01d6baf02…

MALICIOUS

PDF

41.0 KB Created: 2020-09-12 03:18:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6a5c93d29f40e6f95e57dde26eec7740 SHA-1: 3405e64c9ec5772eccc92832e586de9153b09b95 SHA-256: 9324abd01d6baf0279ad4323dd84d833e76cddfc9972cada7afa0508b8c1f022
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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.club/wix?keyword=project+budget+tracker+excel+template In PDF document text
    • http://kebutot.bodywisdommelaniepalm.com/uploads/1/3/2/3/132303195/2813673.pdfIn PDF document text
    • http://pawuwez.cantonohiolandscaping.com/uploads/1/3/0/7/130776321/3998718.pdfIn PDF document text
    • http://files.mastconsultancy.com/uploads/1/3/0/9/130969480/cac5169ee7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8647/8489/files/grave_of_the_fireflies_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/anet_a8_firmware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/wogodem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6652/2790/files/75990990491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/python_3_string_format.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2274a7_2e3ca6eb1f7349d3b2c131d5dde4e782.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/909b15_0e41d21efd56439692c30d26fa9aab0d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a58502_a0fdc060f6b241d7b87d056ac60b8242.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b65acf_05c6c03303034851825484cab870414e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5913/5132/files/49734460804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/66440040655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5606/2876/files/ipcc_ocean_special_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/51278406698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0372/2398/files/xifijajegabejod.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_off000062a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A9 5564 bytes
SHA-256: bcf1380dbf05982e7d4a1b44a5eb31e8d644d8f862f730ae6673fb125fb6423c
font_01_sfnt_off00007585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7585 9792 bytes
SHA-256: 9d717eb57b2f90baced7ff8994a77f23648663e01345d0f4890e8fea627760cc

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