Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00b0dfb97759650…

MALICIOUS

PDF

45.2 KB Created: 2020-10-10 06:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f00e5929efcefae7553df65b8e70b72c SHA-1: e593567dd109fe45d960f491012fbf238101d711 SHA-256: e00b0dfb977596500179ad1811c0ecca2ba544bc2757be2fd558cfe2578842ce
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://ggtraff.ru/strik?keyword=tire+mobility+kit+ford In PDF document text
    • http://xepol.friendsnorthcreekforest.com/uploads/1/3/2/8/132814930/5876978.pdfIn PDF document text
    • http://runokite.gnanabodhiniprimary.com/uploads/1/3/1/3/131383581/sukalugopif.pdfIn PDF document text
    • http://files.culturempls.com/uploads/1/3/1/8/131871970/jubixexupub_xepawamupite.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://cdn.shopify.com/s/files/1/0439/4385/4235/files/jedi_knight_swtor_fashion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/6292/3942/files/kerojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/julius_caesar_character_traits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5323/8430/files/star_wars_battlefront_iii_legacy_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7176/5664/files/gajuwupukopeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6146/8574/files/72911596908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/63632847356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/103ce858-1d73-4264-a21c-61b3f54fd9d0/97726351714.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a023bdd3-1e2d-4632-a00d-c13ad961c3af/49131833332.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ffad061-2bcb-4771-8f55-6d31024046d6/13927386565.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b417293-03b2-45f0-b28d-6270e5d22eec/39606869181.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AA 4600 bytes
SHA-256: 74ea878944cc8f0689063bcee2a02700846d6c49a7402b69fe3d5a0f49053d30
font_01_sfnt_off00007756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7756 10144 bytes
SHA-256: c692d01bb0efa0409bd26aba5495beaafbb7b0abb2043263e0a3d8d5bceca46a
font_02_sfnt_off000099fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99FB 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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