Malicious PDF — malware analysis report

Static analysis result for SHA-256 232949173b8d024b…

MALICIOUS

PDF

56.6 KB Created: 2020-08-18 15:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8608ad5125719667b58698630e3f8cdf SHA-1: 2b954354c81eae71e99bffe3018a6cebad2ec661 SHA-256: 232949173b8d024b3611e0ece332c2ae07b826b15e74ac0c3a89444b8e78d52d
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.cc/pify?keyword=bootstrap+4+band+template In PDF document text
    • http://lanuduwit.windowreplacementframingham.com/uploads/1/3/2/7/132740214/67348d8082.pdfIn PDF document text
    • http://files.footankleresource.com/uploads/1/3/1/1/131163705/jotevesoferirofed.pdfIn PDF document text
    • http://zemavowa.oaklandmillsonline.com/uploads/1/3/0/7/130776436/4f002fed58.pdfIn PDF document text
    • http://geruneva.johnmrinaldi.com/uploads/1/3/1/4/131453459/sufasekiwedaxetox.pdfIn PDF document text
    • http://files.addressphonelist.com/uploads/1/3/0/8/130813427/riferejip_viluzopebazofad_bepuxoxa_dakavozedeza.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/1/0431/4988/5606/files/93452771819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7405/0458/files/soal_psikotes_cfit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/lopewovosijudaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/durapifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7896/6686/files/emily_bronte_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7766/0825/files/petty_cash_book_format_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4189/1238/files/61654671422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/impact_of_human_activities_on_environment_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/90354525299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/mtg_biology_book_download.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_off00008d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D38 5380 bytes
SHA-256: 4b1becf93e2a7ae3d3dce8f2f2e706fee2eda495ac89f78ef24c01f54a200c85
font_01_sfnt_off00009f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F6A 17428 bytes
SHA-256: a0bde49fa8a8e6ff8293005ba77c616972c90dda1d1ff988d04b1c636280effc

Open this report in the interactive analyzer, or submit your own file for analysis.