Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd097750a096bd1e…

MALICIOUS

PDF

45.5 KB Created: 2020-10-25 11:44:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 2a0386f80656793b4c16b042c6f87374 SHA-1: c23522c167d5a44ac11c8024fab8dc3effcd2b9b SHA-256: bd097750a096bd1e4ace702c98bff4c22cdbd51b2f519078066d004f636791a2
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=synology+ds718%252B+user+guide In PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/wopevoza.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/pigix.pdfIn PDF document text
    • https://gujojiri.weebly.com/uploads/1/3/4/4/134434224/4403798.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/2105481.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/7d37fb7.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/e5bcd2697.pdfIn PDF document text
    • https://sakuvajavabese.weebly.com/uploads/1/3/1/3/131383602/wunazovab.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/5920875c53688b.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007469.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007469.bin)
    • https://uploads.strikinglycdn.com/files/7ced21a9-6538-4df0-995b-59fe677c96a7/50556150289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94fd4da7-f835-4c88-9992-7c3b807ffe98/bonorusifakurepugopesade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbdb6333-b951-4713-b7a6-fd7372db63c6/o_and_m_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4256c5a0-ae8c-4ac6-9b15-5a6c0d200eb8/wuvaxakidabizap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e485b0e4-8946-482d-a8fc-f2ce0e389e24/9627638991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5718a1d1-6577-43f2-b308-ddac3c0c4735/61221482680.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0340f7d1-2d20-4c48-9b91-4d11e12b5b76/sudivufugov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bd419c2-9f2e-4ce8-a956-f54c1a9b2f72/83623273171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79a285b9-6a4d-44e6-b19b-613a36436048/rakitenotirarijuxiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2091/7668/files/last_crusade_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8030/0727/files/81303035600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0826/4862/files/drafting_and_pattern_making_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/5437/0468/files/disney_corp_human_resources_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7790/3560/files/godliness_is_profitable_kenneth_hagin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8987/7405/files/sajelikujifobojudi.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 extracted file (font_00_sfnt_off00007469.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7469 5312 bytes
SHA-256: 6d1cf6f74fc5ae4960ca3f4ea19dc4c2dda04bb113718e548e89936cf1790b6a
font_01_sfnt_off00008696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8696 10056 bytes
SHA-256: b93bf6e3b7b93d3b3ee9567a789f49dffe53ba9e490f051e731b088f89a99be6