Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb1ee8079bf9b22…

MALICIOUS

PDF

38.3 KB Created: 2020-10-28 19:20:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 1651132536a22975d2431db88a2feedf SHA-1: 60f88f85566b727a5ca2ecb8c8bdff23ddaa779d SHA-256: fdb1ee8079bf9b22976a219f288ed134e21596bc6fb7ea4aacd6a044b9d55701
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/aws?keyword=wing+hing+menu+groesbeck+tx In PDF document text
    • https://litazivufili.weebly.com/uploads/1/3/4/3/134305244/guzekimekemom_madirinilizulex_dopekew_toxoku.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/5469818.pdfIn PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/selodiguriximox-vuxajobej-jiripajaxemipu-witimuvaxaxe.pdfIn PDF document text
    • https://wilewefat.weebly.com/uploads/1/3/4/2/134234777/0ac7ede1ad8046.pdfIn PDF document text
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/6649605.pdfIn PDF document text
    • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/5683404.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/bc7bfba3-f3d2-4fc2-b399-d4ac2028770b/biwowagamosolag.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/la_bella_y_la_bestia_cuento_corto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecb7cde9-e813-4c0d-8d3c-b21f86e7f4ae/lidajivenopuluzolon.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/international_business_spanish_translation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5d7d0c3-cd2d-40bd-bf62-2a42d9283e08/naboranadelelibamepowobas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6139283-7acb-46fe-ae13-91a4c2492a65/36515960848.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/carbon_tetrachloride_sds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/823c85d3-65ae-4501-9cfc-c4dbf00c3619/bokevufize.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/30_qualities_of_an_entrepreneur.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/77287098201.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/75444981986.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/vujifinefekonugaseralazow.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/73373896180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97cf76cb-3f01-4db4-8de2-aa81b5d9fccc/zotusezuzo.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_off00005661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5661 5256 bytes
SHA-256: 7ff01f55f130fcde27d5cb3a42fdd500e09003db29d51d513400eb1ce27a2de0
font_01_sfnt_off00006836.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6836 10412 bytes
SHA-256: a7fb3e24fd34063c35641c33d03460541d77c4b78dad87319fb4ea8a0a2d909a

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