Malicious PDF — malware analysis report

Static analysis result for SHA-256 055510f782294c68…

MALICIOUS

PDF

52.1 KB Created: 2020-10-30 11:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: be7652650003f1f73b455fdf095d09fa SHA-1: b8221da871b9f9c8fbee775c74d2517c658fd0de SHA-256: 055510f782294c68db5aaaa6b26242987dee317e77a7e47573bad268794b5550
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.me/123?keyword=kobalt+socket+set+tool+box In PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/vekewisinonarege.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/7331740.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/5920049.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/8763257.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/nanogonezipujujabud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/roxawo/35836452823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/7215/7349/files/siriusxm_canada_apk_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/66840349362.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/wave_equation_pde.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9871/6324/files/limbo_apk_with_obb.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/39611667169.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/leadership_styles_in_education_administration.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/jasotulifizekuvumomi.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_off00008b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7C 4936 bytes
SHA-256: dea25b0d75ed0f5b8f12eeba0c0c038574ff810a105375901f5b563d229227be
font_01_sfnt_off00009c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C5F 11424 bytes
SHA-256: a5733a4662b0951d91ae10b461ac036b4c0f153b03113dbca59f4c8ab42374c3

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