Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ba5ab87d853abc…

MALICIOUS

PDF

60.7 KB Created: 2020-10-03 02:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3a46f21ddfb56cc9eaf731751f4152ca SHA-1: f634e89c26374581e207502cc4f588cb4ee998e4 SHA-256: d1ba5ab87d853abc39fdb306a07c1952b80018748a7a255c76aff2b1fd39507f
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.club/pify?keyword=activate+chase+debit+card+2020 In PDF document text
    • http://files.isnaa.com/uploads/1/3/1/3/131398374/jabejefux-wumal-fomidonibokuz.pdfIn PDF document text
    • http://files.inszczecin.com/uploads/1/3/1/4/131409498/9092155.pdfIn PDF document text
    • http://xilax.cherishcreamery.com/uploads/1/3/1/8/131872225/gamowaf_wojoluramug_jajoza.pdfIn PDF document text
    • http://files.johnrosseconomics.com/uploads/1/3/0/9/130969724/a6b978e1c838.pdfIn PDF document text
    • http://www.fotolia.com''gt;fromIn 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/1/0481/8518/0327/files/saliwudegaxametavoxux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8838/0058/files/mukakawebekolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3083/1253/files/delenofaxebadudubamik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7584/3736/files/ragnarok_me_priest_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2951/0814/files/ocean_is_home_survival_island_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6082/0133/files/loxubogelilaseva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/3767/3630/files/vsp_employee_enrollment_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1770/5893/files/53446479956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1285/files/xobekidaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/4488/3608/files/20205243476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b5c50dd-b032-4594-aa45-032ba3faea28/35221982601.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7eab394-a79f-4bc5-9602-ec7eb397ea8e/jafesefamebamovegagupizax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a593e74e-75e9-42ed-a1df-f6e2ebe87a5b/tobolelu.pdfIn PDF document text
    • http://www.fotolia.comIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE51 5460 bytes
SHA-256: 1068bbcf9baf4adee2756a47b6ad026bae09c4e4bb0687ea139bc455ca08c75b
font_01_sfnt_off0000c0dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0DC 10836 bytes
SHA-256: 0cbcb7d2d574311baa570d83ea3f559cd1f40f054dc0b32f5c189a3763e0c2b7

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