Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ed11431a585753…

MALICIOUS

PDF

43.8 KB Created: 2020-10-28 01:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: a8760869ab4a9603b910e8ffe1bbba81 SHA-1: 184206c686d47c5f6471f6b8a6f04924acc7aaaa SHA-256: 32ed11431a585753524feb18134d20b21503ad485c10808cfe64e4dd3d4e99de
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.me/123?keyword=dodge+county+clerk+of+courts+phone+number In PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/vadewulusiter_jupezitejok_tuzadaru.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/tabizedime.pdfIn PDF document text
    • https://kufazijofiw.weebly.com/uploads/1/3/0/7/130776126/rasojitapobe-datur.pdfIn PDF document text
    • https://davobudo.weebly.com/uploads/1/3/4/4/134432622/6825918.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381964/normal_5f8d24360aecd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377647/normal_5f98a708335d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392647/normal_5f932be2455ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385427/normal_5f90bf2414f5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393183/normal_5f8ed936251d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367927/normal_5f89b59e6ad95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390057/normal_5f8f68b4194c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368767/normal_5f914a7174368.pdfIn PDF document text
    • https://topodomero.weebly.com/uploads/1/3/2/6/132696018/bipivoz-xutapurubi.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/3e40ee2b3800.pdfIn PDF document text
    • https://pukejuzim.weebly.com/uploads/1/3/4/4/134457080/3b2c40.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/febafd3d195a9.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/zirojopemup/71784867750.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/apgar_score_indonesia.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/little_briar_rose_brothers_grimm.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/factors_affecting_demand_and_supply_of_agricultural_products.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/bankersadda_gk_capsule_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/aprendizagem_significativa.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/anafranil_75_bula.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/pemudonokekuxufiluti.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/thriller_books_free.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_off000069f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F9 5664 bytes
SHA-256: 9e689d0046df88e2a1340b858a6d87f1d1f842c7cef98e35e1d90d72de4c1ecb
font_01_sfnt_off00007d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2B 10632 bytes
SHA-256: be04707fbe102d41448ff4e054c8b0f82ecbd13f4568ebedb5832abe2da3c90a