Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdce415cd90b2301…

MALICIOUS

PDF

51.2 KB Created: 2020-11-05 22:36:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: bea3d3c8191849530905612ef00b454f SHA-1: 7eae18946c1ba7d98f56a62c5722997abed04f7c SHA-256: cdce415cd90b2301ce86ebc0581f9db0b01a67914229aee3b130bfe8efdd5674
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/123?keyword=dell+document+hub+app+does+not+detect+printer PDF link annotation
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/2919036.pdfIn PDF document text
    • https://munujagafunudo.weebly.com/uploads/1/3/0/8/130873736/1194244.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f86f955c6849.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/6ef89953-b213-464a-8d9d-4c577cd6e37f/bedowug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04dbab1e-576a-4365-b0d9-046f12539c9c/luguwojezividekega.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/94389019222.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/553ef75b-ee01-4cb6-9360-dfa27cca9e40/niridesufug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52da513c-3ea8-4560-920d-8f3b08c0fee5/1972_dodge_demon_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c78309f5-78f6-40b7-be6c-a9aa54886eb6/dopawipamirulurikeji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41d08036-f284-4852-a2ce-682638df61bb/duvokujametepomewaxevaki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/621a9d7a-c9fc-4de9-83c2-d5af93adba18/rwby_beowolf_lemon_fanfiction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/chet_holmes_the_ultimate_sales_machine.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_off00008608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8608 5452 bytes
SHA-256: 04a209cd10501a2385a7e5f66763e48a6331154cb7422c5c045548c119a7e800
font_01_sfnt_off0000985f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x985F 11432 bytes
SHA-256: 954521def2ac1224ff1d89619f83f21d8c39b4ddc74832ac2371ec786e99abb6