Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3cdc24c6c1a6fb6…

MALICIOUS

PDF

46.6 KB Created: 2020-10-18 20:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 4fad6694464c64786a75340455eb34f0 SHA-1: 5fba6598d5ea83c20411b74f4a35fbd61928c5f0 SHA-256: b3cdc24c6c1a6fb642bc6f431054f7334edc733f3e88ff3b9394db629db42d17
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=edmonton+movie+guide+princess+theatre In PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/gexipesivus-zaxawigibixaluz-wadasat.pdfIn PDF document text
    • https://wozofawado.weebly.com/uploads/1/3/0/8/130874325/4a0932.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/8625127.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5f88afb57cea1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372377/normal_5f8a213058b65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365576/normal_5f8708d6460b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367308/normal_5f8a587d50c1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369784/normal_5f888d7048a10.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/c482acb308ee.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/sujikuw.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/358353.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/9b246503-82bf-4c7f-aee9-8820c16e9b3d/ripum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0fe4075-87af-495f-82b6-122502409610/kivewefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0046a127-bb6d-445a-836e-6315b0b0c4b1/73264935047.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68c23b06-8730-4a20-b3be-8f29a26bb86f/58669480642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1686/5952/files/voluvasozagolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/zupuruneniduboborus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3927/2345/files/when_do_booth_and_brennan_first_get_together.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5274/6920/files/10800633743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/2356/5478/files/writing_for_dummies.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_off00007561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7561 5472 bytes
SHA-256: 4756f2ea67a42a5117425c1e7a6518c5b829c309ec4d619c65672b1aa5b0ee67
font_01_sfnt_off000087e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E0 10808 bytes
SHA-256: 3ab40c42b8f6482358db752a8c8371d06c69cb57af8c4d9c2e00cf2bcc986fc5

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