Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c5d16d154ec927…

MALICIOUS

PDF

46.5 KB Created: 2020-10-04 12:21:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1faf16681e31f9af4909b412ad231f70 SHA-1: 9eb85e55d7fe48b45a2315246576ffdda4b2790d SHA-256: 34c5d16d154ec927e8e65f3b1f12f5b3f96e1cc71c0beb447c4d3d8b45134332
124 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.
  • 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://ggtraff.ru/pify?keyword=2001+ford+f150+xlt+cabin+air+filter+location In PDF document text
    • http://files.terindahestate.com/uploads/1/3/0/7/130776619/5aaeddff9.pdfIn PDF document text
    • http://files.chicandpick.com/uploads/1/3/1/8/131858540/9f73adb6.pdfIn PDF document text
    • http://fukonasi.heatherduren.com/uploads/1/3/1/4/131452917/276494b7642.pdfIn PDF document text
    • http://nitonisil.gardenspotrentals.net/uploads/1/3/1/0/131070765/98a808c21ad49a.pdfIn PDF document text
    • http://files.albarosa.nz/uploads/1/3/1/3/131378953/4795254.pdfIn PDF document text
    • https://site-1040988.mozfiles.com/files/1040988/segarotatubutokefixan.pdfIn PDF document text
    • https://site-1036850.mozfiles.com/files/1036850/kaxafi.pdfIn PDF document text
    • https://site-1036724.mozfiles.com/files/1036724/39156288593.pdfIn PDF document text
    • https://site-1036956.mozfiles.com/files/1036956/83281172050.pdfIn PDF document text
    • https://site-1036839.mozfiles.com/files/1036839/wojitelane.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/44394aa8-ad3e-41ef-b1cb-15f5ca8b4346/begivuver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d831652-9a38-4f68-b265-7e069730576e/47473321875.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50f709cf-5cc3-4c69-a51c-ecf8bb61b419/58238546253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9573dbea-2d7a-475f-b7c5-893b4625a1b6/muraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2781/5833/files/cursive_writing_capital_letter_k.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3603/3695/files/estimating_and_rounding_decimals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6554/3329/files/igora_royal_mixing_ratio.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_off00006c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C65 5400 bytes
SHA-256: 77364a2ece31e0f23aea2d317cdf9566b2aac047640895b31636591d716fd2fe
font_01_sfnt_off00007edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDF 14508 bytes
SHA-256: 38a9de0a8ff5c72a7c881fcc5b2efe93f4260dfdc46e9a219eb825c88a421987

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