Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc96c45a16b83328…

MALICIOUS

PDF

43.6 KB Created: 2020-10-07 05:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e313df380766d568a484d9e261aaf681 SHA-1: a70603b0c9529a184787d192aa4b2ddf7e17c6a7 SHA-256: bc96c45a16b83328fa1eace2e5a012a757040e170d5947fe60eb0f491addbe3e
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://cctraff.ru/strik?keyword=paroles+gare+au+gorille In PDF document text
    • http://files.sammyhlk.com/uploads/1/3/2/3/132303340/7548cc9398c.pdfIn PDF document text
    • http://files.heavenbphotos.com/uploads/1/3/2/7/132741181/5298304.pdfIn PDF document text
    • http://files.geurtvanrennes.com/uploads/1/3/0/9/130969428/9295424.pdfIn PDF document text
    • https://site-1039224.mozfiles.com/files/1039224/71152139326.pdfIn PDF document text
    • https://site-1039328.mozfiles.com/files/1039328/36342638650.pdfIn PDF document text
    • https://site-1038992.mozfiles.com/files/1038992/jikuligebibulidanusutuwe.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/3fcf3d6b-19b4-43e0-b3ab-e452388ec182/98184742846.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa312380-736a-4121-88f5-a545a0fcdd30/85275067447.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55bb6d11-1262-4bba-a527-321e1f7bf54f/gavozisomefiloraxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/nabevolonal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5464/4894/files/to_make_amends_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6878/2757/files/wild_by_cheryl_strayed_free_download.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_off0000698f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x698F 4852 bytes
SHA-256: ec3367673cb03b60ee6e5ede3188ccfc50a1aeee917b575562b8eff2e043cc25
font_01_sfnt_off00007a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A19 12288 bytes
SHA-256: 08af5271c7e590de32c173525b1cb467c009d719c4ff3fc819f9b7fc7a0fdf01

Open this report in the interactive analyzer, or submit your own file for analysis.