Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d05d82e0b05050…

MALICIOUS

PDF

45.3 KB Created: 2020-10-01 19:26:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 788ef4dc0c87f72e868fb481ef6b8057 SHA-1: 61fb4b1786408b0f73d0b00d88d0ddaa8ec291b9 SHA-256: 09d05d82e0b05050435887da5a3dd901af9665787c3514d160cd0215c658b980
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://gettraff.ru/strik?keyword=vba+excel+learning+pdf In PDF document text
    • http://files.pristinedetailingindy.com/uploads/1/3/1/4/131409037/b956703094.pdfIn PDF document text
    • http://kanedux.intuitivepetcare.com/uploads/1/3/1/6/131608016/7541bd24d5a0.pdfIn PDF document text
    • http://belajeze.caringinc.net/uploads/1/3/1/3/131398252/xefujipisogupun_kasabiv.pdfIn PDF document text
    • https://site-1037187.mozfiles.com/files/1037187/purizitowagope.pdfIn PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/54676735040.pdfIn PDF document text
    • https://site-1037055.mozfiles.com/files/1037055/60307800663.pdfIn PDF document text
    • https://site-1036633.mozfiles.com/files/1036633/tewadevunaxuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7487/0689/files/pelavuzajelixexivine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7753/2824/files/hunter_odom_funeral_home.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9794/7300/files/zokatizojutuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5523/files/boyz_n_the_hood_mp4_movie_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b563f63f-4f2f-44f4-99be-5eb1bcdc431d/sivano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0617787c-be7b-46fc-88d8-a28241444030/pumemoruravux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78a39143-4529-46d9-a8c3-ee3e1bee2d04/94940219847.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_off00007294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7294 5320 bytes
SHA-256: 6cc3ef43cfa81824e6f007a9bfc368bd3c40022a4dff0bd5a4a18ac84b12353b
font_01_sfnt_off000084bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 10364 bytes
SHA-256: a60965bbd397fd258591ac88b5286086b97b0e43519aa863879ef671e2545c8e

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