Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e9ffe0196c9b8e7…

MALICIOUS

PDF

44.0 KB Created: 2020-10-04 19:29:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 96c0c59d854c9f64481b6e75c27a81d8 SHA-1: b7ce447ea2fdafa5b66ee368def37c7d3b6c9f5d SHA-256: 9e9ffe0196c9b8e7711abba8d17e540ee2d50d554b61d6b44b65e6f9305ba419
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.ru/pify?keyword=latin+kings+face+tattoos In PDF document text
    • http://mubopit.catoctincounseling.com/uploads/1/3/1/3/131398232/pemutevuxedujakot.pdfIn PDF document text
    • http://files.gtc-elite.org/uploads/1/3/2/6/132682570/netefikuvuboz_fifajog_jubakafa.pdfIn PDF document text
    • http://files.bringyourownparent.com/uploads/1/3/1/0/131070131/mafokizuwop.pdfIn PDF document text
    • http://buxuxika.purezaoliveira.com/uploads/1/3/1/4/131407995/6477595.pdfIn PDF document text
    • http://kabefurog.ezek.com/uploads/1/3/0/7/130775050/6819806.pdfIn PDF document text
    • https://site-1038669.mozfiles.com/files/1038669/wuzamufesafolirakup.pdfIn PDF document text
    • https://site-1039995.mozfiles.com/files/1039995/xosevupipow.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/b8867bae-e633-44b4-a3bc-f8e9e08375cf/vixawifikapitepetiwobumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/143a4b1b-6d87-472a-8246-656898933946/9523093054.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02feabc2-a54f-4365-b8df-1da533e089a9/tibibewevefaxixavisudorag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7688260c-b66c-411f-8990-e9bfeab0cfc6/19967912690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2862f20-0f67-4e6e-b937-9715c4b7846e/21895124600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6451/1649/files/four_swords_manga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7079/7462/files/what_is_lupus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9859/0372/files/bloons_tower_defense_unblocked_google_sites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3620/9063/files/53947749793.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_off00006f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F78 4928 bytes
SHA-256: 7a534e6d5631d11be5d63ece5b4f63c30896ba9f033e408d676e3ddcacd548db
font_01_sfnt_off00008066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8066 10192 bytes
SHA-256: 7495ffa0f7fa64c537110437d0573d45a96b2d8ae3401f038becad56e8668341

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