Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c585ddcf58a6d1…

MALICIOUS

PDF

45.4 KB Created: 2020-10-25 03:04:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 5c09a4882c99135fb5dc9def84c43693 SHA-1: 5875a60059bb208c6674130788921e828e935689 SHA-256: c0c585ddcf58a6d124bcee896238f9b6246d7dba0bd0bd061bbc91348b6271b6
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/123?keyword=wool+cashmere+care+instructions In PDF document text
    • https://raxabebawozovi.weebly.com/uploads/1/3/4/3/134311701/71044.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/2899074.pdfIn PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/lerepomuxe.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/7f005.pdfIn PDF document text
    • https://wazajodowefode.weebly.com/uploads/1/3/4/0/134017502/domomipunel.pdfIn PDF document text
    • https://godadonalizubo.weebly.com/uploads/1/3/1/4/131437317/lejemaminudorava.pdfIn PDF document text
    • https://regujume.weebly.com/uploads/1/3/4/3/134339948/kabusezabusep.pdfIn PDF document text
    • https://kikuvabafot.weebly.com/uploads/1/3/4/3/134332304/mepomugarig_loferasiwitiji_losal_wizasinu.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000734e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000734e.bin)
    • https://uploads.strikinglycdn.com/files/6ba63723-6802-40b2-bab8-b61287816f1b/mizamodomogoraket.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28fba3f1-b160-4e1d-85ee-07924ae40b02/joxigiwomipikuwuwomubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e74ad921-52ea-4c80-ada3-ffa843562bcf/nenalowofadiriworufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4751/6835/files/72190975400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/2958/5830/files/transplantation_immunology_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/5118/4028/files/building_atoms_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/1325/9431/files/51695546536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/856cbf95-347b-4f79-9072-e15dcf10a350/52822163868.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c0087a7-eee8-422d-8012-21fe4c265e39/89044363205.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dfd6d2f-d14f-4ca6-aef5-951cce17d09b/65983138641.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 extracted file (font_00_sfnt_off0000734e.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000734e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734E 5052 bytes
SHA-256: fdc0ad2afa6f0a53cb5acdce9ad41d68c75758ab75bacd69927d2b57fae54e12
font_01_sfnt_off0000845a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845A 10500 bytes
SHA-256: b6cbf1872ea8ae621213f2ea0ea7a732c3eb4ce999e0fcb87e87e8e391becdd2

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