Malicious PDF — malware analysis report

Static analysis result for SHA-256 200750e003563643…

MALICIOUS

PDF

51.0 KB Created: 2020-10-16 16:19:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 793062256ac48b7b92b1b8252bb14bfd SHA-1: f11603fae036cfa14398bade4f8179cf200272b4 SHA-256: 200750e00356364366305b157d9d5afb3566471bc9b626277d77e2036342dac1
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://gettraff.ru/123?keyword=ligamentos+columna+vertebral+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5f88e82e42026.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371269/normal_5f8926d4b5141.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365639/normal_5f8751ca5f898.pdfIn PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/7879e5a.pdfIn PDF document text
    • https://zidabowejixu.weebly.com/uploads/1/3/1/1/131163559/komilebog.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/0e81a5aa.pdfIn PDF document text
    • https://gikoberi.weebly.com/uploads/1/3/0/9/130969260/3713778.pdfIn PDF document text
    • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/dilozanuzebew_fujodako.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/20d889f9-2b3f-4ab4-8d33-495f1937e2ba/wagilagazakejemixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deb0deab-102f-4439-9ce3-de29f0894389/22052289241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6699d9a9-0d15-44c2-9a92-f964dd66a7f0/mojuviporonaga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70b4d6c8-b3aa-42e7-89ae-4032a105dac6/sevajokivufazuzobam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/918567a4-70e7-4c97-be53-049af53370e2/vijidepupudedomajudakux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58ed54cc-c3fc-47f7-b065-07708b8df8c9/devekuvoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01d3ae7a-244a-49aa-89e7-6e267c0f857d/jadobituzizuzar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01a3cdc2-2a4f-434f-b578-1ea66c2e3a6c/21970412669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1841/8841/files/kruterkunde_guide_wow_classic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4318/2999/files/vevilarimox.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

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_off0000881e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881E 5616 bytes
SHA-256: 50ca0c8c322ecba1b7f7f9ab6d7cedc4b7a0a3aba96ebf601a4140b63e80374e
font_01_sfnt_off00009b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B29 11272 bytes
SHA-256: 00836972f1b3f5d10d468c30d643ad2e2f20fb9bf2c91a7ac0c853ff8e3a64fd

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