Malicious PDF — malware analysis report

Static analysis result for SHA-256 7392ccd5ede04a96…

MALICIOUS

PDF

52.2 KB Created: 2020-10-26 00:05:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: a3d0585a4709e45823cc61fc8f6f12d9 SHA-1: 6048ed64795ce7339b2ceb828b9f2b0768d1f652 SHA-256: 7392ccd5ede04a9660fd9dc93f7aa40ec193f14845f742fbd9128002cfc99aa0
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/aws?keyword=genestealer+cult+codex+pdf+7th+edition In PDF document text
    • https://cdn-cms.f-static.net/uploads/4377674/normal_5f93e8429d938.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368243/normal_5f8c22bbbb200.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366654/normal_5f874a52aabf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386076/normal_5f93fcc7d2135.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/3502486.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
    • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/2027464c.pdfIn PDF document text
    • https://niliwuwez.weebly.com/uploads/1/3/4/2/134265541/920745.pdfIn PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/ratejilelamatul.pdfIn PDF document text
    • https://jikajulimag.weebly.com/uploads/1/3/4/3/134319013/kujiwifoxe.pdfIn PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/fuzejanitip.pdfIn PDF document text
    • https://besajiti.weebly.com/uploads/1/3/1/8/131856076/pidefi.pdfIn PDF document text
    • https://xakexoxos.weebly.com/uploads/1/3/4/3/134307698/zawovorabowim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372360/normal_5f8e437b4ebba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379217/normal_5f8a31a91b934.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383804/normal_5f938be89c1e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390328/normal_5f9390051f18e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381102/normal_5f94997b3059b.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/80df2bb6-5ac0-4c27-8ad5-2da51df8ddec/read_nancy_drew_books_online_free_pd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dca8f56e-e0b4-4c8a-9181-cc9fe18655e2/safofomakubiligix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1560b0a-bd5b-4d54-aac7-d6651d282638/mugelut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/complex_sentences_for_ielts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7698/8309/files/zowakipikerizarijoni.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_off00008dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC4 5420 bytes
SHA-256: 6b1d500643cf78a1486cff5b9fbb100ba3bd7aec3f955b406eeaf5a397425428
font_01_sfnt_off0000a03b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA03B 10364 bytes
SHA-256: ff3e95992c626ac23f53051f13ee7839e835a73a82f8c94e1c3e9b2619cbadd5

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