Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc97a7434107e4ea…

MALICIOUS

PDF

45.2 KB Created: 2020-10-15 17:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 032a65fbfda63bbf5f80ffa73d7b7400 SHA-1: 5acb8e29b9ac8d255037e132810c1bd43a5853a8 SHA-256: dc97a7434107e4ea5b37d4008628001f6d527b70c89ff4dc5c545167346e1cce
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=pixomatic+pro+full+apk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5f885f7657f87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5f88492ed046b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_5f87a6b7a5f41.pdfIn PDF document text
    • https://site-1038451.mozfiles.com/files/1038451/jozebiguxafiwutositad.pdfIn PDF document text
    • https://site-1038326.mozfiles.com/files/1038326/rugufutegefowi.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/roxebixa.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/b4b3eb38b.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/5830356.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/9510144.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/9031774.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/zuvekazabuz-topofelo-gupolekodojavo-ponabiloxe.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/9247351.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/93049f265a0000.pdfIn PDF document text
    • https://lokixesope.weebly.com/uploads/1/3/1/6/131607163/887661.pdfIn PDF document text
    • https://pobezewimo.weebly.com/uploads/1/3/2/6/132681951/87841b.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/1/0440/8583/7989/files/dental_caries_indices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9773/9430/files/thnh_ph_hoa_lin_i_loan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4139/0492/files/42846756161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9987/3187/files/10596876642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4453/1107/files/dirty_valentine_meme_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/4055/9263/files/my_last_duchess_summary_line_by_line.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_off000071a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A2 5116 bytes
SHA-256: 986ce6dcffd5e462abf00fbee4d4dc2a307f9d15ee8d86f9feacd6abcc496f13
font_01_sfnt_off000082fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82FA 11140 bytes
SHA-256: c33cf92aad9f36d92a50bd3246e2a63200c2980bc89fecd423f9f3636d847d5d

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