Malicious PDF — malware analysis report

Static analysis result for SHA-256 949d337f1c3abf64…

MALICIOUS

PDF

43.9 KB Created: 2020-10-12 02:30:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-10
MD5: 792e3f860afceb1b1bb30e8c31acc123 SHA-1: f36293d00dab2fca27ae39aaf133e93c7397d7c7 SHA-256: 949d337f1c3abf642ac419a848c8759e4bb68537ad3e82b3f75e4be63793bdb7
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://ggtraff.ru/strik?keyword=penthouse+forum+variations In PDF document text
    • http://files.marissaqian.com/uploads/1/3/1/8/131856076/tabegolofa_gutonuzan.pdfIn PDF document text
    • http://files.wils-gamma.com/uploads/1/3/0/8/130874350/bofobasefana.pdfIn PDF document text
    • http://files.authorchrishumphreys.com/uploads/1/3/1/3/131381991/461431.pdfIn PDF document text
    • http://fizena.militoa.org/uploads/1/3/0/8/130813784/204049.pdfIn PDF document text
    • http://files.1travelshop.com/uploads/1/3/1/3/131384583/fe3c2276f78487b.pdfIn PDF document text
    • http://files.chzaz.com/uploads/1/3/0/7/130776519/vutowu.pdfIn PDF document text
    • http://wufesoxog.greenhousewivesbathco.com/uploads/1/3/1/4/131410399/vawege.pdfIn PDF document text
    • http://loseperez.javiermanriqueart.com/uploads/1/3/1/1/131163599/xazalurek_zenatesabef.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006d16.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006d16.bin)
    • https://uploads.strikinglycdn.com/files/b10f60f5-6744-44e6-a8f9-483d97ee5f91/6037986603.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0062594e-faf3-4e25-a804-8aba86bed9d0/ruzog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68afceba-7801-4685-a7ee-333c83b402ee/58371273264.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92b55241-7777-4ff1-a521-00aefd0bd61c/garufolanaxofatukeka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0e04892-1e94-42af-9d8b-be8cec8c8a59/xaxuvodepuzevudimupafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3628/5860/files/merixabapuxulaxota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5247/files/88260617130.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_off00006d16.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D16 5036 bytes
SHA-256: 37afdf824e012420fe70df2a91633b3f1c356f6b9bed24e4f5f4ce3d16476e32
font_01_sfnt_off00007e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 10840 bytes
SHA-256: 1ea48705feab459b7836e493090e023eb0f240a99a5504539f2e97b22dd2ec3f