Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afe5a74c8a3eff8…

MALICIOUS

PDF

58.2 KB Created: 2020-10-23 05:46:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 6fdaab4d6eee4a4ff67aafd3f5c17471 SHA-1: ad1fc311012c0dec0222e494fc2f3205cd53c390 SHA-256: 4afe5a74c8a3eff812f6b866cb34d36f906e4c1a0894b0094f0cef7b9e4e1267
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/wb?keyword=skripsi%20korelasi%20pgsd%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379612/normal_5f92002aacec2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369182/normal_5f8d67db9a370.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8d872b2b237.pdfIn PDF document text
    • https://rojusonevupa.weebly.com/uploads/1/3/0/8/130814232/pajiveluz-befoxofo.pdfIn PDF document text
    • https://gonoloxezejuje.weebly.com/uploads/1/3/1/4/131410007/kasaxepudalafu.pdfIn PDF document text
    • https://wegotutitupal.weebly.com/uploads/1/3/1/4/131453182/d415b.pdfIn PDF document text
    • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/5058122.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/wuferotuliguxag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f892983285ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_5f8db905021a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383475/normal_5f8e08c554294.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vexeliku/58538506733.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/jama_evidence_based_medicine.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/castrol_edge_10w60.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/fapepelipozoxamoger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/secondary_math_2_module_6_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1617/7832/files/53534890355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1188/1136/files/baldurs_gate_enhanced_edition_mage_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4634/1270/files/depuliz.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_off0000a6ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6ED 5376 bytes
SHA-256: 71654609fced2d12d51e61d53230228e0fd4e56ca9e0187c3fdc3b35c422868e
font_01_sfnt_off0000b93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB93D 10252 bytes
SHA-256: 93a8f4e898a0b87ae5a3d9c75d071faf52d57db7d9c2f9e0b4061aa5c1a5e7e4