Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d736fe009a83ffd…

MALICIOUS

PDF

39.5 KB Created: 2020-11-03 20:17:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: bbbd4447a144ce25eb938af18e1e7a0e SHA-1: e052df088cf4348af94d7b4f0d414c6f3aa0d8ee SHA-256: 3d736fe009a83ffdacbc3b67f4561f63c953ed529d41bad90a8b76ca3750183a
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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/aws?keyword=sextant+definition+dental In PDF document text
    • https://nusokusin.weebly.com/uploads/1/3/4/3/134350978/2b425b06360.pdfIn PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/6502977.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f8750ee9ccbf.pdfIn PDF document text
    • https://jijelejo.weebly.com/uploads/1/3/4/5/134590633/9788755.pdfIn PDF document text
    • https://junaxukag.weebly.com/uploads/1/3/4/4/134493834/suzololubulotize.pdfIn PDF document text
    • https://xexogabowagub.weebly.com/uploads/1/3/4/4/134438270/rezuvuku_jupukidisob.pdfIn PDF document text
    • https://defelidiko.weebly.com/uploads/1/3/1/0/131070982/medifuje_fuwem_xanututo_tinetifokil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387713/normal_5fa15fe050c6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_5f9d99019a678.pdfIn PDF document text
    • https://vumusubivabup.weebly.com/uploads/1/3/4/4/134491869/xofubonolip-nikivigozoxofuk-jujajeborusexe-nobuxawazazapu.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/7a7ab765-3d4b-422d-b6b3-c8eb820a4be0/zekimixunaxinew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1aa3e8f1-926f-4a8d-8139-411e8caf82e3/79894949806.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/react_cannot_read_property_of_undefined_onclick.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/324864e1-5f3b-4ab8-9650-10e91a39f7cf/tapakosek.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_off00005cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF4 4796 bytes
SHA-256: 0832d91923077b3195eb6d6f29d5e015ba16d1a6adc731beaf154b865bf80344
font_01_sfnt_off00006d5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5F 10472 bytes
SHA-256: 05d0c0be44a3076d00222f2f08ef6a63198aa80c84d4da35a59c5c78744b6c6a