Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd70b39f1e57c5d7…

MALICIOUS

PDF

53.9 KB Created: 2020-10-18 14:31:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: cd8f0ea892d679e32f8a3f30d10fa1d5 SHA-1: f1b6227081888213359e5ff00da645e08bf4d82f SHA-256: cd70b39f1e57c5d7bd0d8116f11f0cd00779c87c4daa7c6f55f311a7bf91ad71
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://ttraff.cc/123?keyword=android+mobile+recycle+bin+app+download In PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/5253858.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/digokasawuj-jipamuputevuf.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/jabedu.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/sokilijaw.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/278442.pdfIn PDF document text
    • https://waniremupamed.weebly.com/uploads/1/3/1/4/131407535/motugilelil_nuruzakinud_wogifemom.pdfIn PDF document text
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/4863d50e.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/laresisif_kigadebokenub_bajutinerid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f87c672a86e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f87061e80e9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370555/normal_5f8a19dfdd76f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366407/normal_5f88b0af4cfcc.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/1261948.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/9499402.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/913a3.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/b5730623488af.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/1058774d-9d63-4fb5-970c-bf0cc49dbb46/94246356397.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1ab83eb-3e4b-43bd-8bab-e7267708413f/90262185075.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcc68023-9bf2-4627-a128-8a03c8bf5945/85680625702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6b44e2f-7cd5-446c-b281-50eed91237ae/tawefibemapolev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bf52594-63b4-4a3c-b02e-35983d6018a6/28519139191.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_off0000935e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x935E 5364 bytes
SHA-256: aa2a547fd2571d3de3820bae29f3a8e33e27ee0c4ed7ece52be8be1a947909e5
font_01_sfnt_off0000a58c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA58C 10616 bytes
SHA-256: 43ea57a6c7acbadc776417f6e7c812c1d860d5181e0678df33f49e20fdf47922

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