Malicious PDF — malware analysis report

Static analysis result for SHA-256 e93491c0ad295e58…

MALICIOUS

PDF

44.1 KB Created: 2020-10-31 07:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d6e5f6dce5a0732a000b9ed7b246ede3 SHA-1: b16b6d586667bdc327da497ea40bee64cf1fd145 SHA-256: e93491c0ad295e5811357d1e57c3c37b9111f2273e6531921961a7fa8067bbeb
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/pify?keyword=best+az-103+study+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4405899/normal_5f9271553db10.pdfIn PDF document text
    • https://rukinedofixod.weebly.com/uploads/1/3/4/3/134348838/kataxegijaxagexuju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371814/normal_5f8e17f6a9cfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383165/normal_5f910d05f169f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419451/normal_5f97966a7959a.pdfIn PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/1841752.pdfIn PDF document text
    • https://joleziravakejar.weebly.com/uploads/1/3/4/4/134460301/fazogotodelunete.pdfIn PDF document text
    • https://direvegafazago.weebly.com/uploads/1/3/4/4/134491376/tenazimufopatupuri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375885/normal_5f8ddbefade1e.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/palaj_xofepevez.pdfIn PDF document text
    • https://dijumigomeruke.weebly.com/uploads/1/3/4/3/134309809/363869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_5f8c697003c9c.pdfIn PDF document text
    • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/vusewekamoda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367912/normal_5f8fec3c3e4dc.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/1/0494/4166/9279/files/vuketinusedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/7156/0616/files/tagojapawifevurigolajufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1020/2013/files/intoxicacion_por_oxido_nitrico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4446/1467/files/8299810741.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_off000069ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CA 5456 bytes
SHA-256: 8b046947e73b0522cc20b94679cdfd39c2eebaf2085cb229425bd9d175f76a74
font_01_sfnt_off00007c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8D 11504 bytes
SHA-256: ca5d3b0c49828a4264814baf2c9ee272197107edca440b692a1d3f549596f81a

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