Malicious PDF — malware analysis report

Static analysis result for SHA-256 288494d6c0976d9e…

MALICIOUS

PDF

42.6 KB Created: 2020-10-15 19:17:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 8bf8f89851b61ca7b4f7593def0e99ed SHA-1: 69a16e41ab09beff256f6dfc3994bdd4b42b2a96 SHA-256: 288494d6c0976d9e5c3baa166ed4c79cd15f625246a5095e1e145cef8bc9ca72
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/123?keyword=head+full+of+ghosts+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f876a115642f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5f885cf45a70e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365570/normal_5f87b410e1025.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f874ab955c67.pdfIn PDF document text
    • https://site-1038358.mozfiles.com/files/1038358/14756867341.pdfIn PDF document text
    • https://site-1045368.mozfiles.com/files/1045368/dikomudomafiluzo.pdfIn PDF document text
    • https://site-1043559.mozfiles.com/files/1043559/38162777279.pdfIn PDF document text
    • https://site-1040396.mozfiles.com/files/1040396/88498907781.pdfIn PDF document text
    • https://site-1042018.mozfiles.com/files/1042018/91292863348.pdfIn PDF document text
    • https://site-1041694.mozfiles.com/files/1041694/25966603673.pdfIn PDF document text
    • https://site-1039804.mozfiles.com/files/1039804/boxebogufif.pdfIn PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/pesegisekojen.pdfIn PDF document text
    • https://tikedamo.weebly.com/uploads/1/3/1/4/131453682/fenubafe_buvelebepujixex.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/56a67b6c8a.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/cb4cc880-8eb8-44de-a988-3adf4e5b247c/42837948244.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31661532-9b94-4a0f-a089-1a03f35c56a2/29927960099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2814777-5a02-49a9-822a-17a3d28990da/99270327811.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddf392fc-3c57-4397-a589-4230b5dbc00c/xulekilefusidaxati.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe9f2b1a-1f84-4a39-b63d-bb6e9bc910d3/27071130270.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5448455e-af7e-4caa-8aed-a54b9d982566/28796471705.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68dc3d04-cead-48bc-8f93-361fab92028a/fujitan.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_off000068bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BF 5168 bytes
SHA-256: 49538df7eeece1f3f733b359242b65ea344608b296013391a2950987f763b136
font_01_sfnt_off00007a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A53 10252 bytes
SHA-256: 7d7f1b724d936acc235a3669138226b5526172068d43f22e128ea6790b533c2a

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