Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3c979e62a163490…

MALICIOUS

PDF

45.6 KB Created: 2020-10-15 15:52:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: fc7bd377f60768b884dcb1e770e01482 SHA-1: 7bc2ffbbafd667c441bff3320857f18794677f0f SHA-256: d3c979e62a16349042f01a70b6a93802647260775d926b10a1d2803970be498a
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/123?keyword=assistant+production+manager+job+description+pdf In PDF document text
    • https://site-1037824.mozfiles.com/files/1037824/mipokelono.pdfIn PDF document text
    • https://site-1039959.mozfiles.com/files/1039959/saruginafozavemajasuxov.pdfIn PDF document text
    • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/4b201c87d.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/xatuxuz.pdfIn PDF document text
    • https://batagokefo.weebly.com/uploads/1/3/1/0/131070859/bozupidegara.pdfIn PDF document text
    • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/nezupamomuzav.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/zadod-dofozorugel.pdfIn PDF document text
    • https://site-1043491.mozfiles.com/files/1043491/fakefesudi.pdfIn PDF document text
    • https://site-1040135.mozfiles.com/files/1040135/42063445132.pdfIn PDF document text
    • https://site-1040262.mozfiles.com/files/1040262/sugam.pdfIn PDF document text
    • https://site-1037207.mozfiles.com/files/1037207/funoponovonagugar.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/9b924f.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/9649549.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f8706ed2bb2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366008/normal_5f877805a2bb9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7fffb114-2b4e-42b5-b11f-240b3d3398be/15403430649.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dda8a843-c867-437d-aebf-344ee19875c9/55571255945.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/141d63c6-aa20-4eee-8c71-7689a69a71d5/vifeda.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AC 5532 bytes
SHA-256: 969499f2e059e492a448738eddb73a76f2dab520bd3a9c8fcc7925fe34d59967
font_01_sfnt_off00007957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7957 9748 bytes
SHA-256: 768a89434376050ae958c5f77dc8b1fb8b8c2aceeadc6dd0d416b645b8cfb41b
font_02_sfnt_off00009a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A9D 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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