Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e193f90be04428f…

MALICIOUS

PDF

68.5 KB Created: 2020-11-17 23:50:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 9678f3d09227f9df2b61519c31712559 SHA-1: f37459cd14d6b3cc95cd06d8aaa5566d94c91df5 SHA-256: 3e193f90be04428fa99d6e87f46a75171caa35ca51adf74c3b1ef4c967ea1b0f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffmen.ru/strik?utm_term=jason+mittell+television+and+america In PDF document text
    • https://vuxarujetununo.weebly.com/uploads/1/3/4/4/134437765/964b91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409610/normal_5faf88e7e277f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366620/normal_5f886a57512e0.pdfIn PDF document text
    • https://rurizurerenudiw.weebly.com/uploads/1/3/4/6/134649160/a92d1f6b0e5c.pdfIn PDF document text
    • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/7702792.pdfIn PDF document text
    • https://kisogegexene.weebly.com/uploads/1/3/4/3/134374262/903afa.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/3ae9a2fcd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381547/normal_5f911c767f8f9.pdfIn PDF document text
    • https://toziraza.weebly.com/uploads/1/3/4/5/134506396/zenakaku.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/26135da2-71cf-4f4c-b8c0-a4a62d1b653d/ccs_c_compiler_crack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/490c9690-8b3d-4c21-bf4a-247990edaa69/29693472499.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad79ed22-0c26-41d2-9f2e-0d6c9710b342/1116928235.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a25b871d-3bca-457e-9c87-05d4fe2574de/xomepixogisepob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62d947a1-ac25-4285-b56f-d947d599ce14/lets_summon_demons_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74e47b5e-4069-4209-a582-e307e16d7289/kevodolutodopudaribajut.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_off0000cedc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEDC 5136 bytes
SHA-256: 67386beeef8a3660f0411859c6a57c28988e47c96a324d21437e491dcc514883
font_01_sfnt_off0000e045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE045 10812 bytes
SHA-256: 4554a5e75c572244a16d543c898e13205dc55fc744f89c619f29fd88d5a3903e

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