Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ca4ee792b62244…

MALICIOUS

PDF

66.6 KB Created: 2021-03-10 23:40:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ed6b59f14379cac67b4b8147ac4b72d4 SHA-1: 192d9064e2694d7558611dc16e10eec3a4601c88 SHA-256: e3ca4ee792b62244085503a2bf635556492c1ae8e4f1bc536eed7d4a881e6517
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://xezojetit.ru/award?keyword=chemistry+textbook+pdf+holt PDF link annotation
    • https://musokuvezuref.weebly.com/uploads/1/3/1/8/131871850/a3f6632db3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421329/normal_6019a1a8ddd94.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/hidden_city_cheats_for_pcdn3fp.pdfIn PDF document text
    • https://tipozuroboga.weebly.com/uploads/1/3/4/2/134265922/2776889.pdfIn PDF document text
    • https://sizokagijabid.weebly.com/uploads/1/3/4/6/134652394/kudikalodur-nasavuladewovu-lijivetuxerup-xadujegegibev.pdfIn PDF document text
    • https://baduzasozem.weebly.com/uploads/1/3/1/4/131407439/a57deb6ef127ba1.pdfIn PDF document text
    • http://aazzzry.space/disney_plus_login_issues_vpnnaqig.pdfIn PDF document text
    • http://lozhobelir.space/fowigateriwufokobitutevaduf74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484624/normal_60315c9249b19.pdfIn PDF document text
    • http://goproonly.com/importance_of_swot_analysis_in_marketing_planjpx5t.pdfIn PDF document text
    • http://instapriz.online/29084394783ivirl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387581/normal_5fdf90c99a3f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4c6480a9-ccec-4c20-853c-cc48681c44ad.filesusr.com/ugd/935adc_153657f7c03642079d0d297cd1e514f1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ba4a1cc-f476-4af1-87d5-a9d98982d53a/voluzajikabilam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8c8dc28-97b0-4757-acd1-2709f6065e8b/shoot_em_up_full_movie_2007_trailer.pdfIn PDF document text
    • https://ac4cd5cf-e861-4b1b-a585-e47049f737a6.filesusr.com/ugd/843280_913e867c1fe74975bb9b13d9bf4f2a84.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d750a4ab-e0be-4ec0-833b-0d7c185c5eba/casio_g-shock_g-7900a-7er.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b0c7e24-8ad5-41f2-8ae4-569c890742fd/98008300994.pdfIn PDF document text
    • https://12f7643e-9106-4823-89c2-0bdaecd1bc22.filesusr.com/ugd/1f6d71_baf1043b17bf47dab3320359df10a8b5.pdf?index=trueIn PDF document text
    • https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_b87fa48cc1e6433585ca61e6d01eb2e5.pdf?index=trueIn PDF document text
    • https://0306adf0-382e-42f1-903d-71c3961c97f1.filesusr.com/ugd/7ff653_67c394b4cd584c3b8ec5b1a6afe0f1a7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c67da5b-3d2b-4b38-8f24-8badda5ced76/20872735878.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77e9130a-fe9d-4a64-a144-66ddb3d1dbdb/81571023590.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_off0000c70a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC70A 5348 bytes
SHA-256: b8c18823e4241ac6106174d8cfe92c3a43a6de172258d68439b47ddd03e6e89f
font_01_sfnt_off0000d913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD913 10388 bytes
SHA-256: 9a72d48626ed75ff814275f43b7e6124bff1e5092a6a59514b10149d82f07838