Malicious PDF — malware analysis report

Static analysis result for SHA-256 494e06bc8f42f4cd…

MALICIOUS

PDF

70.0 KB Created: 2021-03-09 04:08:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 528b528a5e3026e09ac2164c075355fe SHA-1: e3ed57da615495827275d57c2133f86f604c2893 SHA-256: 494e06bc8f42f4cd27bc68fcf58c20906e5f5f0d2624e7ab9dfb675f61378017
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://dugedepap.ru/wix?keyword=fungi+coloring+worksheet+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426267/normal_603ad4f6d95c0.pdfIn PDF document text
    • http://mapugukabazewu.scienceontheweb.net/melofomatusabow.pdfIn PDF document text
    • http://20970907.net/653098329663yjsa.pdfIn PDF document text
    • http://4d-5d.com/demon_hunter_power_leveling_guidewuy0p.pdfIn PDF document text
    • http://leon-stavki.info/690561000513ucby.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477181/normal_5ff140ebe5d77.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/fukomudokozefexinivunibuj.pdfIn PDF document text
    • http://form-lnstagramcopyrightservices.com/671890523016t8vr.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/12838b1b-39f4-44c5-ac9f-e63615c60b2e/23196218060.pdfIn PDF document text
    • http://sibubixusa.epizy.com/gettysburg_address_text_dependent_questions_answers.pdfIn PDF document text
    • http://fonenutekosut.epizy.com/68144319780.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b27746f-7e0f-43df-bf65-47d01b7e05d6/1189657077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abb226d4-37be-42e6-9398-c8e8de129e61/bafugerurufakakoxomudi.pdfIn PDF document text
    • http://misanedajog.myartsonline.com/how_much_is_a_pulse_oximeter_at_cvs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6084572e-d273-44e9-b66e-8e85422a11ff/vofirogejud.pdfIn PDF document text
    • http://xipanizi.myartsonline.com/zukidob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ed9d05d-c675-4403-951d-9f3061ee92bc/diy_fitted_face_mask_with_filter_pocket_pattern.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39c743cd-a1fd-402d-ab72-c59c382e89ed/ravenupapibilizu.pdfIn PDF document text
    • http://keputeka.epizy.com/83990550487.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7edf0bbd-58b5-44e4-af4d-e7efa62fef00/30700549254.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/english_speaking_classes_near_me_with_fees.pdfIn PDF document text
    • http://lugopupi.rf.gd/telugu_bible_file.pdfIn PDF document text
    • http://dujizadixupodur.epizy.com/37650846400.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_off0000d6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CE 5064 bytes
SHA-256: f8d9ea4420b20e4b7a0d586da263838e2c95fe1feaf810e43eca8b2109738486
font_01_sfnt_off0000e82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82B 10132 bytes
SHA-256: cb2a0cc9199c212570d2a0422bce2c605437e98e3629b790c5882b7d89f0b4f7

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