Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20eefb280f5ca12…

MALICIOUS

PDF

72.3 KB Created: 2021-03-08 14:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 917437646c3851d81e6afcd0b99d79f5 SHA-1: 90e1383102037bfd123dac88e6f6f6efb29d3f0e SHA-256: d20eefb280f5ca12286ed3f5587b8967748f03ee1d3fc53997d1fe9c6c948e12
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/award?keyword=abrasive+jet+machining+report+pdf PDF link annotation
    • https://cdn.sqhk.co/zudoputasafe/XKf23Xx/28347906004.pdfIn PDF document text
    • http://storedubai.shop/powenumifigowos1ubd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480393/normal_6011311fd0b46.pdfIn PDF document text
    • http://igcopyrightclient.com/how_do_you_write_a_high_school_history_essayw5zej.pdfIn PDF document text
    • https://gaparomid.weebly.com/uploads/1/3/4/6/134632142/bunapogiwajusegen.pdfIn PDF document text
    • https://cdn.sqhk.co/legezuseg/haHifie/the_master_of_knife_chapter_11.pdfIn PDF document text
    • https://riwusivi.weebly.com/uploads/1/3/4/9/134900433/12771a64942c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366324/normal_5fcf9b793b6aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380393/normal_5fdf68a4150ac.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/CgfjcB7/bluffton_university_baseball_field.pdfIn PDF document text
    • http://beststudent.space/android_10_galaxy_s9_plus_verizonl0vm6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381976/normal_6004e8dc32589.pdfIn PDF document text
    • http://clipshd.design/53840954012t4czn.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/1ghechb/88379633675.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://72a23b54-95c1-47c0-80d6-f7b1310faeb8.filesusr.com/ugd/65b209_e56a7e6402c9437886253e01ad13263a.pdf?index=trueIn PDF document text
    • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_7dffd358af16405a8ae2ee413b88e0cf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/92d8ecb8-34e3-4adb-8edd-75a197f4c8a2/how_to_make_residual_income_2020.pdfIn PDF document text
    • https://7f3dc8b3-869c-44c5-82eb-14ae88d57796.filesusr.com/ugd/dc4ca1_fc984c1e8fd04576af1e97c78a42b666.pdf?index=trueIn PDF document text
    • https://48b7024d-7414-4593-b44d-ed892b96ad15.filesusr.com/ugd/3e5db3_335d0b5b5353430084ec89c08ccb1e1b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/455727da-6328-4210-bf88-6a8b8feb6af7/star_wars_battlefront_2_age_of_rebellion_supremacy_maps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20a3c106-5a94-4c03-b9d0-0991fe740763/89587366115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19d66cd5-7a39-403f-ad8f-7777ba3b1521/68850579601.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_off0000dd40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD40 5800 bytes
SHA-256: 09932053410ba698e946ea9772c2673128fcbe60cb87da486c299e15d37a383e
font_01_sfnt_off0000f0e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E3 10256 bytes
SHA-256: 0afd10fd5346d970b108aa0beeda81bc0263cc9a2d94e1534c207554d22ee8d4

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