Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e811c87b3ed925…

MALICIOUS

PDF

72.0 KB Created: 2021-03-04 18:45:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7e9781d109f8841a18852364867e206d SHA-1: 46c2a404af0ee4546d35c868269dee27e0a43c6a SHA-256: 72e811c87b3ed9250b11c735055d10230a182584adc0e117973268f2eabe79d4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://resalured.ru/wix?keyword=ulrich+von+gradwitz PDF link annotation
    • https://ruwijupoxotafan.weebly.com/uploads/1/3/0/8/130814308/jebonuxuvoraw_xugewakegab_lemosa.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/kadirimovomenowirituvexi.pdfIn PDF document text
    • https://cdn.sqhk.co/losokifape/0d49pfT/sniper_gang_apparel_size_chart.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/dogukimavexo-jixutisuresox-josixozozirupuz.pdfIn PDF document text
    • http://zodatowafe.getenjoyment.net/herman_miller_aeron_chair_service_manual.pdfIn PDF document text
    • http://tranquils.space/video_editing_software_mac_free4dp3c.pdfIn PDF document text
    • http://leafester.online/dantes_inferno_2007_full_movieoa7vw.pdfIn PDF document text
    • http://skidki-day.shop/612976698792ol18.pdfIn PDF document text
    • https://cdn.sqhk.co/zugeketinog/STmSUji/skyblock_map_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wusakituzu/oggiecJ/bewodujepof.pdfIn PDF document text
    • https://worivoka.weebly.com/uploads/1/3/4/5/134588103/vurijiziluwexad-dodugetajogur-zowofowevevo.pdfIn PDF document text
    • http://martans.space/kodabaruduragemewenoxuzijphhqj.pdfIn PDF document text
    • https://xekanowodupap.weebly.com/uploads/1/3/0/7/130739303/popobeja-sojek-manew-nodemakujizu.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/eb14fab4-2168-4566-ae19-14eac75bd2da/papilonadub.pdfIn PDF document text
    • https://ca108e69-7b6b-43f0-8f16-d96ebeb8a33d.filesusr.com/ugd/79e0dc_5c9f61c26c0a4ee7a67e40bf34c7264c.pdf?index=trueIn PDF document text
    • https://636e06b3-920c-4898-b827-ef778bbbc101.filesusr.com/ugd/40512e_0a1fd98629374e58a1f3d1487693a8cc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1074cea-848b-4d44-95ba-99f5b8b74aa0/feliz_navidad_lyrics_and_chords_key_of_c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7dce955-7183-448f-a352-6c90e2fd587d/42123065122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ca98d72-d167-4353-847f-a6a978c34a6d/altered_carbon_season_2_episode_5_cast.pdfIn PDF document text
    • https://edb7bb8d-792a-4213-93ec-7f573d37cc74.filesusr.com/ugd/bfd504_25aba1a3fd1c4323bf1ce78aae0545d2.pdf?index=trueIn PDF document text
    • https://ac734925-007a-49fa-9a6b-2340142042ec.filesusr.com/ugd/ea78e0_589579190965486b9bbeaf57085d0756.pdf?index=trueIn PDF document text
    • https://5ccda086-29c7-4024-8a93-689df1f3b89c.filesusr.com/ugd/ed8107_06448b17bbfc4504af6ddbf20cf6226a.pdf?index=trueIn 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_off0000dbe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE6 5216 bytes
SHA-256: 559f7db56f02144985062b30e932de46b1faa323df472d9f880088c8ec06a2e5
font_01_sfnt_off0000edbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBD 11204 bytes
SHA-256: 608291242f7b2d38959d94cd7d4a7d55548d1f06030dcc1b110765cbff18c77c

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