Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4c12115ed62c4eb…

MALICIOUS

PDF

71.7 KB Created: 2021-03-07 21:37:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 40d58f50d44041ae8bc199e99bb57132 SHA-1: cc9df14194a6a5c01f4469f82f17361b8e9ae672 SHA-256: e4c12115ed62c4eb10b066e55ca42253221e25468b1557d3fa29ba6b2f59049e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/wix?keyword=ryobi+3x18+belt+sander+manual PDF link annotation
    • http://kazexajisodibu.medianewsonline.com/rijemawuw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451375/normal_5fcda573024ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465707/normal_60355faf3261c.pdfIn PDF document text
    • http://zajiledafalam.getenjoyment.net/attack_on_titan_recap_movie_2020_release_date.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459482/normal_6022ad9407ced.pdfIn PDF document text
    • http://mebevevi.mywebcommunity.org/41556211463.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488133/normal_5fcc60956bf0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500199/normal_5fe607ee4161b.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/fe394026-bb56-4e75-81a2-2595fe5246d7/will_the_harry_potter_movies_ever_be_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b77c2cf-1324-419d-ac23-c6ff19051f68/ejemplo_de_cv_para_trabajo.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/35835621839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96cb09b9-0ca5-495c-afde-3294772c6552/pawuzunamobu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3d701f6-1924-4989-884c-17d15ee27bd3/beowulf_film_online_subtitrat_in_romana_2016.pdfIn PDF document text
    • http://zilowovuv.atwebpages.com/what_is_a_full_service_grocery_store.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86fa60a2-36f3-409f-bc18-67b81d6ee838/netgear_switch_prosafe_plus_gs108e-300pes.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/dunowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4402b038-7486-45ae-9adf-cfb2ed5ed1fd/samsung_xpress_m2835dw_toner_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a56e63ae-c912-4c65-8ed1-3928ebcf503b/epson_1430_printer_for_sale.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_off0000d054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD054 5700 bytes
SHA-256: b0be9c48a473e0b6f3ba31b5044bfc3780067f1aefdf73c4d1c075d2a6c8f792
font_01_sfnt_off0000e3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B7 14340 bytes
SHA-256: d5c86dbe54f94c6994adda25a0c51a590dc10bad5628881de26d511ce8e8f2c0

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