Malicious PDF — malware analysis report

Static analysis result for SHA-256 476eaaae15904014…

MALICIOUS

PDF

71.5 KB Created: 2021-02-19 10:46:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7578e907f53de4d9c2152bc6fbf60dba SHA-1: 95fe2573d507eefa99e0c3378fbb25a29b6c6479 SHA-256: 476eaaae15904014185eb79dbc6eb594b88afb5a40a448c8c28f2dab99ad653e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=pbs+newshour+watergate+background+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/fekigimuzib/hjjEhcS/25427762687.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/idYibgi/flower_garden_by_me.pdfIn PDF document text
    • https://cdn.sqhk.co/pimupigedu/hghijaX/fezowawelidezedeba.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/esQhfjh/matrix_organizational_chart_template.pdfIn PDF document text
    • http://cmbespaceclient.xyz/87263550488e7vh8.pdfIn PDF document text
    • https://jojapewabivato.weebly.com/uploads/1/3/1/3/131379205/tafevozolevizes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466996/normal_601d3974ba325.pdfIn PDF document text
    • https://rejasujewefem.weebly.com/uploads/1/3/0/7/130738882/ebd214d.pdfIn PDF document text
    • http://megatorg.ru/36814547422ush3o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374002/normal_5ffeb50aafb84.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/UgeIgj3/lightroom_app_for_mac_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4528780/normal_601a206c9614e.pdfIn PDF document text
    • https://kaxogirigajel.weebly.com/uploads/1/3/4/6/134611066/82e86656918.pdfIn PDF document text
    • http://klosheff.xyz/2004_cadillac_deville_owners_manual9lcm4.pdfIn PDF document text
    • https://cdn.sqhk.co/zotiperugi/i7xNRk7/super_smash_bros_ultimate_daisy_bomber.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426277/normal_5fda24a79afad.pdfIn PDF document text
    • https://cdn.sqhk.co/fegukajebaj/Bhg9jj8/18074329965.pdfIn PDF document text
    • http://fashion-deals.xyz/endless_ducker_world_recordg6q4t.pdfIn PDF document text
    • https://tepewumulu.weebly.com/uploads/1/3/1/3/131384412/bd1082.pdfIn PDF document text
    • https://www.fordlibraryIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gobavaduxa.epizy.com/bksb_maths_initial_assessment_answers.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_off0000db16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB16 5468 bytes
SHA-256: 2d053f8b5e7dadbbfe8a9f02cdb4436ce7bb6be14fd96ac1453d957e3951e4ba
font_01_sfnt_off0000edb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB7 10124 bytes
SHA-256: 08a91c987dad229ee97207be88bc3c7201334674293210ceb9fec469da8a816f

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