Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fbd5842a6c2e6b6…

MALICIOUS

PDF

67.5 KB Created: 2021-03-06 06:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f739bbb31de25eb423af578a2b106d5e SHA-1: f05d4f68990d04290544ed8f70f91706888d86c5 SHA-256: 2fbd5842a6c2e6b6abe9b041ca23ac145694eade561a76eba1cbfeb6db0ef82d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/award?keyword=soundlogic+xt+harmonix+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408462/normal_5ffcd3e646c6f.pdfIn PDF document text
    • http://rakadan.sportsontheweb.net/94066737764.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473656/normal_6000a39a4712b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387590/normal_600af2054dcce.pdfIn PDF document text
    • http://newberginvestmentproperty.com/the_girl_with_the_dragon_tattoo_2009_moviebxy87.pdfIn PDF document text
    • http://raicen.com/51637738037mehel.pdfIn PDF document text
    • http://reduslim-shopufficiale.site/bio_data_format_for_marriage_download98vb5.pdfIn PDF document text
    • http://witikotuxigere.scienceontheweb.net/jomewili.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/bf043fb2-d7f2-44ba-8972-75aff342107e/how_many_users_can_you_have_on_adobe_acrobat_pro_dc.pdfIn PDF document text
    • http://xafibejijopo.atwebpages.com/highest_corn_yield_per_acre.pdfIn PDF document text
    • https://41d9b059-0b17-466b-96e6-f31a3f3e9b19.filesusr.com/ugd/f1ead9_205299d1b1aa4cff9080edafcf3c5ae6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba387b94-217c-43c4-8493-d0916ced4625/rosixowofuriluxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/202e1e3a-d520-433d-9bbc-02cdbc3f33c4/are_any_planet_fitness_open_near_me.pdfIn PDF document text
    • https://b01cffea-7a05-49e8-9781-04202a21c04b.filesusr.com/ugd/d5d855_b287996cf9b343dab59a664114bda467.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ea89ef7-4713-4a4f-aeef-7ffbb32ee39a/pejipurefo.pdfIn PDF document text
    • https://01dc7cc6-b8ed-446e-8cc8-1ad78882ed38.filesusr.com/ugd/e23fbb_a6bebe10276f43a486a3a65c94b67195.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/369555a2-5aa5-4dae-b154-64b4f14e2c0f/80393656644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2739b62-ee94-4c42-847d-5745396af640/how_to_fight_against_parental_alienation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a175e55f-077e-4333-9e40-de97a09fc7ea/xuroxoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65342009-78d2-462e-94fd-f2253dfc48b2/28685850887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5317358d-8f25-441d-a45a-5e9372b389df/muvini.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_off0000c8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FE 5496 bytes
SHA-256: b65a06a4929ea06fcce848adf12ba9603206c4f2443af754ab99e0cfc70bef3b
font_01_sfnt_off0000db98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB98 10344 bytes
SHA-256: e93296287825438b85c34876140616bafe99ec4b0241a721ede5644ed89c7ed5

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