Malicious PDF — malware analysis report

Static analysis result for SHA-256 570e911ae7a552b3…

MALICIOUS

PDF

70.9 KB Created: 2021-03-06 08:45:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 16e1ff7d54ea8bea5e0471536cf1f32f SHA-1: d984c06d76f836efbe225b19ef417edae07f133a SHA-256: 570e911ae7a552b37a1f19e7c45753f42f290e57a0f1bd575f245ef911608d98
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://nipisod.ru/award?keyword=comcast+dvr+phone+app PDF link annotation
    • http://nukicew.xyz/sony_acid_pro_7_key_generator_downlo4w2uz.pdfIn PDF document text
    • http://allroadkamchatka.ru/navy_seal_training_program_redditpvg2m.pdfIn PDF document text
    • https://rurezakofone.weebly.com/uploads/1/3/1/1/131163981/fotim.pdfIn PDF document text
    • https://cdn.sqhk.co/zijigemeworu/hcmvidX/opera_mini_fast_web_browser_apk_download_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/baxewoxevum/jjshb8U/monkey_wrench_smokehouse.pdfIn PDF document text
    • https://cdn.sqhk.co/muzolorakow/Pidjcjb/karetibifaworumelikofamip.pdfIn PDF document text
    • http://lovelyhouse.online/62485427999rh426.pdfIn PDF document text
    • https://cdn.sqhk.co/zenegiwowi/U9idhhf/ikea_living_room_furniture_inspiration.pdfIn PDF document text
    • https://sajipetifejej.weebly.com/uploads/1/3/4/8/134883768/sirukibevufej.pdfIn PDF document text
    • http://help-business-media.com/hindustan_unilever_products_price_list_inj9gbx.pdfIn PDF document text
    • http://amsidgi.xyz/mosogikimama6fj7l.pdfIn PDF document text
    • https://cdn.sqhk.co/gevagedubop/kN2OhhG/cut_it_out_meaning_in_bengali.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://599b09cd-7b6a-4758-94a3-08a08d316165.filesusr.com/ugd/628a76_84bb660f2be04a2296b4e9c9803517f5.pdf?index=trueIn PDF document text
    • https://b3d988c2-7a7d-4c3c-9141-221b6550481e.filesusr.com/ugd/9dda13_38a71ccfa03044d29adfa1c8dfd48477.pdf?index=trueIn PDF document text
    • https://6e7ef639-f89a-4701-86f9-710a836f1183.filesusr.com/ugd/12745a_0f370d1bf8744bbda34fc707779144fb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/2650804121.pdfIn PDF document text
    • https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_1759a0b096dd4207844bf1200c6a2b49.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/how_to_clean_breathe_fresh_air_purifier.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/jazetivope.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/kikekekanujo.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/samagubovusu.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/88691998176.pdfIn PDF document text
    • https://307a23dc-bb60-4906-9a68-69e45957aa19.filesusr.com/ugd/d2057d_a9ae6138c1774ba5bb607da7ef01ed8e.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_off0000db55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB55 5248 bytes
SHA-256: 208f57fe6567d02668a029321da2b06cc5e2abcfb795c36f514eeefe73593fe9
font_01_sfnt_off0000ed00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED00 9756 bytes
SHA-256: 020e01e95f85fdce1151c13c0aba03edbf6ee94c7421d6847f0e40ad86bd7929

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