Malicious PDF — malware analysis report

Static analysis result for SHA-256 382ccd9c303487fc…

MALICIOUS

PDF

76.6 KB Created: 2021-04-16 21:37:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41ad26e4db5ae3cdb07dffa6da25096a SHA-1: 7be5bded03da5a1822dff845e757299ea0cefc5a SHA-256: 382ccd9c303487fc8d3c46e0568947066d1233f79ea96a9d8b66b78cb1e36dd4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to unclogging garbage disposals, which is highly suspicious given the file's malicious verdict. It embeds a URL pointing to 'botokaw.ru', likely intended to redirect the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/strik?utm_term=unclog+garbage+disposal+double+sink
    • http://tifoxikutawe.sportsontheweb.net/bardo_thodol_portugus.pdf
    • http://naturebiolog.fun/durokigopuray8tts.pdf
    • http://palopej.sportsontheweb.net/html_codes_sinhala.pdf
    • http://trenolgia.buzz/36111355055pssn1.pdf
    • http://ferategaj.scienceontheweb.net/67994134050.pdf
    • http://fodefon.getenjoyment.net/avpu_scale.pdf
    • http://lidlid.xyz/kuporuxolrwvin.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://02796127-04ec-4c85-b270-c6f7310ebb18.filesusr.com/ugd/ce0e6d_e13ef21a560543fda6c55e8b06331235.pdf?index=true
    • https://uploads.strikinglycdn.com/files/17a0ce82-7053-4dc9-bd74-5cc329218bfe/best_buy_cordless_phones_without_answering_machine.pdf
    • https://uploads.strikinglycdn.com/files/8827084d-472e-48e9-b16d-a083b7c8d695/how_long_can_it_take_to_learn_arabic.pdf
    • https://uploads.strikinglycdn.com/files/29cc91e8-fbcb-4c5c-ba4f-8498ff1b78ca/83403848382.pdf
    • http://gaxilitexu.onlinewebshop.net/gizowewubowanamarivexu.pdf
    • https://2cc12256-1025-444a-bacb-901a9f007bda.filesusr.com/ugd/d1fcfc_90381a32ef594784b4e69e51c0bc0555.pdf?index=true
    • https://uploads.strikinglycdn.com/files/9c4c0993-36db-4e31-99c0-1a9b1bc8212a/gamopumamamegiv.pdf
    • https://944456f3-75eb-4cd6-bbfd-656b3713ada1.filesusr.com/ugd/2c8d66_b152d860be4045f2b5b3b2d76ec73094.pdf?index=true
    • https://uploads.strikinglycdn.com/files/badc6ae1-f217-4695-aeac-ccdacef650e7/what_is_the_reading_level_of_percy_jackson_books.pdf
    • https://uploads.strikinglycdn.com/files/49e7e3ba-a91f-4cb9-9e55-1ef739332918/88773506685.pdf
    • https://f9a132f0-acc9-4761-b7d8-38025aedd849.filesusr.com/ugd/5c71d6_e65bcbad6f004b8b8aab8bb60ce40820.pdf?index=true
    • https://uploads.strikinglycdn.com/files/689e5da4-84b2-4007-933e-26b626215003/tufex.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed46.bin
62df8f280d617e1c01ef3783136fa3bafa78ad359d7501655e7e54befeb280ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED46 5436 bytes
font_01_sfnt_off0000ffcf.bin
d1bedcf3e7411a0a1cc045d07d8afff56613eac0f4e1a07a3803c54e8c5c2e20		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFCF 10932 bytes

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