Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1eedd7a408da5ea…

MALICIOUS

PDF

79.7 KB Created: 2021-03-22 00:19:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 93a540927ef3abe418b2597a2ab96b5a SHA-1: 92c5ad60ab66452189672be4ecc56c28221341ed SHA-256: b1eedd7a408da5ea57bded81deca295f10f633c830ef88d2e3c281693147865f
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xajibur.ru/award?keyword=tranvias+amsterdam+mapa+pdf PDF link annotation
    • http://tepugorotewole.medianewsonline.com/lalji_prasad_differential_calculus_download.pdfIn PDF document text
    • http://pusewuvi.medianewsonline.com/zanas.pdfIn PDF document text
    • http://kimisorunutom.medianewsonline.com/asrb_net_syllabus_2020.pdfIn PDF document text
    • http://wivuperafuzo.mypressonline.com/revomuvot.pdfIn PDF document text
    • http://kusulapezep.iblogger.org/kegevibupukanewozo.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/how_old_is_google_maps_street_view.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wavexijazibivat.myartsonline.com/zumakotuxibubofelaranape.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/toloxelenul.pdfIn PDF document text
    • http://kuzemepusiloj.onlinewebshop.net/calculus_and_its_applications.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/37335949053.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/through_the_looking_glass_1976.pdfIn PDF document text
    • http://ralirajuz.atwebpages.com/bemeluvovozoxewiposokelow.pdfIn PDF document text
    • http://luzojora.atwebpages.com/nutrition_books_for_bodybuilding.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/mobazaruf.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/the_cider_house_rules_book_quotes_with_page_numbers.pdfIn PDF document text
    • http://guligovidafijew.rf.gd/python_learning_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/lavovikegopapisos.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/40280593782.pdfIn PDF document text
    • http://rojapamun.epizy.com/93480365950.pdfIn PDF document text
    • http://bisidajidosetuj.rf.gd/wojibivelexofevulosi.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/what_is_difference_between_gdp_and_per_capita_income.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA0D 4840 bytes
SHA-256: c9c03d048d0f63321ea3803d82e79e973f5c701d8f0dd70955dcbebc70b43834
font_01_sfnt_off0000fa5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5D 12208 bytes
SHA-256: 192f457602c499842ff644f2ded1154e0d151ba7f7587388efc2bc279415cd0a
font_02_sfnt_off00012231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12231 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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