Malicious PDF — malware analysis report

Static analysis result for SHA-256 be371377a08cb0a4…

MALICIOUS

PDF

76.0 KB Created: 2021-03-19 07:01:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80b5e85299cb663e656619dba63ad53a SHA-1: 534f3146e4f676558e84f40d142097bcf4f99d7d SHA-256: be371377a08cb0a4367f81e3910778e592a37c60bbf222eaa8fff764a89b2607
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing page disguised as information about bullying. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest this document is designed to trick users into visiting a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/award?keyword=bullying+facts+pdf
    • http://bapitafi.22web.org/10687026584.pdf
    • https://cdn-cms.f-static.net/uploads/4470678/normal_602e03a8ddef5.pdf
    • http://baliferifopiz.mypressonline.com/vimujirolajopovobopefovu.pdf
    • https://cdn-cms.f-static.net/uploads/4392210/normal_60263499b26e5.pdf
    • http://javaxirivibewi.mygamesonline.org/dipylidium_caninum_morfologia.pdf
    • http://jekefidaz.mygamesonline.org/esv_hear_the_word_audio_bible_free_download.pdf
    • https://static.s123-cdn-static.com/uploads/4369766/normal_5fcacadccce6f.pdf
    • http://gazajujana.mygamesonline.org/what_boots_are_authorized_in_the_army.pdf
    • http://litifafoj.iblogger.org/how_many_sentences_should_be_in_a_paragraph_apa.pdf
    • http://morasuxod.getenjoyment.net/district_wise_population_maharashtra_census_2020.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://329f26c8-0235-4118-8622-173d264d9cf1.filesusr.com/ugd/221f3a_a46141f1ad7b44d598e887b68578e925.pdf?index=true
    • http://betesemimototi.rf.gd/71111434597.pdf
    • https://uploads.strikinglycdn.com/files/fd8834fe-8de3-4cd6-887c-b7c98a2ee8d4/whats_the_difference_between_roomba_670_and_675.pdf
    • https://b1f0a730-f0e4-4bcf-918d-a915077b90d0.filesusr.com/ugd/a7c69d_40d6f154cdae4522ad1fa49cf014c888.pdf?index=true
    • http://tafiwepamubov.atwebpages.com/24662134540.pdf
    • https://e055bcc9-c4f1-4c6c-8dcb-0912bf54750f.filesusr.com/ugd/b4a829_f93fc493f7a440168381eae0d8e86f52.pdf?index=true
    • http://pijosufun.myartsonline.com/45464983953.pdf
    • https://uploads.strikinglycdn.com/files/5324e3e5-e657-4673-ae78-3b10d2bdb89a/what_is_the_best_diagnostic_tool_for_cars.pdf
    • http://matewedidoxeber.onlinewebshop.net/que_se_necesita_para_hacer_traspaso_de_una_moto.pdf
    • https://uploads.strikinglycdn.com/files/33d3e5d6-86ca-4962-a938-b28dcfbdc2db/basic_crochet_stitches_uk_diagram.pdf
    • http://vupikefugogulup.epizy.com/15474561904.pdf
    • https://uploads.strikinglycdn.com/files/85fa19da-a848-4bda-ade3-55fdb74b2d1c/jackie_chan_around_the_world_in_80_days_full_movie.pdf
    • https://uploads.strikinglycdn.com/files/339d4928-b51a-47ca-bf84-1f235fb934f2/85065083188.pdf
    • https://e05653fc-386e-4c8b-889d-738aee72c63e.filesusr.com/ugd/62421a_35f4c0f539b645b8bb8d9183da363fed.pdf?index=true
    • 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_off0000eb2b.bin
f65475ffa07c21ff3521ebcd73e91168876c548973dadf56218214fb3d7ac9cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2B 5376 bytes
font_01_sfnt_off0000fda0.bin
7a0f112534a7a8445fda6d8d9b0be19256ebd7364f472ea273eb76520744d0e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA0 10420 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.