Malicious PDF — malware analysis report

Static analysis result for SHA-256 91cd24968d6f852a…

MALICIOUS

PDF

74.5 KB Created: 2021-03-01 10:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 266b6952571389a12fe54460c62c3d42 SHA-1: f3d697f82f32f027a55c92940998e520bc9de9bf SHA-256: 91cd24968d6f852a119acd9a64328e34f26ed2a64b6b8a3e2c75e607b9c8e659
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. No scripts were extracted, but the presence of the malicious URI and the overall detection profile strongly suggest a phishing attempt.

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://kuzutuzo.ru/aws?utm_term=serenity+prayer+tattoo+inner+arm PDF link annotation
    • http://alex-travel.moscow/jekinisakojaralikizome5u0.pdfIn PDF document text
    • https://cdn.sqhk.co/sirojenu/ifihqje/shogun_sushi_spokane.pdfIn PDF document text
    • http://fakts.design/strategic_advertising_management_4th_editionwcb3m.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/FjgFhd1/tobacco_mosaic_virus_definition_biology.pdfIn PDF document text
    • http://nat-yoga.space/37296194007teler.pdfIn PDF document text
    • http://dhl-order.info/dazelogukavuluzedkkwz0.pdfIn PDF document text
    • https://cdn.sqhk.co/pikevasoze/OhhRdgj/rivewerekifal.pdfIn PDF document text
    • http://zavodtriumf.com/chitrakoot_video_songs_ing8pucv.pdfIn PDF document text
    • http://stixlife.info/pejonunavatejo2uilx.pdfIn PDF document text
    • https://cdn.sqhk.co/vitikitema/iiejaU5/33090647124.pdfIn PDF document text
    • http://xafesuvorolivig.scienceontheweb.net/89903349328.pdfIn PDF document text
    • http://fredo.run/69239551963hsgmh.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/the_sense_of_an_ending_movie_free_download.pdfIn PDF document text
    • http://trujillostacoshop.com/any_further_information_to_support_your_application07ekw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vexabimumemig.atwebpages.com/47175433641.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/tinoronetojod.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/apsrtc_city_bus_live_tracker_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/12470464828.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/excel_sum_function_for_multiple_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/36237752945.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/assamese_new_video_song_2019_asomi._in.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/el_arbitraje_internacional_cuestiones_de_actualidad.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/13145168527.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/alvida_yaara_alvida_song_free.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_off0000ea6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6B 4960 bytes
SHA-256: 21f794ce224ef1b62a7f4dc0d613ad4a86080958c1197f32409b9eed14e3ee72
font_01_sfnt_off0000fb3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB3E 9692 bytes
SHA-256: 7b1fa92816bff8a2e1fb5c5534a71c21694ede91f89b3470dc2f02f3f6550a96

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