Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaf06f919eb100c6…

MALICIOUS

PDF

82.4 KB Created: 2021-03-01 00:51:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: db1959283362db8350c87d04c7e1b4e9 SHA-1: 33bc131c5a756e5595cb7821727b0cb928a84e9a SHA-256: eaf06f919eb100c62ab10c7ecd9a9d0a7527f789278e80b38980982c5bc07240
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URI that directs users to a website offering a '2011 nissan titan repair manual'. This URL is likely a lure to download a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/wix?keyword=2011+nissan+titan+repair+manual PDF link annotation
    • http://frut-tree.site/whirlpool_stacked_washer_dryer_lowes6z934.pdfIn PDF document text
    • http://moshon.space/skyrim_racemenu_error_10f4jxd.pdfIn PDF document text
    • http://zodelem.mygamesonline.org/are_blood_pressure_monitors_in_drugstores_accurate.pdfIn PDF document text
    • http://help-copyrightservice.xyz/trinomio_cuadrado_perfecto_ejemplos8r58n.pdfIn PDF document text
    • http://kovatafob.mypressonline.com/35031569802.pdfIn PDF document text
    • http://harmony-market.ru/defining_popular_culturetp62l.pdfIn PDF document text
    • http://stalekost.site/the_rules_of_attraction_book_summarytnzu7.pdfIn PDF document text
    • http://komozazene.getenjoyment.net/how_to_confirm_interview_location.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/71702642304.pdfIn PDF document text
    • http://pannochki-art.com/third_price_auction_uniformkxns5.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/audacity_for_mac_m1.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/where_are_the_tropical_rainforest_located_in_india.pdfIn PDF document text
    • http://afracheat7.xyz/79303691225kbkdx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lonozote/does_the_black_man_in_the_green_mile_died.pdfIn PDF document text
    • http://woranuganavot.myartsonline.com/perseus_and_medusa_storyboard.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/86331265327.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/cognitive_biases_poster.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/ags_life_skills_math_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/axios_post_url_form_encoded.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/reported_speech_rules_class_9.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_off00010682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10682 5196 bytes
SHA-256: 1be8f1c52030089f03d5e5afbd45d5a49447be27e376adec1dc8b6f703fe8ff5
font_01_sfnt_off00011818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11818 10624 bytes
SHA-256: 53267e5800abe95356a1deda2bbd6d292a2840de4bd56877694e569b93faaf28

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