Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7a45c03430fa4b2…

MALICIOUS

PDF

67.2 KB Created: 2021-03-26 08:15:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 697d291888c77a246564257631db93eb SHA-1: 9af201a617ca734d63586ce6c8ee8c7b0cb387b4 SHA-256: b7a45c03430fa4b2dc986e3ff1fc075ffe606163caba2b56967aa72843dcbcba
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 0.9997

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://fokemale.ru/strik?utm_term=what+are+the+5+great+relationships PDF link annotation
    • http://rezexepenoma.scienceontheweb.net/english_speaking_skills.pdfIn PDF document text
    • https://pedasivu.weebly.com/uploads/1/3/5/3/135387907/198973.pdfIn PDF document text
    • http://titujewegefo.iblogger.org/a_streetcar_named_desire_setting_scene_1.pdfIn PDF document text
    • http://shtangennstutkupitseychas.xyz/zosuwobofezalowaigash.pdfIn PDF document text
    • http://bulakirip.getenjoyment.net/divergent_download_in_tamilyogi.pdfIn PDF document text
    • https://dudakodut.weebly.com/uploads/1/3/4/4/134497067/7069929.pdfIn PDF document text
    • http://joweponula.mywebcommunity.org/metamorphosis_book_summary_sparknotes.pdfIn PDF document text
    • http://promooffer.site/romeo_and_juliet_act_1_scene_4_study_guide_answers67j5m.pdfIn PDF document text
    • http://xevamoz.mygamesonline.org/lier_plusieurs_en_un_seul.pdfIn PDF document text
    • http://dobofozepop.mygamesonline.org/risewedareludurosoru.pdfIn PDF document text
    • http://nitanupemil.mygamesonline.org/les_miserables_story_setting.pdfIn PDF document text
    • http://tiluvopira.medianewsonline.com/51333888641.pdfIn PDF document text
    • http://sisogelodaze.medianewsonline.com/xonefawiti.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/norozovijalu/roboto_font_apk.pdfIn PDF document text
    • http://dubekitaxa.epizy.com/rscit_admission_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/6161382479.pdfIn PDF document text
    • http://fisuzes.epizy.com/how_to_show_photosynthesis.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/nvic_04-08_enclosure_2.pdfIn PDF document text
    • http://kerexiref.onlinewebshop.net/26289413767.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/xodiz.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/22003719518.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_off0000cbd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD0 5220 bytes
SHA-256: f1ac635876a787be47afebc372779babb3124f26e2c5cab4a99f44fcedaf0f49
font_01_sfnt_off0000dd9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9C 10316 bytes
SHA-256: cb72853317fd09ba79ed24fce1b246236609233a5580658139fb34339c683b05

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