Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04007350f4ad26c…

MALICIOUS

PDF

78.1 KB Created: 2021-04-07 10:57:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 81c8b0ac6cd97f5f0ffacc15e948c1be SHA-1: 17827df2ea01252d442367350cb8267246cff241 SHA-256: e04007350f4ad26c9b538f2ff728d9e35cfd7adee6a36b82105af7b44310aac0
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 0.9998

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://baarspo.ru/strik?utm_term=asrock+z77+pro4+ram+compatibility PDF link annotation
    • http://birjand.design/dominos_order_online_pay_cashdpomo.pdfIn PDF document text
    • https://cdn.sqhk.co/pabefidinaz/gjheG9C/rusoxa.pdfIn PDF document text
    • http://creditscorehelp.info/why_did_my_kenmore_vacuum_stopped_workingfc537.pdfIn PDF document text
    • https://cdn.sqhk.co/setewefasari/ejdokgj/booyah_pad_crasher_jr_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wemopizajazo/juYiahj/car_lease_calculator_canada_excel.pdfIn PDF document text
    • https://cdn.sqhk.co/gagowuname/ajbiwgh/shopdisney_uk_guest_services.pdfIn PDF document text
    • http://astrology-personal.online/squares_and_square_roots_worksheet_answersu37bc.pdfIn PDF document text
    • http://micrometerdigital.xyz/30829847106xv2nm.pdfIn PDF document text
    • https://cdn.sqhk.co/nikamegamu/mYFjkAE/20976083269.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/gelawiweza/19116890332.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/kindergarten_phonics_practice_book.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/blister_in_the_sun_guitar_tab.pdfIn PDF document text
    • http://buzanuziti.myartsonline.com/castrol_edge_professional_c1_5w30.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/hp_deskjet_3050a_j611_series_basic_device_software_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/81585754965.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/kixunegeduma.pdfIn PDF document text
    • http://zegaruso.rf.gd/6996868206.pdfIn PDF document text
    • http://kutoxinupuroxo.onlinewebshop.net/kuvitapugijuzor.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/soxarimak.pdfIn PDF document text
    • http://faxumev.epizy.com/apache_web_server_for_ubuntu_16._04.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_off0000e927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE927 5592 bytes
SHA-256: 4358e580c080501fb505df8cb986fedefce1508db9dbd670788e9ed6704c35d1
font_01_sfnt_off0000fc2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2F 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off000104bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104BC 10704 bytes
SHA-256: a1be1c57f7b81053d6524fd25e48b8100e9c9050e7ae5f413f5b775882cac5bd

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