Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd23b36fa63ab1fe…

MALICIOUS

PDF

89.5 KB Created: 2021-03-28 09:30:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 92a0be5276c3ace88a79598a1f2fa5f3 SHA-1: 725284aa1dd35b145984924691f4d9df50b97259 SHA-256: dd23b36fa63ab1fe73522f571681357a4502bd142522a22304cc43f405f09227
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9996

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://kuzutuzo.ru/strik?utm_term=is+a+cool+mist+humidifier+good+for+sinus+infection PDF link annotation
    • http://zibodotuf.mygamesonline.org/how_to_swing_trade_andrew_aziz.pdfIn PDF document text
    • http://bikelumonekodex.mygamesonline.org/xasadaroluruvarakixuja.pdfIn PDF document text
    • http://wodedutipif.medianewsonline.com/tagukugal.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/student_goal_planning_sheet.pdfIn PDF document text
    • http://megidexabaror.mywebcommunity.org/57452872797.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/jeromopelurab/colchester_sixth_form_a_level_results.pdfIn PDF document text
    • http://letozin.rf.gd/autonics_timer_at11dn_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7b432ab-052c-4d68-b012-bd3697d5f0fe/86315130076.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/sadumaxirelixirutuzip.pdfIn PDF document text
    • http://durenifujogax.myartsonline.com/isotopes_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/pibigomexidawugixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e09924eb-dd3e-4f49-b00f-5f7c1a16b5ef/flying_stars_2021_colors.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/comprehension_practice_worksheets_for_2nd_grade.pdfIn PDF document text
    • http://jurelofi.epizy.com/18201774966.pdfIn PDF document text
    • http://pekagotikoweguf.epizy.com/75095216062.pdfIn PDF document text
    • http://jozorawoma.rf.gd/18391861187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01d609da-7699-4525-bf47-a0b5ec9c7315/how_to_change_time_on_sony_dream_machine_icf_c414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f44a288d-f0b5-4813-8a1a-92c8dbfffd68/jipijonevagowexi.pdfIn PDF document text
    • http://xejobutek.onlinewebshop.net/bateria_automotriz_funcionamiento.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/penula.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/astonish_oven_cleaner_safety_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/12829833936.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DB9 5372 bytes
SHA-256: 926b3710b0ba3ae1d3fb652e7ac2192d8b65b10fee24ea50ad6f746e91b0afe1
font_01_sfnt_off00012fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD2 11984 bytes
SHA-256: 4e2fb657832cd5068d5c5f926d4d18c086ad95958bd7cc186d5b468b1627de7d

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