Malicious PDF — malware analysis report

Static analysis result for SHA-256 810d2b6819c19529…

MALICIOUS

PDF

81.2 KB Created: 2021-03-20 08:28:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1adbeff87f0414b90b8c518bcc852d10 SHA-1: 9a60d9430741fa2faa1044ef5820a5c303d6a73d SHA-256: 810d2b6819c195293b7c7e7c9c4f6d7adb5e9f3253cdefd254badfe4dfc54557
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 0.9997

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://jumiwimov.ru/123?utm_term=baggage+size+guide+american+airlines PDF link annotation
    • http://majexifavel.scienceontheweb.net/discrete_and_combinatorial_mathematics_5th_edition_textbook_solutions.pdfIn PDF document text
    • http://xofajenakimexo.iblogger.org/adobe_character_animator_cc_2018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/493d7e1b-efee-4292-ac77-9702f0be6488/diferencias_entre_la_constitucion_de_venezuela_1961_y_1999.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/ubuntu_14._04_lts_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/5208223265.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e24e4366-92bc-4da4-8ade-888a89a4d120/60181229807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd3f04b8-cbb7-4f82-a687-d8e2a4511817/6059504490.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/what_is_health_data_analytics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec268311-92dc-4fc0-9ee7-d11a76ed4aa4/kajofabug.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/money_tracker_excel_spreadsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2729cd81-4c60-4bf7-8314-b15ed48013d8/can_you_update_your_roku.pdfIn PDF document text
    • http://jeranaxerobapil.rf.gd/steel_column_design_calculation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecc68f6a-4205-49bf-ba66-530ef03c6033/89331356530.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eec8b20d-8d84-4bca-911d-1307547e823c/2019_drz400sm_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7f5f2c3-0b2a-46ea-9d3f-123da15d990a/epson_event_manager_cannot_connect_to_scanner_windows_10.pdfIn PDF document text
    • http://milebulijulami.onlinewebshop.net/sumenas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62ad4d18-df50-4898-b3ee-6858b58b976f/will_evening_primrose_start_contractions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd677519-30ac-4cae-8af8-29f179016d86/gujuvokasarivule.pdfIn PDF document text
    • http://jumepenitujox.atwebpages.com/mujigapoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee06b253-5069-4719-b817-48c5659a5968/83391673660.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/28102295045.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_off0000fd8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8F 5356 bytes
SHA-256: e8b94139542947558ddbf2e82673cf6ee1664d65539f34f40067cc9d101986ad
font_01_sfnt_off00010fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB8 11276 bytes
SHA-256: 09faad4535431273644f7334fbf7fd94fe472ffc46ea2f2b02a3c37ec540b8c0

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