Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd5eddff683276bf…

MALICIOUS

PDF

88.0 KB Created: 2021-03-25 22:41:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: c41c815da1f81b9a40a38e32a08f1f76 SHA-1: 19dcffe9e880c80a2cb0eed29ebec42c6bf160d8 SHA-256: fd5eddff683276bf54cef45a422edc16537bb4345376af6dcb7ed739acabfe7a
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 0.9990

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://mezovuduw.ru/aws?utm_term=ap+human+geography+unit+2+key+terms PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388156/normal_602a77f5ed118.pdfIn PDF document text
    • http://keluzizizeroki.getenjoyment.net/tirowiribuzuzeb.pdfIn PDF document text
    • http://linefofaxugedu.mywebcommunity.org/14879271755.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463286/normal_5fe8794070804.pdfIn PDF document text
    • http://wisagomojinux.iblogger.org/womujuxuridaxaguner.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/RAihwja/among_us_lock_screen_live_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_60460d795e3f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368224/normal_5fc8f6b97f8f9.pdfIn PDF document text
    • http://sunipemumax.66ghz.com/counting_money_worksheets_singapore.pdfIn PDF document text
    • https://cdn.sqhk.co/xezojutatow/did3KZj/blazetv_promo_code_levine.pdfIn PDF document text
    • http://gapagal.mywebcommunity.org/51196190296.pdfIn PDF document text
    • https://cdn.sqhk.co/simirides/hegfjaU/61345709478.pdfIn PDF document text
    • http://fulokixowo.scienceontheweb.net/accounting_and_financial_statement_analysis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466675/normal_600a90b140c63.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/megodipewukitoj/periodic_table_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/97194841970.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8349dfad-4565-42a7-94aa-789aaa1da101/78556393217.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/42614579775.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/mac_os_catalina_vmware_image.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5886bb6f-bcb3-4510-a816-5c09e53ad2ce/venazuxedufuvawedav.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/51569619283.pdfIn PDF document text
    • http://futikuzita.onlinewebshop.net/muponadapozanelovadeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47d3802c-6ab1-49b9-ac5d-27dc2f090f7b/basic_first_aid_book_free_download.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10455 5488 bytes
SHA-256: 6b89b47165a01d87f1696f99c4ed46a9131c25588203bd4e671912eba92f0ab1
font_01_sfnt_off000116e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116E4 11592 bytes
SHA-256: 8c439488746de50636dccb65674497a87e7aaf44c25e15264fbd2afc548ae36f
font_02_sfnt_off00013cea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CEA 16116 bytes
SHA-256: acdc7345fd7c724e0f83f99756c334a81566d7f1ced1780f830934d9e28cbf4f

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