Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfc3d3ee644cca54…

MALICIOUS

PDF

76.7 KB Created: 2021-04-01 01:16:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: edb784384f9c493166b0d934aae94f6b SHA-1: b952dff6565b0a14733e657197b700d06730c284 SHA-256: bfc3d3ee644cca54e1f238722ec3f1cc794feb8fceecfa941a075e4bfe53d007
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=7+days+to+die+not+launching+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4505687/normal_604d0bfd8a42b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418000/normal_5fd3dcde3d886.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469349/normal_5ffd6f5da08b5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372378/normal_5ff15a42875f7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394061/normal_5fe0c193dc8d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417046/normal_5fddc556327dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485801/normal_6026ffd935904.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414487/normal_5fd07fcf89e1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416672/normal_6031d8abd4576.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/kegubinefuda/ridunogarawuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/paruxuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c128def-dcbb-42ec-8b25-c886f37469a8/easy_way_to_learn_to_read_tarot_cards.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/clicker_garage_door_keypad_reset_without_enter_button.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3c6fbea-b565-4247-bec2-d6169bc85207/54746531190.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2561751b-d32d-46b0-8a95-2d8c75e9a900/declaracion_de_los_derechos_humanos_historia_resumida.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/lafiwirusedifebijokibeb.pdfIn PDF document text
    • http://nofolimuri.myartsonline.com/banking_companies_act_1949.pdfIn PDF document text
    • https://cf2e1f24-e5f1-4289-9567-3affce9c164e.filesusr.com/ugd/a4ea6c_a6f8ac8390f54f78884212a289753ec6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jadere/luvuzurosov.pdfIn PDF document text
    • https://73e25548-3913-4bbb-aa69-a1b25f69568d.filesusr.com/ugd/cece23_93835323a823468b9c9a40474e4ceb6a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e61b6ac-9c7b-4215-a242-230ebfe53e1e/89665733170.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a823c8d-1328-4014-855c-a1a1ce5496bf/life_together_bonhoeffer_summary.pdfIn PDF document text
    • http://nevabaza.atwebpages.com/jspdf_autotable_page_footer.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_off0000edb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB1 5468 bytes
SHA-256: 4b31849274f4f9446be1efa0b4da280df3f5fb8970b6e7098f746cfa6ac87cae
font_01_sfnt_off00010052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10052 10952 bytes
SHA-256: 2f7ad7e250b5b45c53e326a3b19205e7defc801848f543e99fa7648a5e98d574

Open this report in the interactive analyzer, or submit your own file for analysis.