Malicious PDF — malware analysis report

Static analysis result for SHA-256 085b841e872c0cf9…

MALICIOUS

PDF

85.9 KB Created: 2021-05-21 00:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 26eecf1c5d3d7e702388d73cf40ffc47 SHA-1: d7fd60cc530ce905db0c28e6cb5b232d801bd502 SHA-256: 085b841e872c0cf973a5d442c5a29db0fb707b4d74ff682ae1b1d71b0eebb71c
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-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://nipisod.ru/strik?utm_term=dashing+cm+bharat+full+movie+download+in+hindi+720p+khatrimaza PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471682/normal_603bd6583bd0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412391/normal_605a1f4b71740.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/30f34f3c-6b88-47ee-b8c8-d814a8756dac/vuloxozubukimamo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cf985ef-ed4a-4da2-908b-c4cbb6d32728/duxoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edb13e84-7fd5-432a-a9fd-865437c4c388/hp_5610_printer_cartridge_error_fix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d292bc1-5e1f-4f15-b87a-7423f665e1e9/82274194205.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/364ee927-ee5b-48e3-adb2-be0f48aafec3/saitek_x52_vs_hotas_x.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2256e087-92ea-4a0f-90c9-034490b6248f/full_list_of_french_irregular_verbs_present_tense.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/33730004833.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edcf5751-d86f-43f9-95d8-3feff10a8d30/72134187719.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/arquitectura_sustentable_libros.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/tuvazuloparinere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee4fe06d-07fd-45d1-b4f2-b2ba9ae71fbc/98916465744.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f094040a-3086-4fa0-8fac-7f54481b48c1/kubota_spare_parts_catalogue.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60b6de5f-8720-4f0b-968d-1f8bad81f8ae/welepujagusakapigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66671113-fe5a-4e61-8ab4-a7b09fb662b6/85463529502.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5903398-c950-452a-8158-560830f56cfe/danby_3.1_mini_fridge_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48d3222c-735a-495d-badd-399a474d4f53/89436136360.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/ditimewudedivolekuzopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47117ac1-2f1f-4acc-b151-b6031c194602/dobetorodinamazus.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_off0000faea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAEA 6328 bytes
SHA-256: 039fd2b5c4e6d209f22d0505bc6b2dfe9c71aa19e0354e43874df9dc0787293d
font_01_sfnt_off00011073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11073 10428 bytes
SHA-256: 31fa255680c76c58a65cf2f24fae5048cf8dc35c6302e01e63d62c0290fb936d
font_02_sfnt_off0001349a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1349A 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8

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