Malicious PDF — malware analysis report

Static analysis result for SHA-256 297a14b1f44158b0…

MALICIOUS

PDF

63.0 KB Created: 2020-11-19 08:50:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2020846bfcc0ca1f90be65c6e415533e SHA-1: 98579d24f33d769ab53c357396a9dd9c2eb8b381 SHA-256: 297a14b1f44158b0c88bbcc02d9bd4e13ca9574c4d05f2de16498d94304822af
96 Risk Score

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 0.9998

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://trafffe.ru/strik?utm_term=cambridge+english+for+the+media+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420599/normal_5f9b895a0c7fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391024/normal_5f98d9ce8a9dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368487/normal_5f882e80920de.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/e9ecb672-87be-4e40-a7fa-9289dc594e90/zuvumiwavidaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f05b9f8-319c-4f8b-8515-140f3b5a1f05/zurozobexidusilawuvomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64a93b6b-87bf-436b-a58f-7510b339fb19/fsa_geometry_eoc_review_packet_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b51ca2d1-e46a-4557-a008-37d95c2c8ad1/dirabukidoterojol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bd00d2a-13c1-478e-9d01-0f9c6a78eb8d/audiolibro_el_secreto_en_espaC3B1ol.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/31327338034.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76788b00-f561-4eca-b16c-9324f2569992/rogapafezi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1de94514-367b-449f-969d-8841212bf54e/craftsman_7800_pro_series_parts_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aacfdd00-5878-419e-9e9f-af45cf712bee/penigatugip.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_off0000b8ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8EA 5500 bytes
SHA-256: 49b923db767ecfdf6ff54d075d61ecc0509b9e0c7a6bda1f0b8ff40b382fdca6
font_01_sfnt_off0000cb66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB66 10660 bytes
SHA-256: be8ba9e1809b1fad4b9c9866cee4dfb05a2cfb7864d81a3849bb3fec82fff9f9