Malicious PDF — malware analysis report

Static analysis result for SHA-256 5503533451edd412…

MALICIOUS

PDF

76.2 KB Created: 2020-11-18 12:36:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8843ed82e6c09483cfc682c712aaa970 SHA-1: 91b329d4acbfa7851424880429ad36c02c37da96 SHA-256: 5503533451edd4125a89ca3001a1a6f44663d659c6fb868a62126854e7648172
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-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://traffking.ru/aws?utm_term=company+logo+mockup+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376354/normal_5fa0d17c7d8ca.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/giwurode/26812735271.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/541a5341-b65d-4312-889d-a926a57f1e10/89176441160.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/agro_climatic_regions_of_india.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/dr._jean_elwing_cincinnati.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/52061218830.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/degorafofegisipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c200edd5-ae21-4e0f-b33e-4f5340cb2b0e/51479618856.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/50529058748.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/galozezafavatutuziximeto.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/tote_umbrella_warranty.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b91a655e-fc07-424f-b613-47889aa2a62d/biwajowugabeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/067a1263-34e4-47cf-bfb9-4e7686e90060/bulldog_bob_brown.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/homogeneous_mixture_examples_physical_science.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/academic_writing_skills_2_teacher_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/universal_manhood_suffrage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75af6c94-4083-45f9-af84-89ef245d22a3/kpss_matematik_soru_bankas_indir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE81 5100 bytes
SHA-256: 701047d2f489773588c1aad2911bcfcdfc8b4430172c57b9821ed5ab79aed5cd
font_01_sfnt_off0000efd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD1 11224 bytes
SHA-256: 1f9808f9c93808cf0159968db5abf2cb5148e4d582e30ae5f98aef60bea735f4
font_02_sfnt_off0001158c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1158C 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230