Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea64d66a946ea24b…

MALICIOUS

PDF

80.5 KB Created: 2021-03-06 04:02:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5ace63eedb849b20e38ea3d994cf0d17 SHA-1: 820dbd41634b98c4344ecbf007efd1bcdd9b25d0 SHA-256: ea64d66a946ea24bb144b2a7084a830b40a7ba7cb92ccc47ca9c55bfd527d1f2
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-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://golowaki.ru/aws?utm_term=harlem+by+langston+hughes+poem+analysis PDF link annotation
    • http://vinamituloj.22web.org/how_much_is_a_train_ticket_from_dover_nj_to_nyc.pdfIn PDF document text
    • http://vulgargirls.fun/93001185378nf4zf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491669/normal_5fd7ef9711cea.pdfIn PDF document text
    • http://rerulekoba.66ghz.com/confirmation_party_invitation_templates.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413375/normal_5ffdb68c1caef.pdfIn PDF document text
    • http://ttttrrrr.space/lista_de_medios_de_comunicacion_antiguos_y_actualesrk77k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462694/normal_5fe639e1778d6.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/vavabi/wow_enchanting_leveling_guide_wotlk.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/9483907380.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/how_to_make_a_square_tubing_bender.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a23ac4e-f829-49d2-b857-98e350f2dd7c/54286924469.pdfIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/choice_strategies_dependent_care_claim_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cdf5302-7eae-4717-8a1a-769fde894815/ranabomizi.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/mastering_physics_14th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/51121190289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/015e2e50-9f24-4990-9c36-936876745a00/frigidaire_stackable_washer_drain_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/can_a_former_employer_bad_mouth_you.pdfIn PDF document text
    • http://durumam.epizy.com/python_crash_course_2nd_edition_epub_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c85ff1eb-9839-4a91-ad4e-1117b8d35a04/94069726094.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/vunenekema.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_off0000fdff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFF 5436 bytes
SHA-256: 874cf269a884fe05f9c25219d33d8b3f43cb1c91b621795272367e71534f0fd4
font_01_sfnt_off00011053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11053 10612 bytes
SHA-256: ae6cd1f0afcc88edfcb14af897bfa9c4b9ae18fa095af0ad188eb9f538afe3cd

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