Malicious PDF — malware analysis report

Static analysis result for SHA-256 626f7a7dd875441d…

MALICIOUS

PDF

78.9 KB Created: 2021-02-22 14:51:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f78a48e99c3336fc0d6f209e0895ab21 SHA-1: 9d2ad2b88f7499cf8cf82a6cf341e76672bfa2d6 SHA-256: 626f7a7dd875441d9dd8ab97b5765d9cdebd74f1fc658a7a752863c89453e9cd
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 0.9995

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://druttle.ru/wix?keyword=manual+nextfit+chicco PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402707/normal_60145a8d86346.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369331/normal_60103f9227109.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487186/normal_5fee65ef1879a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375909/normal_602e61c81068a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386084/normal_6032e84d489cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369922/normal_5fea25a7c8822.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386076/normal_6010fd26e97d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494451/normal_60258dfa3cd74.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/sefukirexuwekij/dinirow.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/kukimogarowob.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/aplikasi_bri_mobile_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/samabojefizajajonixoreg.pdfIn PDF document text
    • http://xesugowoxufe.epizy.com/boost_android_box_wifi_signal.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/kixibodipajaf.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/business_plan_format_ms_word.pdfIn PDF document text
    • http://zonadomafi.rf.gd/48317990742.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/83901192305.pdfIn PDF document text
    • http://ritarejameja.epizy.com/op_pohjola_group_central_cooperative_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/guidewire_policy_center_testing_interview_questions.pdfIn PDF document text
    • http://gimukukuzape.epizy.com/filezor.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/56034826067.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/square_root_of_43_in_radical_form.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off0000e8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D2 6440 bytes
SHA-256: 705377623a4c4344e02470fedf876d1ed6f0c7c0eac322cafb15afc9430d14bf
font_01_sfnt_off0000f8c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C6 4768 bytes
SHA-256: 81c8ef511ae226876f22e922831b55ad3610ad80013adfd17204a5fe2439b3f5
font_02_sfnt_off00010915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10915 10784 bytes
SHA-256: 65cac5d03b83d7fa7ed23cc42a08c389b15858ccc209ea98463c0dfaccbff634

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