Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a05239ac066f0ff…

MALICIOUS

PDF

74.8 KB Created: 2021-03-30 22:47:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 578de6e19a064ab5bf1c604a1978e579 SHA-1: 669f2934c7ffaf013c97827884626c507dbfb03a SHA-256: 9a05239ac066f0ff73d849488e1f239f5e738e6bad30e89947e12f431a9a388d
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://kuzutuzo.ru/123?utm_term=bittersweet+pdf+en+espa%25C3%25B1ol PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424376/normal_604cebf924a52.pdfIn PDF document text
    • https://cdn.sqhk.co/wanaxowuwot/hijfPhf/pathogenic_meaning_in_telugu.pdfIn PDF document text
    • http://zenajok.medianewsonline.com/68076772632.pdfIn PDF document text
    • https://cdn.sqhk.co/bamikalagov/Kjbgegj/drift_track_project_cars_2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446642/normal_604b8f84cc4d1.pdfIn PDF document text
    • https://cdn.sqhk.co/bumotinidopi/uifgidL/5420905382.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425483/normal_60347a517a2cf.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/is_6.5_creedmoor_too_much_for_coyotes.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarasam/hdticji/giretawi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418575/normal_603733d068195.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493227/normal_60499729bd84a.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/2dd9c39f-bab8-488a-bf9e-ac0ad1ade637/fapuzowekele.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/kitchen_sink_material_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/el_hobbit_3_pelcula_completa_en_espaol_latino_online.pdfIn PDF document text
    • http://mifojizu.myartsonline.com/55100389426.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/sidizoteri.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/sujibiwemowetugu.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/lubizefaxumu.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/m._a_ka_full_form_kya_h.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e9f9a6b-fe6b-4326-88e3-730e3325a038/fevofexik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fcd870e-dcbc-47e7-baef-125af91a6523/maniz.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_off0000e060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE060 5388 bytes
SHA-256: 32069cc119392f65cdb78bd3cd25a331ddd57ff01d6c052367aac3bf7446abbf
font_01_sfnt_off0000f294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF294 12880 bytes
SHA-256: 5ab75c9a90b24e8d62b819cb0582075de5223ea5635c63a78ac414f6d50dee9e

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