Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d875a87a5f4ab9…

MALICIOUS

PDF

87.0 KB Created: 2021-03-09 14:06:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 86c445ee69e514cab0307d67e8681d6b SHA-1: 8d2fc5d89b1abd24ad382872a1fba0c45483ac95 SHA-256: e8d875a87a5f4ab969dcfd9a8bb89fd538f21941bddb6531ec2ec7680854c124
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 0.9998

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://baarspo.ru/strik?utm_term=the+office+series+2+episode+1+script PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4447280/normal_600054ab25faa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493198/normal_6031215156a6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482230/normal_5fcc9cc75b9de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410730/normal_603701c17417f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445119/normal_5fcdff1ba6e72.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/tinezedu/teacher_department_meeting_agenda_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/shirt_template_png_roblox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b787b92f-d82a-4475-a40e-b8e8870a446b/fedex_tracking_number_lookup.pdfIn PDF document text
    • http://tujijekaxevon.rf.gd/manivu.pdfIn PDF document text
    • http://wipevamejajevim.rf.gd/wrist_blood_pressure_monitor_reviews_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a9026d1-1aed-4997-8e21-9c3d279ea6c7/nosewidok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3664b010-083d-4b2a-98fd-81fa7fa6a300/bixobelejagakol.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/cheat_droid_pro_apk_mirror.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beaeb574-3255-4957-aeb6-b35c02379176/trane_xl_80_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/70118325659.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/railroad_earth_live_s.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebdc8d63-56b4-41ff-bff6-e8a96c181ede/pogasopebixunofo.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/sosegelilufutepaga.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/vifazetanepibumedazozik.pdfIn PDF document text
    • http://rebopugosive.rf.gd/bowuluruf.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_off00011869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11869 5132 bytes
SHA-256: 40ac3677972232569ad9da27ae8a8cefddd3bbeda5af682026f4ea5bfbaf7a1c
font_01_sfnt_off000129e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129E7 10728 bytes
SHA-256: 213d9fb9c9998ec62b3fce4e4f7e871cf09b2541b558b88cc9929646ce988ae3

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