Malicious PDF — malware analysis report

Static analysis result for SHA-256 f68d2564d2db4a1b…

MALICIOUS

PDF

94.2 KB Created: 2021-04-01 22:56:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bb008baacd73c610c436c1838944be4c SHA-1: 2360875de626f5a71d6f8789c88a49ee692bd4a2 SHA-256: f68d2564d2db4a1b76736fdde3ff0da26a9e57361e35a245a86a84bb92ce6578
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=ms+office+word+cv+templates PDF link annotation
    • https://cdn.sqhk.co/vofudejobif/11gijhe/doviwetogizomag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370074/normal_605f9c83cdd3f.pdfIn PDF document text
    • http://wuroguredogir.getenjoyment.net/49806890296.pdfIn PDF document text
    • https://cdn.sqhk.co/ragonujip/oLFii0J/zofivusarorojefibisep.pdfIn PDF document text
    • https://cdn.sqhk.co/bozomixega/Iphbajh/luwezotabofadagev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452148/normal_5fd8a2fa5c74f.pdfIn PDF document text
    • https://cdn.sqhk.co/nosamese/ijJjOhj/bosasudeluxutana.pdfIn PDF document text
    • https://cdn.sqhk.co/varugefezum/TIjjK71/91829573876.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/litunux/bafosutopem.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/how_to_fix_no_dial_tone_on_landline.pdfIn PDF document text
    • http://betakudo.atwebpages.com/bose_rc-pws_iii_universal_remote_control_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/accelerate_learning_explore_student_journal_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c473df6-2752-4a63-aa99-2cf5531cb3c9/lowenekusalofuzerixa.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/chotta_mumbai_dj_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4eb95f33-76a0-4eea-b8f2-3f6e49523e4b/how_to_pair_spectrum_remote_to_cable_box.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fb01555-978e-429e-a91b-ce710fa19361/degiwuzidadogarenewaku.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/texas_inspection_report_lookup.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/57803938031.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/fuzexiba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73f4144e-e912-4827-9e85-42773583385c/nalezevigetazerepugar.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_off00013458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13458 5456 bytes
SHA-256: 979a993057ac66f8f91fd69d3c8cb44e0c63d91cf1de5bf0fab4110cdb205c2d
font_01_sfnt_off000146f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146F8 10756 bytes
SHA-256: 8270d5defe0ae89e62fb2c61b5ee37eb62fb2192b640195a2deb5b017e7aa326

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