Malicious PDF — malware analysis report

Static analysis result for SHA-256 23c618b1efa85e67…

MALICIOUS

PDF

77.6 KB Created: 2021-04-23 23:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8f9c7061e9b090584900a59ddbd0d9c8 SHA-1: df789da4b9a78cef57ed7b7c250cda4ee5ad59f4 SHA-256: 23c618b1efa85e67909222f7d6481aaa5997184a4f612a766bab8dc33e654abd
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://bologen.ru/strik?utm_term=how+to+be+an+emotionally+unavailable+parent PDF link annotation
    • https://cdn.sqhk.co/banuluwopote/eviihgY/end_of_days_vinnie_paz_mp3_download.pdfIn PDF document text
    • http://awpmode.com/how_to_clean_dirt_devil_featherlite_cyclonici2avr.pdfIn PDF document text
    • https://cdn.sqhk.co/nedivixozu/ehfjeDK/brand_guideline_document_template.pdfIn PDF document text
    • https://cdn.sqhk.co/zinoliwomi/pjcmjjx/levupugenujorejefesaj.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/ZqQiAgd/kojilelagotalurumugufefig.pdfIn PDF document text
    • http://2220202.ru/xosami3u9v2.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/a2UtjfU/fekilowufotoxam.pdfIn PDF document text
    • http://circus.market/lagu_salah_apa_aku_uyeshareo9849.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/cpgfidt/lip_anatomy_vessels.pdfIn PDF document text
    • https://cdn.sqhk.co/xegunorasu/gjx2Wnb/final_fantasy_crystal_chronicles_remastered_release_date_2019.pdfIn PDF document text
    • http://priz24.site/629621041100cjl5.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/29a5d50b-dcc3-4596-b211-37cf212512e5/black_and_white_portrait_photography_lighting_techniques.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/place_value_house_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/table_of_integrals_series_and_products_citation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8987f664-6e8d-409b-9cd3-f60aee85a6e1/vupidudozisofewe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21f86fb1-c055-4de6-a9b5-53e3769c508b/11788247915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05a8c892-f3e4-46c0-a3fc-2b2023e11130/93651971025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60fc2c9c-0e66-4ae1-b049-32c14bd7151c/city_of_bones_2_movie_trailer.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_off0000f21e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21E 5140 bytes
SHA-256: 04d83ddbbc5456662072233c4adab96cd3e4da11316582d785713aa12fecd397
font_01_sfnt_off0001039b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1039B 10356 bytes
SHA-256: 0e63b5438113f11eacec9eb8921190ae846a6518182b13bc6fd43aee0896db2a

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