Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c780f4bb5e1d10…

MALICIOUS

PDF

79.9 KB Created: 2021-04-25 22:22:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9d213bb541f4ef47581ad3228611138e SHA-1: 0f3fe9bc3d938348327ac8814aa2a2f8ceff0c49 SHA-256: f1c780f4bb5e1d10373355d4f748485b321b4a59bbaec229a101f761237ee1bd
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 0.9994

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=prince+lestat+and+the+realms+of+atlantis+synopsis PDF link annotation
    • https://cdn.sqhk.co/ginovolox/iIxofvz/4484298830.pdfIn PDF document text
    • https://cdn.sqhk.co/redexisa/jdtiajj/46179806163.pdfIn PDF document text
    • https://cdn.sqhk.co/liviberox/5XhdPpF/kaduropowawusufazo.pdfIn PDF document text
    • https://cdn.sqhk.co/surikuzezun/95DNjfp/puppy_wallpaper_4k_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/IOIjiIh/highway_bike_racers.pdfIn PDF document text
    • https://cdn.sqhk.co/demexadol/1gfKG77/tiktok_boost_followers_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vabalogu/gnQehds/runanefetere.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/fMieQjd/autobrush_dental_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/pawexedibib/uczhNhg/1264818108.pdfIn PDF document text
    • https://cdn.sqhk.co/pozusawaja/jiCwge3/fediduwetuvutizowugur.pdfIn PDF document text
    • https://cdn.sqhk.co/tikalijit/7giCdjb/functional_and_matrix_organization_example.pdfIn PDF document text
    • https://cdn.sqhk.co/rekosiseweno/giMibmY/desulemape.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/AiEhgha/pink_color_ballet_slippers.pdfIn PDF document text
    • https://cdn.sqhk.co/nemazuwigumo/Dgfrjgl/crystals_cupcakes_afternoon_tea.pdfIn PDF document text
    • https://cdn.sqhk.co/wagavoketi/hazhijc/megofujutapesesukiwex.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/cd8a6b98-fc47-41ea-9cd6-46def7b24bfd/descargar_audiolibro_la_magia_del_orden.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/chikati_gadilo_chithakotudu_movie_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/bwv_846_guitar_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64148323-d865-4f49-b896-783dafdcd6ce/48467498791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88f8d545-452b-411d-9b84-94dea754642f/waxoxizuwiwasagufepenul.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/89687805779.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dec3e381-dd34-4a27-8760-5a1ec592a881/kaforopupuzemiv.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/jbl_ceiling_speaker_calculator_worksheet.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_off0000fa08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA08 5496 bytes
SHA-256: aa51dc70fc78d5f69286b3698f1a4fd13f52bbd2603bd0911d51043aa552bf0f
font_01_sfnt_off00010c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C9A 10892 bytes
SHA-256: d643d4772eff9ac2f8c112e933fb616f47db70d39c95274e6ec68cba594a8047

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