Malicious PDF — malware analysis report

Static analysis result for SHA-256 45c8c4cc0e4b4854…

MALICIOUS

PDF

69.6 KB Created: 2021-03-08 13:02:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: ea943088bda7c15082dd09c5e05741d1 SHA-1: e3078cb5a0cb11bf87c76bef158dcd6636086ed1 SHA-256: 45c8c4cc0e4b4854071c6e7ae88ceae4959c8f8112a91a837f8ead2dc9e0bb73
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that, when visited, likely leads to a phishing or malware download site. The document body, though heavily obfuscated, suggests a lure related to a "charge code manual". The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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://lozipotod.ru/wb?keyword=mo%20charge%20code%20manual%202020 PDF link annotation
    • http://revujutipisan.22web.org/disixor.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/iaB7ojg/smart_launcher_3_pro_apk_cracked_download.pdfIn PDF document text
    • http://kopumiwabetare.66ghz.com/financial_analysis_questions_and_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/hjJnJXp/25069518041.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/KGjcgge/zombie_age_3_mod_apk_revdl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/9bcaabca-112f-4ba5-9684-67092799c77f/24063416414.pdfIn PDF document text
    • http://jatowikuv.rf.gd/chronicles_of_narnia_movies_in_order.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/apa_style_table_of_contents_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0e38515-a310-415e-8041-53ec0f801606/stanley_garage_door_replacement_panels.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/aulad_walo_phoolon_phalo_hd_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa44b18b-131b-4afc-a398-0bcac8562793/naruje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdd2b8be-9d99-4bef-b885-34b9194339a9/pioneer_vsx_530_k.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f1c9485-540e-4ca6-b4ca-c318d4b105e9/the_100_books_by_kass_morgan.pdfIn PDF document text
    • http://werolalijatet.rf.gd/galvanised_roofing_sheets_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/jozerivimunejunorixixovu.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/kawijesepubolewaredewapis.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/vupuzoje.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA37 5208 bytes
SHA-256: 8dd9e658151d8f799b2f0c1002834ee99e288cd2abc9f29ce0efcccb5ecc8747
font_01_sfnt_off0000dbb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB1 9224 bytes
SHA-256: 3e8677551e4c8bd686b67ed7b6de2b545874fd6bfb8882e80db8a9d302cad47d
font_02_sfnt_off0000fb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB49 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

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