Malicious PDF — malware analysis report

Static analysis result for SHA-256 53995d6753e12d6d…

MALICIOUS

PDF

81.9 KB Created: 2021-03-04 01:14:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e7a4ad0c4b75746b33577eb5612f352e SHA-1: 117cab22b50daf92c78e8f5438077070b709d247 SHA-256: 53995d6753e12d6d48d4240a88ee001dd6a273ebc994d553793b812786dcc3ce
96 Risk Score

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 0.9996

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://zajinet.ru/123?utm_term=anaconda+python+3.5+download+mac PDF link annotation
    • http://dosubodanes.mypressonline.com/que_es_el_estilo_de_vida_sustentable.pdfIn PDF document text
    • http://salizurewaki.mypressonline.com/can_graduate_students_write_letters_of_recommendation.pdfIn PDF document text
    • http://kakolamilasaru.medianewsonline.com/tokyo_ghoul_anime_order_reddit.pdfIn PDF document text
    • http://weraka.online/how_to_check_blood_pressure_with_wrist_monitorpjfe5.pdfIn PDF document text
    • http://naliputa.mywebcommunity.org/16118959089.pdfIn PDF document text
    • http://shimano-stradic.ru/the_chronicles_of_narnia_prince_caspian_booktpreh.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
    • http://sazasewugekupej.onlinewebshop.net/fusedoju.pdfIn PDF document text
    • http://nekejikuxomufi.epizy.com/kenmore_front_loader_washer_leaking_from_bottom.pdfIn PDF document text
    • http://sitafefisoju.atwebpages.com/sunbeam_heated_blanket_microplush_10_heat_settings_queen.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/chrome_offline_setup_file.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/what_are_the_best_positive_thinking_books.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/kikoviruxa.pdfIn PDF document text
    • http://pupovedifa.rf.gd/wrox_professional_assembly_language.pdfIn PDF document text
    • http://zezibinevuzeliw.epizy.com/cisco_firepower_2130_guide.pdfIn PDF document text
    • http://gozejozonamolub.rf.gd/biwiwo.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/1999_dodge_ram_1500_rust_repair_panels.pdfIn PDF document text
    • http://desukavogoviz.epizy.com/jexosoveri.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/postal_operations_manual_pom_section_615.1.pdfIn PDF document text
    • https://www.anaconda.comIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE202 5000 bytes
SHA-256: 443860e4dbcc9cbd50a0a8ddfaa648bfc44aa333625876eb9247c0bc7efb6a40
font_01_sfnt_off0000f385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF385 5164 bytes
SHA-256: 055935b5f941a8d1035592568f3649a161770f27d77cd772279adbb447b0c721
font_02_sfnt_off00010500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10500 11288 bytes
SHA-256: 0cbe2aa71929a41c9bf1f88cffe6cb4f4ec00a3c886d968f15771a9b9b9e6cc9
font_03_sfnt_off00012b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B55 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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