Malicious PDF — malware analysis report

Static analysis result for SHA-256 350f39ceb86849a3…

MALICIOUS

PDF

75.3 KB Created: 2021-03-19 14:35:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 40e354c8c775fc0a7172ff41a8872282 SHA-1: 0edbd3ee8f9bea767d0ce33ee5e55d3541d21682 SHA-256: 350f39ceb86849a344fca07b68bac76896c93b695ec7e3175aef58ce3f66f510
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 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/aws?utm_term=the+three+estates+definition+simple PDF link annotation
    • https://cdn.sqhk.co/mamevugixej/ljdter4/54580165895.pdfIn PDF document text
    • http://besuxiju.22web.org/85542877281.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/7JEj8mg/26829389384.pdfIn PDF document text
    • http://retys.fun/mawimurutipumjra9t.pdfIn PDF document text
    • http://lokubakodo.getenjoyment.net/computational_physics_jobs_salary.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/uqigKhj/taxodafawuw.pdfIn PDF document text
    • http://pijojivilenasi.iblogger.org/upper_back_and_shoulder_stretches.pdfIn PDF document text
    • http://gufutaca5.xyz/summary_of_the_poem_fire_and_ice_brainlyrsdz9.pdfIn PDF document text
    • http://tolosoludoxol.22web.org/68756691755.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/ti_30x_iis_decimal_to_fraction.pdfIn PDF document text
    • http://gazzsheff.xyz/dusagemorazuvexesagansypf.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://s3.amazonaws.com/widofafane/ariens_riding_mower_owners_manual.pdfIn PDF document text
    • http://vevisadoko.epizy.com/rawazosole.pdfIn PDF document text
    • http://muvipej.atwebpages.com/approach_to_hypocalcemia.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/xasusiwijotawugevenaju.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/itunes_terbaru_windows_7.pdfIn PDF document text
    • http://fasevofal.epizy.com/ada_diabetes_care_guidelines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/endnote_x8_free_for_windows_8.pdfIn PDF document text
    • http://lixugafepujijoj.onlinewebshop.net/the_scarlet_letter_sparknotes_chapter_3.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/16493972896.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/is_the_woman_in_the_window_scary.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/sap_crystal_reports_designer_2013.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_off0000de67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE67 5016 bytes
SHA-256: 77fd00c7327b1c42bd3176520ad67c12633594574072d6fdc17e9f63acd599e2
font_01_sfnt_off0000ef40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF40 10060 bytes
SHA-256: de199ddd65f65f913496004ceecb01ecb09445797dfe757eb6b94396e42c3fef
font_02_sfnt_off0001118f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1118F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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