Malicious PDF — malware analysis report

Static analysis result for SHA-256 376059e8218cbbb0…

MALICIOUS

PDF

82.2 KB Created: 2021-02-13 01:19:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8ba39d9f5bc513695df36f1674773f1b SHA-1: fe0f379a890d8b0666300b42fedbf947acd7fffc SHA-256: 376059e8218cbbb0e090a5dbbbc81b26c35eff42ffc0352f8265e3802a1182db
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://maypoin.ru/123?utm_term=oedipus+rex+full+text+in+urdu+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459464/normal_5fdfd7bc745d1.pdfIn PDF document text
    • https://cdn.sqhk.co/voguzasijur/BgiCjfC/snowflake_lane_bellevue_wa_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401982/normal_6003d0b936e57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450355/normal_5fc7dae44973b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387031/normal_6019f259694e5.pdfIn PDF document text
    • https://cdn.sqhk.co/pulununese/Uia6gYe/freecell_and_spider_solitaire_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366632/normal_601959ffa8a56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484835/normal_60064180a111e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444374/normal_5fff24022dbba.pdfIn PDF document text
    • https://cdn.sqhk.co/pejinijew/hNgjhhj/30123775289.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5fd353a0b4772.pdfIn PDF document text
    • http://istra-backwater.ru/madinawedajitiwi5lk9j.pdfIn PDF document text
    • https://cdn.sqhk.co/gejupajo/g3j6hjn/sentinels_of_the_multiverse_wikipedia.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407813/normal_5fdf7e319505b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pawekixezad.epizy.com/world_travel_and_tourism_competitiveness_report_2018.pdfIn PDF document text
    • http://vebaxabono.epizy.com/bookeyed_nelson_font.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/xusabobabelosajobenar.pdfIn PDF document text
    • http://guzaxugevogifu.epizy.com/88943875559.pdfIn PDF document text
    • http://ritarejameja.epizy.com/alchemy_guide_bfa_1-_150.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9A 4920 bytes
SHA-256: 6e0e915280b0c4ba42f078b8a2596bbbff7e7e06d0a354bdbc86746e1350eb29
font_01_sfnt_off0000fb68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB68 11228 bytes
SHA-256: ad45822da009f7e6a829cecc6515a93e7010cd19b54e2da3b142b53f7bbaaa10
font_02_sfnt_off00012185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12185 17036 bytes
SHA-256: 47dac13512c1afd7eba5157ab8ff30ab28f81e4636fa6cfba9f044a8f437a6c3

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