Malicious PDF — malware analysis report

Static analysis result for SHA-256 9181378f4e735dd3…

MALICIOUS

PDF

94.6 KB Created: 2021-03-09 11:16:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 72b4464b5114b851b2fa57e235a32232 SHA-1: 373f61ef7ab7f85a3ead3245ea2a11fedf1df1cd SHA-256: 9181378f4e735dd3972c386c38b67bc585f8d33d192d2952d7bb66bebba04270
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 0.9997

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://ponafet.ru/123?utm_term=ramadan+activity+book+pdf PDF link annotation
    • http://berozabekep.sportsontheweb.net/tabaxumuvuvomumazunosipi.pdfIn PDF document text
    • http://gatowixipeba.mywebcommunity.org/4691585637.pdfIn PDF document text
    • http://pakirekugep.scienceontheweb.net/rope_knots_for_mountain_climbing.pdfIn PDF document text
    • http://jusojixanona.getenjoyment.net/hp_designjet_5000_ink_cartridges.pdfIn PDF document text
    • http://mivegik.mygamesonline.org/barney_stinson_books_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/chemical_admixtures_for_concrete_third_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/jurnal_nasional_budaya_organisasi.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/mapugamufowesolusabodek.pdfIn PDF document text
    • http://wipadafefuxasi.onlinewebshop.net/under_the_dome_season_2_episode_2_sub_indo.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/elements_of_drama_worksheets_4th_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9f28c62-952e-4fa9-bfea-a3ef6e7e70e9/introduction_to_world_religions_and_belief_systems_lesson_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/komowebat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e82d46bd-a0ed-4e4e-ad87-044a2df31adb/fubexarumaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/free_motion_graphic_templates_for_premiere_pro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1845423c-80b4-4219-b1f8-6b5110ab612f/how_to_make_cadmium_yellow_light.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/bacterias_mesfilas_aerobias.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e62a223c-6c78-4f4e-b127-564a8eb838ee/how_to_achieve_your_goals_in_life_speech.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/20063414526.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/basic_camping_knots.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/72011063051.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_off000114e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114E8 5368 bytes
SHA-256: 4da455c3083c7554d7b70bc2fe12f4497e4b63f5571329c50dcd1bff2508e382
font_01_sfnt_off00012735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12735 14424 bytes
SHA-256: db1a8ab7000a01f0a2677207f0e0068e8cdaa1f9a1eaf66a515672268d59f29b
font_02_sfnt_off0001533b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1533B 17340 bytes
SHA-256: bc744bbc35e6face2bc1a16d49531dfa0bc7ab88517973e6d59caf52a4c1714e

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