Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2de5c5e467292c2…

MALICIOUS

PDF

100.3 KB Created: 2021-03-14 21:29:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 71ce11991070cccb7bb5913e95a6095d SHA-1: ae50d5213829052d3decb4f6b9bcaf34a9716e77 SHA-256: e2de5c5e467292c2896f87b7ba7e49357b3aadca6a2a6cb214fff2e298b8598f
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 0.9993

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/wix?keyword=geometry+chapter+8+test+answer+key PDF link annotation
    • http://jeratojovu.66ghz.com/bangkok_mapa_turistico.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/ibgidJx/judusojakoma.pdfIn PDF document text
    • https://cdn.sqhk.co/wisewuguv/CjiOifd/nintendo_switch_online_app_voice_chat_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/iqhjU2C/drag_racing_cars_0-_60.pdfIn PDF document text
    • https://cdn.sqhk.co/woberimi/ihXG6ib/rotokitapejajakugo.pdfIn PDF document text
    • http://lefuduzitenazig.22web.org/division_worksheets_ks1_year_2.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/ifhdxCV/ritawekovaxirufibafibuw.pdfIn PDF document text
    • https://cdn.sqhk.co/genizataxom/fIzUiVd/skylands_stadium_fireworks_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/dagosasojo/d0Zge0g/twisters_menu_alma_mi.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/gegilDy/ted_lasso_quotes_episode_2.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/luworizesupox/c_ms_access_database_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/search_option_in_android_example.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/spelling_and_vocabulary_test_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/divimupafobupesatomuzisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6d1daa1-c044-4782-b974-d32a7a5aad70/relative_clauses_worksheet_1_the_doctor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1965dd0d-6cfc-4248-855c-4cf162ab81a3/baguwakimapabewivawen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efb3ff57-62d7-4cbe-b714-5601d60d6806/wumomigeluvaxiwij.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/the_very_hungry_caterpillar_coloring_book.pdfIn PDF document text
    • http://sozufig.rf.gd/shadow_work_journal_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/25098207938.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/80905479456.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/sat_math_portion_practice_test.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_off00012b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B2C 5624 bytes
SHA-256: 21637f833a7f23f0a927742d2b879f156f280d091eb87c0e7dc1a5959845bb8e
font_01_sfnt_off00013e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E3E 14528 bytes
SHA-256: 02ff0821314e10cd5b3adc54dd96cc5f018cc57e49f5683f904643ce7e05ccd0
font_02_sfnt_off00016cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16CF2 16472 bytes
SHA-256: ee55c974fec0fac0b888961e78111a8f3dc77bd929c9c85bce47043315656976

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