Malicious PDF — malware analysis report

Static analysis result for SHA-256 d567d4ca3f74bc33…

MALICIOUS

PDF

74.0 KB Created: 2021-03-10 11:43:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5f73e412192feb3a4dd8b39c7f9e5fef SHA-1: 103514e2e1535e96606ec3e07c5157b762a9e4ce SHA-256: d567d4ca3f74bc3395e3e5fe135a0dc384c4fdf84af808edc89a098090102e1c
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://midufefew.ru/wix?keyword=world+war+1+webquest+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4480899/normal_5feb4a6848df9.pdfIn PDF document text
    • http://fevinoreniwelik.sportsontheweb.net/funivo.pdfIn PDF document text
    • http://nitiwomifigurod.mygamesonline.org/60281613583.pdfIn PDF document text
    • http://dokaxirugik.medianewsonline.com/lowrance_hds_5_gen_2_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480899/normal_6007bdc45a273.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/pronoun_worksheet_for_3rd_graders.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478950/normal_5ff0f7590f7b4.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/sazariwapa/bogan_movie_flute_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/excel_indirect_address_to_another_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/prentice_hall_gold_algebra_1_cumulative_review_chapters_1-4_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/76248878291.pdfIn PDF document text
    • http://madepadejatutof.onlinewebshop.net/juegos_de_vestir_chicos_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/laramie_wyoming_weather_report.pdfIn PDF document text
    • http://gakilasefit.myartsonline.com/john_deere_lawn_tractor_service_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/74459273267.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/luvur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1c8b1d7-0117-4910-8207-6a772f9acab5/que_es_un_lider_liberal_ejemplo.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/how_to_best_study_for_cfa_level_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abbc19dd-6362-43d5-b95a-9e5ab83bf80c/59818107721.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/94872468005.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/appraisal_answers_for_managers.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE503 5240 bytes
SHA-256: ebeaf7f4a282aaa5f6b37ee324f5c4fcecedd75e8ba9030903f6603d8e6bb69d
font_01_sfnt_off0000f6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F9 10536 bytes
SHA-256: d245f860ba63256418c08d899e713aaeb247c9ecfa197f10e97ab6b75a141372

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