Malicious PDF — malware analysis report

Static analysis result for SHA-256 e58676823d7443b9…

MALICIOUS

PDF

75.0 KB Created: 2021-03-11 14:05:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9672fb699443a7994b4aac46deaf146b SHA-1: 53507d86009ecc21bf178ee9f857750b00792d14 SHA-256: e58676823d7443b90bf111b1679fac98d0ac801fd8f52ab4e783599d5ca49110
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-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://resalured.ru/award?keyword=synonyms+and+antonyms+list+for+ielts+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476416/normal_5fed040e1c914.pdfIn PDF document text
    • http://vulgargirls.fun/ledazowuwrlga.pdfIn PDF document text
    • http://shop-kid-toys.online/polaroid_p900_tablet_manual5ig5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380527/normal_5fe0c2dc93e8d.pdfIn PDF document text
    • http://remont-kholodilnikov.website/what_is_the_best_heart_rate_monitor_for_pelotonz3nar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369632/normal_5fd3850ae0ab7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/169a72b4-daea-443f-8029-f7f0e54bc569/deborovafumafipijas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e343f8-2327-44a7-a5d6-93a7bf44c73a/what_is_the_best_business_security_camera_system.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a698b704-fc11-4688-9e98-d74d54c7b244/newakodabamumusoboziloji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93c7e21e-0b51-478d-a716-9158a7729d4c/fifty_shades_of_grey_actors_paid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6e64c09-0562-43e5-afd4-aa39b3493a82/57279179772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dafd3037-fcf7-49bd-8a3f-a8d318a21e4d/pajosewikumuvuzoxisade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e101d6ed-f74d-4dea-9767-570010bccd02/academic_writing_for_graduate_students_answer_key_chapter_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5619149-39e8-4e1a-a213-8af784f1f4a7/belkin_n600_dual-band_plug_in_wifi_range_extender_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7d87a84-0c7d-4b79-b03b-3983a2d8f3aa/what_are_the_symptoms_of_high_anion_gap_metabolic_acidosis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a44403e-e427-417d-a066-5b8b93d7d034/47004485812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7881f044-4a82-49da-b7e5-a5b39609bc72/when_nietzsche_wept_movie_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2a960d0-6326-41a2-83ad-301afa74278d/nix_8_inch_hd_digital_photo_frame_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/661d621e-b3c1-4e93-bcc7-fe4a2ccd403a/how_to_put_a_kid_in_foster_care.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff407498-59be-4493-bf8e-b4a0dbd7786a/83831016048.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f6807a5-ed07-4da1-aab4-b626a50a078a/kicker_hideaway_wiring_harness_diagram.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_off0000ec05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC05 5392 bytes
SHA-256: 3a01bef0fb1dcf1b4a239258cc51869e63a7a95ddf03d7657dc9fac6b7538726
font_01_sfnt_off0000fe4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4D 9544 bytes
SHA-256: 87fc5903806b06f303b6ab8d8e64681ae666ee0baca137205a7ef00ec332a9ed

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