Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd49a1b7f3ceea1…

MALICIOUS

PDF

82.3 KB Created: 2021-05-02 16:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 6219648431d9659139909aaf9792d3a2 SHA-1: 58dde8c999fcbd0dfef00357f597bd9b77d884e4 SHA-256: ddd49a1b7f3ceea1e2b998f9e0fd2dc3cb07e09e97b5be300cf7a144eff3a9c9
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 0.9995

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://gimoguvi.ru/strik?utm_term=evan-moor+homeschool+curriculum+reviews PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370280/normal_6054e351b5076.pdfIn PDF document text
    • https://cdn.sqhk.co/rifojimuna/cVAgizu/xuvekanojugubax.pdfIn PDF document text
    • http://boomerangoo.site/physics_dictionary_java_app4i0jp.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/NhjZib3/free_download_loud_ringtones_for_android_phones.pdfIn PDF document text
    • http://moneymaya.site/the_hobbit_3_full_movie_in_hindi_download_720p_worldfree4u3g9bs.pdfIn PDF document text
    • https://cdn.sqhk.co/gasidonoda/Xthf8if/pisawa.pdfIn PDF document text
    • https://cdn.sqhk.co/jusulikipe/iggh8jh/xujemojimotexuta.pdfIn PDF document text
    • http://eduha.online/74191702146z0dy7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476936/normal_5fe723640c6d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501634/normal_6024a60219f13.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366005/normal_6001c74bbc928.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452373/normal_602f1d2b36c75.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/dedinavesute/49831344579.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/how_to_calculate_interest_on_past_due_child_support.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/iti_engineering_drawing_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec9c919e-0993-486e-bc83-033fa6b14a16/how_to_remove_acne_marks_from_face_naturally.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db3e71d5-e6d0-4890-92d9-68a4aff65090/81817571626.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/adobe_reader_chrome_extension.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/40994439050.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/rikegolifivululipe.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/best_small_dvd_player_for_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/75400586930.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA06 5180 bytes
SHA-256: 945c333525f77c6875dbe61722ea85904c6c434a70fafba9cc5b3e6ee965bc4b
font_01_sfnt_off00010b8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B8E 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0001141b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1141B 11540 bytes
SHA-256: 23c21397e854b3b73474bb86638ec367f2eb6f7c56a529f3b065eda326ea6ca7

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