Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ef9ce5331a648b…

MALICIOUS

PDF

84.4 KB Created: 2021-03-28 15:36:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2a15bc31be392c1aaf65e313085ddf32 SHA-1: 54792e66857f9c886a73ac2142ebd52ad1024921 SHA-256: a7ef9ce5331a648b474e5953bd3a18d6aba12ecfd08c07a0e902cf5093bdf3a3
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-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://vilenefex.ru/wix?keyword=death+soul+eater+voice+actor PDF link annotation
    • https://cdn.sqhk.co/ladesajisama/ghhhjbl/2_forms_of_government_issued_identification.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421200/normal_5fe9af52b3c3a.pdfIn PDF document text
    • http://lesantyqas.online/examples_of_satire_in_animal_farm_chapter_1tp0do.pdfIn PDF document text
    • https://cdn.sqhk.co/kabawamurelo/ehhjfqS/bheema_movie_video_songs_mp4.pdfIn PDF document text
    • http://lesantyqas.online/how_to_thread_singer_sewing_machine_5050c6sbut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462056/normal_6044d8fb6feac.pdfIn PDF document text
    • https://cdn.sqhk.co/kapideto/acHSict/best_electronic_drum_kit_for_beginners_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501482/normal_603cb534c5a4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480598/normal_60512381d6128.pdfIn PDF document text
    • https://cdn.sqhk.co/migawudewiw/aAjfgeW/xebujewewowukubeteso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413347/normal_600b6a3da2391.pdfIn PDF document text
    • http://want-seo.ru/skam_temporada_4_sub_espaolzhjpz.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/mizeteb/jipakeri.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/70404402955.pdfIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/amoeba_sisters_recap_classification_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/geluf.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/how_many_words_in_each_chapter_of_harry_potter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/098d3dc8-f26f-4735-9c8e-d43f20bc90ab/online_criminal_law_courses_canada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93a1159a-a14a-4efa-b976-69e41120f02b/are_dyson_ball_vacuums_worth_it.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/67104281003.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6617cb3-c97e-46ef-9d74-6198922b35bc/kubota_l3010_engine_oil_capacity.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/75671449630.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_off0000fd44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD44 3720 bytes
SHA-256: 41d589ef6af278c0d0b2132fffd3e060bfb36aa66e43c19b5ead5be181a08203
font_01_sfnt_off00010aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA1 4944 bytes
SHA-256: 980422de37d235105dfdb095c2567abadb02c03c6bd98b0993688294e0a03e20
font_02_sfnt_off00011b76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B76 11576 bytes
SHA-256: 9d2466aff2aaa29a82425ee479883040d0830137cfc0a3c3eb3ffdf90cb77c38

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