Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc32e6c509f461b…

MALICIOUS

PDF

74.9 KB Created: 2021-03-24 00:11:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 74f46a086007a3a4209b1f3eb54f3a96 SHA-1: 753e89b2d6c6715849081333ce6e0ab09b736e5b SHA-256: acc32e6c509f461b6fe11daf8968ab8c155cb693b42e9a0425326cc2f6f7d792
96 Risk Score

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 0.9998

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://baarspo.ru/123?utm_term=endometrial+cancer+pathology+report PDF link annotation
    • http://sutovuresas.mygamesonline.org/rational_functions_practice_test.pdfIn PDF document text
    • http://wamipivifubape.sportsontheweb.net/46691008583.pdfIn PDF document text
    • http://tonagruz.ru/how_hard_is_mcsa_server_20168iwhf.pdfIn PDF document text
    • http://lngcliente.com/actividades_de_lectoescritura_para_nios_de_segundo_grado_de_primaria_para_imprimirsdwu1.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/temujonuwu/senesowuwi.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/medici_masters_of_florence_soundtrack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/zuzefesurapi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e674d64-b488-42fe-ab4e-faef70bea3cc/ketobifozaradonivu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05e5b3c8-af63-46fa-b2da-3a2f03da51a7/the_secret_book_review_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5626038-2c79-485e-b56c-739f49364e53/zuxaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fad0da9-6d1f-40b1-9b8f-2215f6945dc3/best_solvent_for_crystallization_of_benzoic_acid.pdfIn PDF document text
    • http://peledopa.myartsonline.com/58022506661.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cab570e3-f3eb-4351-b5a5-ec1b404ed022/kivifas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6eaeb0cc-9e9a-490d-9cbb-e0aecb0445be/propresenter_6_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/hp_officejet_6500a_inkt.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/odia_video_song_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6329983-395c-4726-8383-4199efab42b8/pebixolirozelepazomeso.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/how_do_i_tell_what_year_my_john_deere_is.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_off0000e9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B2 5368 bytes
SHA-256: 6685695b49a6ac362d615f0f5fb459fa6eee87827eb2cd1f100364d2bb3ec11c
font_01_sfnt_off0000fbd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD2 10148 bytes
SHA-256: 64dc399c06c7422163cf35eb8f3742ca80f9d32c8f9bc16b55297d233fbaf956