Malicious PDF — malware analysis report

Static analysis result for SHA-256 469ba865e46641e6…

MALICIOUS

PDF

76.4 KB Created: 2021-04-10 05:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 799594f0154b9c8779e19a20c7a33e72 SHA-1: 714178f498414436ffaba39f365e2bc19fed005e SHA-256: 469ba865e46641e603eb7d084f4f274d468d124e060803cd16e68ab2658533b8
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 0.9998

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://golowaki.ru/strik?utm_term=how+to+use+the+singer+prelude+sewing+machine PDF link annotation
    • http://ca-manalapan.space/dell_precision_m4500_laptop_battery2brp4.pdfIn PDF document text
    • https://cdn.sqhk.co/kosojevevoxo/fgdrghf/crazy_for_speed_hack_version_download.pdfIn PDF document text
    • http://idealica-italy.site/when_will_there_be_a_covid_vaccine_redditl6c54.pdfIn PDF document text
    • https://cdn.sqhk.co/rekutadis/ibWrNW7/simple_compound_words_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/netimawifes/rDahehg/buveraratukemiva.pdfIn PDF document text
    • https://cdn.sqhk.co/rajosibakulu/gfJnggT/stor_mor_self_storage.pdfIn PDF document text
    • http://texifudosino.mygamesonline.org/celebrity_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/kegimovotol/hdYghpu/49407721061.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/cdbd8018-e7b9-4d2f-93b1-e01f296dd5cb/united_states_army_rangers_logo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55eaddd2-3440-414b-aaa4-2f523bc3b1d6/bezopisixodipakimedeg.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/browser_ringan_untuk_android_ram_kecil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51e846fe-3fae-4a68-a4da-61e5696435c8/1734-aent_series_c_aop.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/free_resistance_band_training_program.pdfIn PDF document text
    • http://widusop.atwebpages.com/noida_building_bye_laws_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/sowusuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/40155481189.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/dd_3.5_tome_of_battle_errata.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e36c78a9-6e7c-4724-9652-40fbd0484a1d/vardo_wagon_plans.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac556a74-aa39-46c1-9573-4707b8f51d04/how_long_to_study_for_med_surg_certification.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_off0000eb2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2B 5540 bytes
SHA-256: 6aae5866978032cf3c12505563daadb0cc1ff4c07d90e59339c3d5129aa64a93
font_01_sfnt_off0000fde3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE3 11268 bytes
SHA-256: 4105a10dd7dcb00f5be0c6729de1cb9c25b861f4fc710c601bc8ff8b24cdb5f6

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