Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f10d2bc272b632c…

MALICIOUS

PDF

79.9 KB Created: 2021-03-22 21:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 397430b545287da3f9cf3519f0298532 SHA-1: 5a5b6caac9f5a47374c621fc342217ca54a8060d SHA-256: 9f10d2bc272b632ca3713ef63fcbd67ee7299f8f9b8f81aaecba2cf7cf7e74f9
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 0.9994

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://xajibur.ru/award?keyword=nutrient+agar+preparation+pdf PDF link annotation
    • https://cdn.sqhk.co/tiwasusul/1cxGV5W/juganalejisulu.pdfIn PDF document text
    • http://pukebebizadolu.mypressonline.com/behind_enemy_lines_movie_online.pdfIn PDF document text
    • https://cdn.sqhk.co/soleximu/Nhe8YF0/99617777963.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/62571672058.pdfIn PDF document text
    • https://cdn.sqhk.co/xezufulozuwo/hd65KiE/mind_games_for_2_players_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/votojuxosaf/g1hi7id/carpet_cleaner_spray_for_car.pdfIn PDF document text
    • https://cdn.sqhk.co/diwamukef/gWdjjLG/gundaroo_nsw_real_estate.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/16319075620.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/busutafitufe/fbar_consolidated_report.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/55929818483.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40177690-2f32-442d-b14a-87a91220b009/5_stages_of_creative_development_eyfs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50b54962-6aa4-47e3-985d-ec5861bc3202/virisatosatelal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87c4690b-457f-4303-9483-8eee72d3afa1/what_neutralizes_pet_urine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e7d2b8e-5e51-4d0e-a98a-a83d7643cb1c/why_wont_my_kindle_fire_update_minecraft.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/what_do_you_mean_by_kinematics_and_kinetics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e350b3a1-25a6-457c-961e-5ac584c0ddd2/how_to_train_your_dragon_2_transcript_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/caudal_epidural_steroid_injection_patient_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7afb0c5a-0fe7-4827-9ec1-bb4689615bba/sosupakowekitaronoxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffdfb6c0-f78f-49d4-9404-a987209a12e2/35690402414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/260ffaf6-af38-4690-8dec-19c86b3cf562/wirumuxipowamikuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d18cfcf-6239-4404-9eb6-4d266c95d588/lego_ninjago_movie_game_ps4_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9110694-9f05-41c5-87b0-a9f757d8b070/habibi_craig_thompson_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d38c80e-8b0f-447f-830a-de3cf562d7bc/2013_dodge_charger_sxt_awd.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_off0000f9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E6 4968 bytes
SHA-256: d2f6ff9b4c40b449d32f3f9c170ad53f264817a2293173fc9e83fffb72f6cf5b
font_01_sfnt_off00010ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE5 11584 bytes
SHA-256: 97df867f3d3f739c96c7e27851aa93fe37181f1f70fcbcc340362c98f6560611

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