Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0536b1729b4e641…

MALICIOUS

PDF

72.5 KB Created: 2021-03-19 23:25:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dfa8ca327e87953ad08989691a1a43e2 SHA-1: 23f04712d13d6cb73016df97091981cd7efe9efa SHA-256: f0536b1729b4e6414aba5aebc0ff865b2ed635a0ee09c9779c59a2bfb8902875
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to 'dugedepap.ru', which is likely a malicious domain used to host or distribute further payloads. The presence of a 'download button' heuristic further supports the phishing lure attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dugedepap.ru/award?keyword=synonyms+and+antonyms+list+for+nts+test+pdf
    • https://static.s123-cdn-static.com/uploads/4404116/normal_5ff3bd49ee81f.pdf
    • http://morpeoplelife.ru/nike_air_jordan_1_fearless_release_date229om.pdf
    • http://soul-felt.com/maguxezokutnwjm.pdf
    • http://buytoday.cc/niburikobetubafijofeanhhb.pdf
    • https://static.s123-cdn-static.com/uploads/4369904/normal_5ff5c4d5249db.pdf
    • http://yachtcharter.group/72569413185fe7ma.pdf
    • https://static.s123-cdn-static.com/uploads/4450038/normal_60069f22f288e.pdf
    • https://cdn-cms.f-static.net/uploads/4370560/normal_6041939ac9705.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/seriposuj/zugudupodixumaga.pdf
    • https://uploads.strikinglycdn.com/files/9a3a4970-9364-40cf-a5fb-b34e89305ac2/define_sampling_with_replacement_in_stats.pdf
    • https://s3.amazonaws.com/mukutud/how_to_calculate_velocity_from_position_time_graph.pdf
    • https://s3.amazonaws.com/jotizifime/7555177485.pdf
    • https://uploads.strikinglycdn.com/files/68775809-7e82-4570-99a8-21a9cb426903/mechanics_of_materials_5th_edition_solutions.pdf
    • https://uploads.strikinglycdn.com/files/20dabb18-f191-46ff-8eb3-7555dee10b9b/how_do_you_program_hamilton_beach_flexbrew.pdf
    • https://uploads.strikinglycdn.com/files/bf14cf24-21a8-451e-94b5-568ea1b79b4a/taribumezamofumow.pdf
    • https://uploads.strikinglycdn.com/files/c2147d0a-68ea-453c-903f-3beb960b0641/how_to_install_focusrite_scarlett_2i2_on_windows_7.pdf
    • https://uploads.strikinglycdn.com/files/b63d97f3-4ada-4654-8b77-ce3d8765139d/schlage_camelot_satin_nickel_entry_door_handle_set_with_accent_door_lever.pdf
    • https://s3.amazonaws.com/sixenogafopoj/analytics_platform_salesforce.pdf
    • https://s3.amazonaws.com/punagilelabon/varepetuwuw.pdf
    • https://s3.amazonaws.com/fatisake/feral_druid_8._2_guide_pvp.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df2e.bin
5122eff8db54e62df68ec32cd151c5f57227532cd8daad0cd49a3e0a46ed5b82		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2E 5392 bytes
font_01_sfnt_off0000f174.bin
6c3122e44c110558f0c7e539d3cb254ddc9334aeac44c653c263e24533100716		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF174 10328 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.