Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b7e32f006eb2c1…

MALICIOUS

PDF

77.3 KB Created: 2021-03-19 05:50:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: e133044b64224e168299ab139df03b62 SHA-1: 2498920eda5f6d2a2ac6a114e6d537a7dcbbf415 SHA-256: e3b7e32f006eb2c1a5646157eabe072ad5c6364ff1b8a84fe02a1d56794631a2
104 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that is likely malicious, as indicated by the ML classifier and ClamAV detection. The document body, though heavily obfuscated, contains text related to credit reports and urgency, suggesting a phishing lure. The presence of embedded URLs and the overall detection by multiple security tools strongly indicate a malicious intent to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://maypoin.ru/123?utm_term=best+site+for+annual+free+credit+report PDF link annotation
    • https://cdn.sqhk.co/jarogofef/gc5jhig/offline_3d_world_map_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/senogewuki/gugdyii/hockey_goalie_stick_size_chart.pdfIn PDF document text
    • http://dvestideyli.xyz/schlage_camelot_entry_door_handle6dbzo.pdfIn PDF document text
    • http://labiosdewonda.com/mini_story_lessons_englishduuns.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/jcgiYJB/warrior_princess_final_run_wadena_mn.pdfIn PDF document text
    • https://cdn.sqhk.co/mivesavif/wij6hex/2832847220.pdfIn PDF document text
    • http://smartcreditus.info/wurudelizosovobopiji91mvq.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/jigezilor/crying_eyes_meme_template.pdfIn PDF document text
    • https://6131fb9f-3080-406c-a6ab-c4686b6a2f6f.filesusr.com/ugd/52be6f_07f928cb10214e31bd26ec3b37681368.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dc9b3c6-008e-4bbf-861e-8c61b8617e56/wojelikunowimel.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/bluestacks_installer_for_windows_10.pdfIn PDF document text
    • http://ginowane.onlinewebshop.net/the_carrot_seed_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/combining_like_terms_worksheets_7th_grade.pdfIn PDF document text
    • https://33da92c3-26de-4f6b-bf12-1693cb6a6e79.filesusr.com/ugd/0307f2_b955c48851514001a85e6b5ea3f5492f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8daa234a-50bf-4256-b8f6-fbc67b7235ee/molar_mass_problems_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/50909475828.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fd35c27-dcc4-45d5-8632-b0213e7f7a74/xodomutixezasa.pdfIn PDF document text
    • https://b01ec662-dec5-4f54-b977-8708717d6054.filesusr.com/ugd/07e02c_c06d669aec9843fdab31ea426bfff229.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e72c55b3-fcbc-4dea-bcc6-2870ae1a58c7/cant_find_plantronics_bluetooth.pdfIn PDF document text
    • http://fepetixapokurob.myartsonline.com/rsos_admission_form.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_off0000f099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF099 5200 bytes
SHA-256: 52fa32c8f5037250848cdcf93cb23e2bad6809540735e31eb81a525263be5bc0
font_01_sfnt_off00010258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10258 11036 bytes
SHA-256: 7fbc7185bf522c0bc32443daa366f984c06aa8958a354bb9455d3fcab9ab52c9

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