Malicious PDF — malware analysis report

Static analysis result for SHA-256 7435466a105eda4a…

MALICIOUS

PDF

79.1 KB Created: 2021-04-04 06:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 629ee716f7ffc9ec91e224a6f1e8778e SHA-1: 8f9ba4099c568ba043a04ac8ec25655980076ca1 SHA-256: 7435466a105eda4a58feaf06a3389869a3e7131d5d98a648fb9732eb76c5b312
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV and ML classifiers flagged this PDF as malicious, indicating a high probability of malicious intent. The presence of an external URI and the overall classification strongly suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/123?utm_term=military+going+away+party+invitation+templates PDF link annotation
    • http://vigikigopaloze.medianewsonline.com/autismo_leve_moderado_y_severo.pdfIn PDF document text
    • http://akillidestekbasvuruformu.online/wefunaa0q7.pdfIn PDF document text
    • http://shoop-fe.ru/13503443388py57b.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/b5a40ff3-e492-4e0c-b4e7-94a40cd3216c/nitro_pro_9_crack_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/gaxixozojiguvuluwetite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d11176fe-5578-4004-b164-9ef511e94cc1/what_sign_is_the_hierophant.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/jituk.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/benzene_chair_conformation_point_group.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/algorithm_design_manual_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/specification_sheet_l_g.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/jamalenolikigofen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14f37db6-8653-4f9f-b563-cf9c1d284523/mesevabunitipigigepivi.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/double_line_graph_worksheets_7th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/rheem_prestige_code_45.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7985a888-e5de-4f93-92de-e607e0ca3ba6/kagebiminidid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1adfb206-75fd-45ea-8989-db766a3f4df7/best_study_guide_bible.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5832d41-29b4-428a-9eda-c05e62b708b0/46258338016.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bad5ee0-72d4-40b0-b881-f67b816d2a3a/79903324774.pdfIn PDF document text
    • http://kewetanetoza.atwebpages.com/sipolaguke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3db9ed22-a07c-46c5-9547-eb9e39f8b9e2/uppababy_vista_rumble_seat_william.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_off0000f5f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F1 5400 bytes
SHA-256: 4d4c5faa8c4c5797e2aa44e0bf9b87a7242752520126e14d9a51cfdc4e56621d
font_01_sfnt_off00010864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10864 11348 bytes
SHA-256: 3d45b1d9d8a93fd161a594d047636003ffbd4337a17aaee7a3abbfc69bf968c5