Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc17059897aa7904…

MALICIOUS

PDF

111.3 KB Created: 2021-03-20 18:24:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 5a82f91fc983e6b11ec73f42f01516ba SHA-1: 9cbd443d78ffda922cf25c724edf2080f0338c26 SHA-256: dc17059897aa7904a579fd63e12c6d8fdaaa8563394f84a9f5d3c318549f0ab3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead the user to a malicious site, potentially exploiting PDF vulnerabilities or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://resalured.ru/strik?utm_term=what+were+the+terms+of+the+treaty+of+versailles+that+ended+world+war+i PDF link annotation
    • http://fosipuzo.mypressonline.com/what_is_the_price_of_lamborghini_gallardo_in_india.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465025/normal_5fd77aaa13df4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380539/normal_6033dccac506c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370309/normal_601bb6ed56b42.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488103/normal_5fc7342747383.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/1b4a0ac9-0272-4a01-99da-553f0c895bde/duzenafivugametosu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42c41cef-54cf-4d41-abbb-2ac4e40e32c0/mekifu.pdfIn PDF document text
    • http://wuwedilejom.myartsonline.com/69755450191.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d866e12-8dfc-4048-a175-05a6f0136c7c/what_handgun_do_army_rangers_use.pdfIn PDF document text
    • http://gupizamowakop.myartsonline.com/wezukuxur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bdc23f6-b249-4eb4-8616-a7a3e4b1f606/kenmore_microwave_over_the_range_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e720d87-6e4e-4bb3-aece-61e694f60da4/lista_de_los_verbos_irregulares_en_ingles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20bb9168-9c59-4286-8f1b-dfd2e7275280/49801440299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e68078b9-9a15-48b9-ac24-65e0b6c233f4/74896894910.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/499c8c6f-8fc2-4a9f-9cd2-7bfab6d13f51/42566671198.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90bccfb8-d170-4845-8ac7-812f75ba8a58/posing_guide_for_male_models.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d52a97d3-3f1a-4aa8-8376-05f5f4f017fe/how_to_read_coordinates_on_a_survey_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7c35cee-0a6b-4158-bf87-2a570456ecdb/how_to_fix_opal_ice_maker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1ef8b53-1da5-46bf-b2b1-5f9c2808a9f6/10180504262.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cf458a5-45cd-4b30-9163-b6af7e962eb6/vinewonexa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aa86d7c-654f-4060-8dfd-d81631a8e7fd/star_trek_discovery_season_2_review_den_of_geek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a03afff-dc6a-45fe-a1ab-08776a07c812/81407465820.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000166eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x166EB 5200 bytes
SHA-256: 606aae1f1b351da8c3e7bb0dd04cdd41bc27e34a47bf58babfb67da7b5814c5e
font_01_sfnt_off00017892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17892 11592 bytes
SHA-256: ed2ce1e4d8bb87df8ce2d29b49e4d6a69dc43a63acdd064adbd85c34574c8605
font_02_sfnt_off00019ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19EC1 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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