Malicious PDF — malware analysis report

Static analysis result for SHA-256 72aa15f7017b9503…

MALICIOUS

PDF

77.6 KB Created: 2020-12-17 15:40:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 2115140f2d961afa53fa1b1e18dfc30d SHA-1: 56c749db6d49c7a641153bf661f308bd3b66c12e SHA-256: 72aa15f7017b9503b73e9cdd29bdf840989a7bb7fd2d705c9248fb5b517c568c
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffking.ru/wb?keyword=javascript%20android%20interface'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffking.ru/wb?keyword=javascript%20android%20interface In PDF document text
    • https://static.s123-cdn-static.com/uploads/4476301/normal_5fc4a279dd874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_5f98598e8344a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417029/normal_5fbbda0d99905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479235/normal_5fbbf9781c4f1.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/906a69c0-25fc-473b-a333-7438e1beb1e6/92463497631.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/699f002c-d22d-42d6-ae17-8da477e4d278/gopajuvoxuseruvoxowuruz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12878b08-57d5-4e6f-853b-30f27f793566/kofikav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aa9172a-4d06-47e9-aef5-58749ae339c3/effie_hunger_games_butterfly_costume.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9519bfa6-dd15-40af-a218-484564dbc5f8/didaz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1ac0c8787e87989717060/t/5fc2c97bf3de5e49b5c059ec/1606601083929/manual_brake_conversion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f9bab8f-8994-48e2-b8c3-490d782b45b1/16663864116.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe26fae-33f6-4cc1-9684-edbcd5dc6d34/48569173453.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94e85b7a-6c92-4b92-a88b-75ec816bdd8d/a_arte_de_falar_em_publico_livro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8032c21-871c-4944-a24a-4725b3b28d0a/rent_increase_quebec_2016.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21b4a51b-7794-40dc-bedc-8c4bee240612/40109750078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7e0a9b7-f72b-42d0-b494-e543eed48e89/400-200-1006-806_is_true.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_off0000f1e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E0 5168 bytes
SHA-256: 63e726869378206a739f7ccd2a7b54f47c1b73627e819b7c6412065516a58f00
font_01_sfnt_off00010392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10392 11192 bytes
SHA-256: ea4dfd9fa087347397785aa3f6d4fdb67256b553aa412795a2ea520f80ffdae1

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