Malicious PDF — malware analysis report

Static analysis result for SHA-256 466fe3fa2db20ef0…

MALICIOUS

PDF

69.2 KB Created: 2020-11-29 19:08:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 72fcddd2128548fc010426c748efbe11 SHA-1: 1af38b79fc4566d1516d3e2abbf1c1f9ea825903 SHA-256: 466fe3fa2db20ef07ba0cca01e845010f038af4528f04c642d2b6ac022a664ef
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/123?utm_term=tv+movie+christmas+in+rome+cast'. This indicates the document's primary purpose is to lure the user to this malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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/123?utm_term=tv+movie+christmas+in+rome+cast In PDF document text
    • https://static.s123-cdn-static.com/uploads/4477138/normal_5fc3bfcb69e36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367905/normal_5f8ac780d6d0b.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/71611c97-2381-4190-96e9-1713a327e29e/dolphin_mii_data.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0108b5ce-997a-467c-b876-1405b6b8dbd6/37837380009.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/najudefituvogojigivowir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93c9c405-a0c8-4fcf-8cd7-55a4a6c3c8cc/milarirekotagibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/417e84db-b1fc-4e48-8f11-bb41ba10d32e/kupekakujizaxenenejezis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c7c720a-90d6-46e6-8536-80a803b25c83/pukazirajamuferosuxewitos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df191f50-5db5-4b3b-965b-795975591f69/la_fitness_snellville_class_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30cfac2c-7f88-4f3a-9a66-0cb3f06eaa37/tekowoniwexakirixolisod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f545ae8b-f22f-4077-adb6-a72a346ba067/52815453961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c89fdba6-037d-47ca-89d4-c169b1b07043/acls_provider_manual_2015_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6789319-9da3-4a36-b7f6-07a17403265d/sewuwojadovazuwozuzi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf4be2c1-0826-4a96-8371-62788593abfc/chapter_8_lesson_8.1_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/duwupumebigomubuwem.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_off0000d27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27F 5016 bytes
SHA-256: 5d91e68bf0a366129969077e4e71f3e9a8ea9f260b8972eb9dd29bcd82db0802
font_01_sfnt_off0000e363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE363 10808 bytes
SHA-256: 4646a524009d081856b7d8e2710ca2230f625d9fa743bd2b6bb492b730143b98

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