Malicious PDF — malware analysis report

Static analysis result for SHA-256 37063f7923181086…

MALICIOUS

PDF

35.7 KB Created: 2020-10-11 19:18:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 9aa9bf788c1ee0c11204697fa28cf007 SHA-1: ccec68dee74068362b8e5ee02804d7000b14f2bc SHA-256: 37063f792318108692af5637bd1db2c9aca2ad0f79bb7967a5daa00e8a4cc4cf
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.club/pify?keyword=minatare+high+school' is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://ttraff.club/pify?keyword=minatare+high+school In PDF document text
    • https://site-1037073.mozfiles.com/files/1037073/96063240735.pdfIn PDF document text
    • https://site-1040974.mozfiles.com/files/1040974/87481393062.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/b87fccbe-6872-4518-a747-df27a07f21e3/66792573708.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4feeba90-062f-49a2-96ea-9e70de9b05ff/bisupavozek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dafbf48-719b-4330-b583-e58d575f48db/94258771677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/3185/6805/files/gypsy_musical_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3904/files/39544728570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9677/9168/files/competitive_analysis_example_for_restaurant.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccfebc39-5d29-4383-8d65-70ef8909bb60/31738441723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85dd05df-910b-426a-8de6-855b7d2270ce/gisuzagal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/590c9c43-1dee-4a29-affc-b6faef9c0f8d/wenuzijegawejomakajalu.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_off00004343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4343 4852 bytes
SHA-256: 2544d35d09cfa6ec450f2aa6a0fcdff47597324f16a14793eed571091d3f28d8
font_01_sfnt_off000053ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53AE 9632 bytes
SHA-256: a34f72b358818976d48cdfa8326c381a1cd99d6086a4293e1901868a396d9659
font_02_sfnt_off00007491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7491 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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