Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a9208c73069de2…

MALICIOUS

PDF

46.0 KB Created: 2020-10-03 03:34:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9eabb2c7c95666cdee31f23717c8a6b0 SHA-1: d97c5f14d316133cf138b49403659f3f47695a28 SHA-256: 60a9208c73069de2d6642887adc37cb19955b9e11986233adf4aa7cc0091e641
94 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. No scripts were extracted, but the presence of a malicious link indicates an attempt to redirect the user to a harmful 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://gettraff.ru/strik?keyword=optimal+greenhouse+stardew+valley In PDF document text
    • https://site-1036637.mozfiles.com/files/1036637/puwapolejojem.pdfIn PDF document text
    • http://files.theglassgoddess.co.uk/uploads/1/3/1/6/131637055/fdd9a3b3.pdfIn PDF document text
    • http://files.127onyork.com/uploads/1/3/0/7/130740178/lexoguviz.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/b2ff27a1-6f5a-4acc-b06c-e4f5b1f17b5b/19632769427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45a0bef0-35ee-432e-8e94-0d7a9d07119c/fofuzobimu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87cec736-28fe-43ed-bd8c-24d5b08e72a8/13207972352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff1a0e08-177b-4c57-b941-4a1d3d2b432c/31918384189.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99e18523-804f-46bb-a0b8-a4f7cacaaa02/16279098723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/29091791481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7895/7718/files/sonatobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/loss_of_hope_synonym.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/genetics_and_heredity_review_sheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7968/7587/files/xisezufiwarixupuwifofime.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_off00007564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7564 5656 bytes
SHA-256: e5cdd22a083bc15070be26cd5a69b16c9eb86e081730141bc6bef85fa3f01217
font_01_sfnt_off0000888a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888A 10260 bytes
SHA-256: d7862912da1da9e6a346a1eec4e40414b8d5932be197045a4dc90518db7dc915