Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c423143811d2fcd…

MALICIOUS

PDF

44.2 KB Created: 2020-10-17 06:03:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d88b2fc5aa549f14090b98355f603bff SHA-1: a64896daa10b7575b3227c4dca8ca7cef35c95c3 SHA-256: 8c423143811d2fcdea4ea0edcffec2f7f05623896dc367cadb9e6b29756fbab0
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://ttraff.me/123?keyword=bascetta+stern+faltanleitung+pdf, is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious redirector suggest an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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.me/123?keyword=bascetta+stern+faltanleitung+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_5f8a288674c94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365542/normal_5f8748810ed36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5f8a514d0e443.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374379/normal_5f89f7b6f17a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372681/normal_5f89c7d786dfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373517/normal_5f88f2db1f54b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367674/normal_5f888d9c42609.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/kodubivujolefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/xoxamorigorak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9620/2659/files/libro_amor_y_respeto_para_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9655/5168/files/algebra_2_eoc_practice_tests.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e63d0205-4897-404b-a377-6300489dc11d/21760048664.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e4e1f5e-95f3-4226-9c62-b39b06231c73/manimifitolen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e826a2-1214-468a-a3ac-7cb4025e9d0c/56666847636.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9c7ef25-397e-4378-ba0b-ea3b95c6e29b/58585977097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1355ea37-99bd-4f5f-ab96-9afe8c5a94be/zenalaxejubujetabafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8762fc1a-f2b7-4a37-ac24-77b16ff09bac/vopisizi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb58f570-85bd-41b2-8aa0-513cc4e31f4a/kovebakaduwomekamapab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/27233359128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2454/7477/files/juvenile_delinquency_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6555/9190/files/minecraft_skin_template_png.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_off00006a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 5372 bytes
SHA-256: 80e87d48625b046f6529f0854d62225781e8ea5b833ee460fc00d8e0babdc94b
font_01_sfnt_off00007cab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAB 11648 bytes
SHA-256: d3259e1d30a9bc17f98012bf43a9675b02c36b5f4cbe277020caffd50c8fd6c9

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