Malicious PDF — malware analysis report

Static analysis result for SHA-256 b08d3ed540a08e56…

MALICIOUS

PDF

41.2 KB Created: 2020-11-01 06:49:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: f74dc4a76fb54dde7697a2a102cde220 SHA-1: 025eec078e48d34e194610951cb40d7f5f7b7a9d SHA-256: b08d3ed540a08e560e484f4fa10b4102229f62913cd9b60842b01c0a96c9bb57
94 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://ttraff.club/123?keyword=missouri+special+warranty+deed+statute, is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or redirection attempt, likely delivered as a spearphishing attachment.

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/123?keyword=missouri+special+warranty+deed+statute In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370275/normal_5f94ad07175b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384820/normal_5f9620423a873.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f9032eb687c6.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/900ffc20-6cf9-44c0-beb2-1e38ea216e69/81274125158.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/623e926c-7159-4f2c-9a71-773ef8195237/camerons_current_surgical_therapy_11th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f348c310-e4b4-4c50-b7a9-98157e6bc8e9/sadodexisolofuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2c5f46f-210c-428d-b7b3-61d7a99e8ea6/crane_frog_humidifier_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/analytical_geometry_notes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8afb7804-9e52-40a5-8b3b-c392050da520/24817474205.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/no_medium_speed_on_ceiling_fan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41497edb-908a-40f6-a45f-397b0dd2a13b/the_joiner_and_cabinet_maker.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_off000063d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D5 5264 bytes
SHA-256: 58044c9793c9311ec815be7c798df48094deff30b47f18dd798588f96654c1e1
font_01_sfnt_off000075ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EC 10080 bytes
SHA-256: 699a7403eecb28920bff9e1f5155fb5b8037f4e03697306d0f2287b814799a72