Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc093140d849e4b…

MALICIOUS

PDF

49.4 KB Created: 2020-11-02 02:58:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f5d919441ef37cd451b69bd193802cd6 SHA-1: 936b5d1f442281772010e9b5994ffcdde315ee02 SHA-256: 5cc093140d849e4b2d3567265dc053b9356f1f03414951d598552c0954e25a41
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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.link/123?keyword=bill+of+sale+golf+cart+free+word+doc In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f94edba73c34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410027/normal_5f9f3a7400348.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://s3.amazonaws.com/kavitokolezub/gusivekegedosoravizu.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/is_water_a_mixture_of_compound.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78d697b8-9c00-4c6f-ab7e-85498d4051a9/46784106197.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0727ba4-7fc7-45f0-9c77-a67eedfecd91/vatafawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9cb3c8a-68b9-452d-ab0a-a56047c4a2c6/arizona_arnold_palmer_can.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/076001c9-db8b-4824-a5e5-2d2ed79847d1/2900062870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba80d865-d2de-4c50-b3eb-762e815033b2/bidoluwur.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/jukozumeluxijuvin.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/vimejojetevimogom.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/wuduxubax.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_off0000720b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x720B 5012 bytes
SHA-256: 0728d2b61426899d69eb58da4fa2c8945e6c58981b02fc311481aee3fb0f0ac0
font_01_sfnt_off00008339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8339 12352 bytes
SHA-256: 589819a77338bb20ff4e6af7c640e5530238a89d59343463607c73c5fe7f12a1
font_02_sfnt_off0000aae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE5 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3