Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd34a052a8eab3e…

MALICIOUS

PDF

38.0 KB Created: 2020-11-04 20:23:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 60342efb01081a9defc84c551eaf76c4 SHA-1: be26e08d0635723826722c7c3da489e561f0c2da SHA-256: 0fd34a052a8eab3ebf84f1735d0cc83ce227436e72898d3645468dfe593670bc
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a direct 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.link/123?keyword=wish+tv+closings, is the primary indicator of malicious intent, likely serving as a lure 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.link/123?keyword=wish+tv+closings In PDF document text
    • https://cdn-cms.f-static.net/uploads/4402261/normal_5f90da9216d00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369655/normal_5f8d0276a72ec.pdfIn PDF document text
    • https://getawotenag.weebly.com/uploads/1/3/4/4/134443600/rudoxirezodifi_xizovawip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f870e34e1265.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392452/normal_5fa1ecd7e3c17.pdfIn PDF document text
    • https://tenasusuboziwid.weebly.com/uploads/1/3/4/3/134349012/soworaxane_welifedolaxa_webibitapaj_napip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417818/normal_5fa1501a27304.pdfIn PDF document text
    • https://vebaruroximowut.weebly.com/uploads/1/3/4/3/134342498/8693802.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403543/normal_5f9cfbff2162f.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/61b7f24a-9738-4b16-8da2-465a21560ee6/angels_on_earth_renew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4430cbe9-1db8-433e-a269-4a7748d00058/warm_white_led_christmas_lights_bq.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d471c681-6618-4f47-ba76-2d5e57397e63/pijipetozuxutefe.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_off00004b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B14 4496 bytes
SHA-256: a721459299ce9ecad4c47de5c6bd91d644ab4446affd40b2ac8ff2ad21b3f5cc
font_01_sfnt_off00005a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5F 10272 bytes
SHA-256: c293928337162c8628776632440d65e52fe964f4fe04b2b19d831a3cfd936764
font_02_sfnt_off00007dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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