PDF malware analysis — malicious · 4e6acd487823c24c

MALICIOUS

PDF

34.7 KB Created: 2020-11-04 01:26:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 1b439c5f093501627f5e5bdd41305729 SHA-1: 3d567e453a6be1bd8661c4af8dfb563caa48f874 SHA-256: 4e6acd487823c24cdaaf36a0c1bdfbfe0680c83f734e74946a65f56a870778cd

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.link, which is highly indicative of malicious intent. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs suggest a phishing or malware distribution attempt, likely initiated via 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.link/123?keyword=windsor+system+saver+salt In PDF document text
- https://cdn-cms.f-static.net/uploads/4375515/normal_5f9be943774e5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369305/normal_5f945a70832f3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407081/normal_5f920199e9489.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366676/normal_5f87e3b625b27.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386335/normal_5f9bad7d5c49a.pdfIn PDF document text
- https://sisodiwitamusoz.weebly.com/uploads/1/3/2/6/132681746/2420425.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368246/normal_5f8bf5c98eda1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377928/normal_5f8b632418f8c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/zoromexemuzid/29843861518.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a6e07c93-154b-4702-a9d0-3215743fc6c0/69758530925.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/48e42774-1056-40ea-95c7-43ccfd19a414/mezumagalenogajig.pdfIn PDF document text
- https://s3.amazonaws.com/vavabi/bruce_lipton_deutsch.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000049d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x49D1	5148 bytes
SHA-256: `bb82c48b89293fd66040dee13a920bc9fa97247d196bdd36d2fca9eb52b47bd1`
`font_01_sfnt_off00005b4b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B4B	10236 bytes
SHA-256: `d19c3c5178159e8c30504a9aff5faca33d918257f0422950f7adcdaad8b2cd65`

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