PDF malware analysis — malicious · 28e9b5fff05bce2c

MALICIOUS

PDF

41.4 KB Created: 2020-10-31 00:23:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 9ae7b979d2de154434aed5dc40279159 SHA-1: d76b6126b712e7d5e81d77127341c703ea580ac2 SHA-256: 28e9b5fff05bce2cbf0b8a87bc9fde041a1938ed5c4c0ccb70ee28dd47ee26b8

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=yona+of+the+dawn+season+2+release+date In PDF document text
- https://cdn-cms.f-static.net/uploads/4365612/normal_5f8a3df8a332a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368235/normal_5f8f210fea820.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/c773948c-2cc2-4299-bfaf-d79dba3e0057/victoria_beckham_short_hair_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0508/0711/1851/files/99439557545.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a734d976-8f76-4832-9264-ad8b6d3c4c4f/97488062309.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/4333/0492/files/buzubarezuverulexafozeg.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49c7c0a7-6e81-4e64-a7b0-b3f411f883f6/razozurudilonezedixupe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5eae5667-cc3d-4c67-badb-aa6b3b8f4c4c/clasificacion_de_acidos_carboxilicos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/497d4e01-4611-4675-a30e-933019b12c48/sonosekagadifanerolawiwi.pdfIn PDF document text
- https://s3.amazonaws.com/fekaduvopigab/setawimunisaxesa.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_off00006362.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6362	5180 bytes
SHA-256: `45febcb418a0284f8d4cdbf44f527efbfd2bc6ffb95d98c142deabfcd520c2c3`
`font_01_sfnt_off00007512.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7512	10524 bytes
SHA-256: `3e62b44f71e136ec8ff29a436933619a0dd9da72f2db0765d9c4fb5f82892c78`

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