PDF malware analysis — malicious · 0319ff6af6d1b0f6

MALICIOUS

PDF

40.1 KB Created: 2020-11-03 12:23:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 23513372e276f734ab4e43eb6d76ee75 SHA-1: b7b78bb729b2f616065253bbd4dbf608ca78158b SHA-256: 0319ff6af6d1b0f62884b80e794003f1ab75e02bb3f60b9e9f45eb0bfaa506e7

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://ggtraff.ru/aws?keyword=download+apk+spotify+premium+free In PDF document text
- https://cdn-cms.f-static.net/uploads/4416506/normal_5f9dbc9a7f79a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408863/normal_5f95a0537147e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367275/normal_5f87434857aea.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414495/normal_5f9a32989990d.pdfIn PDF document text
- https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/desikukinoviv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408593/normal_5f97020a56f72.pdfIn PDF document text
- https://vefavufarexuba.weebly.com/uploads/1/3/4/3/134315694/luxewodofefiri_bijosod_megatiden.pdfIn PDF document text
- https://muvisodujop.weebly.com/uploads/1/3/4/3/134358588/5635367.pdfIn PDF document text
- https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/busikuditutapenus.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/xisakazelelinim/62816385716.pdfIn PDF document text
- https://s3.amazonaws.com/serogajugomiji/27674054714.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/pobuvepodag.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_off00005daf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DAF	5444 bytes
SHA-256: `075b62f9fc9307b8348b0e821c23937481cfc9c2f57d65fb6bac47bd1af71994`
`font_01_sfnt_off00007043.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7043	10400 bytes
SHA-256: `c770b41b9a8e4b55d95a5c38dcd0db3d73838a9a770af0e6ac940f4a4c3a1399`

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