PDF malware analysis — malicious · 0f0367fce54a1bda

MALICIOUS

PDF

58.6 KB Created: 2020-10-15 11:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: 95269ff177a7b23a4f120919a1fc520c SHA-1: b8d36059bb2c484b644162cfe0fd257b662523d9 SHA-256: 0f0367fce54a1bda4a91ee6d897e9262b9b7bae41f74aabf77b9959e885ec46f

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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.cc/pify?keyword=mejor+molinillo+de+caf%25C3%25A9+manual In PDF document text
- https://cdn-cms.f-static.net/uploads/4365660/normal_5f8727851ee80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367644/normal_5f8751a28d91f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365552/normal_5f878df93f804.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366347/normal_5f87a436e3955.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366344/normal_5f87c4870dad1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366395/normal_5f871ce08b9be.pdfIn PDF document text
- https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/lokidoradid.pdfIn PDF document text
- https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/sikara_wetobuzipoli_zebivunawat_rekutagu.pdfIn PDF document text
- https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/10d616.pdfIn PDF document text
- https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/3202234.pdfIn PDF document text
- https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/6a546ab710.pdfIn PDF document text
- https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/0a624dda5efcfb.pdfIn PDF document text
- https://site-1041200.mozfiles.com/files/1041200/pimavinosujow.pdfIn PDF document text
- https://site-1043613.mozfiles.com/files/1043613/petewuw.pdfIn PDF document text
- https://site-1039227.mozfiles.com/files/1039227/nimavujejepuxito.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/a779c375-6a9d-42ca-8fa1-d68f21561d44/84020542109.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/64604f2b-a1c5-4dd9-8545-7b6d5e77b8f9/75609551972.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008f33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F33	5212 bytes
SHA-256: `d425eefefcfcfbb0769209b46ea340b4f5bb2fcf7b88ce0a046bed98e069d494`
`font_01_sfnt_off0000a094.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA094	11148 bytes
SHA-256: `014147b09f007994afb4f003d9773e6a0ea86e5f82dc3aabf8df485c91e5392c`
`font_02_sfnt_off0000c509.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC509	16340 bytes
SHA-256: `8680b359cba86e2f6e9a78cf8c0f9e51b009e062d62f51157c34cd29f25a410b`

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