PDF malware analysis — malicious · f052fe11ce23968b

MALICIOUS

PDF

46.7 KB Created: 2020-10-16 15:13:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25

MD5: 544c944b5913edc50cbffcb43f71293d SHA-1: 05d06137f6f58ad0e0549a8ebd4cd1f7c34bf309 SHA-256: f052fe11ce23968b3e58b70b947d60d08e6326b674f5ce1cfba6c6ac5de581a4

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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://ggtraff.ru/strik?keyword=2.dereceden+denklemler+kolay+test+pd In PDF document text
- https://cdn-cms.f-static.net/uploads/4369507/normal_5f8950052d59e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365653/normal_5f8711afeb7a0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366325/normal_5f88cd7cb942c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369330/normal_5f8886f129c60.pdfIn PDF document text
- https://jikolugoxolij.weebly.com/uploads/1/3/1/3/131379047/822cea.pdfIn PDF document text
- https://vikumeniwexawud.weebly.com/uploads/1/3/0/9/130969440/fubof.pdfIn PDF document text
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
- https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/2140855.pdfIn PDF document text
- https://pidofuvu.weebly.com/uploads/1/3/0/7/130739764/5686802c.pdfIn PDF document text
- https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/pusonux.pdfIn PDF document text
- https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xereromejiv-koxozirusoror-moxonujis.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375352/normal_5f897fc92f06d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368471/normal_5f8899bfa373b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376087/normal_5f897ec0ec297.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366331/normal_5f87579a201cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374002/normal_5f88ef4d638cf.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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://cdn.shopify.com/s/files/1/0431/4818/1666/files/whirlpool_dishwasher_quiet_partner_iii_parts.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5348/2135/files/gewikamaxixo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/0351/0421/files/zukixogozoxegokeporigif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8404/4705/files/wipodobab.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005b8d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B8D	1944 bytes
SHA-256: `d2d8ba4bca5928113124021099d0ae9b45393d908ac8114c36a285f30e3c1e55`
`font_01_sfnt_off00006456.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6456	5196 bytes
SHA-256: `2d0a792ea64f2f9eacecda271e07dbb22a34ff36a30fc5a57df9c32a40ae1f61`
`font_02_sfnt_off000075e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75E1	12540 bytes
SHA-256: `db2ada4f07c217a0b0e9884df46223473c0dd646455991797b624be5709ec804`
`font_03_sfnt_off00009cb2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9CB2	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

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