PDF malware analysis — malicious · 4bc8bbef60787bef

MALICIOUS

PDF

45.7 KB Created: 2020-10-15 19:01:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: b03b84cccf479fa113460098b5b726cb SHA-1: ebd4404c11241211fb6ada7f7cc77bb73fe19df0 SHA-256: 4bc8bbef60787befd30caf4f6c9e5b579699bf5849bd8c5ee9d7a50df03868b4

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://gettraff.ru/123?keyword=civilization+6+android+apk In PDF document text
- https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/ecea2be33.pdfIn PDF document text
- https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/bagisegodex-famasunaxuku-bugofotebisig-sisajiriwa.pdfIn PDF document text
- https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/lokujevu.pdfIn PDF document text
- https://liwifaxuje.weebly.com/uploads/1/3/0/8/130874244/4cf41af4.pdfIn PDF document text
- https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/bawap.pdfIn PDF document text
- https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/ad1f83.pdfIn PDF document text
- https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/e27909d0be.pdfIn PDF document text
- https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/devuxupujikeninaferi.pdfIn PDF document text
- https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/pusiwujaras.pdfIn PDF document text
- https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/ac294d2f8cc6430.pdfIn PDF document text
- https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/5f8fa55b6.pdfIn PDF document text
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/0cbd7f35736ab.pdfIn PDF document text
- https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/batagebexi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366399/normal_5f872ceb3c280.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367922/normal_5f8762cc18a07.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367645/normal_5f87b2f15b3fd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365660/normal_5f8718841f726.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365656/normal_5f86f5a75eed7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367621/normal_5f87504c29eff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367303/normal_5f8743a210a76.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366309/normal_5f87624049fc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365594/normal_5f874497681a9.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/e668eab2-3525-443b-aa8f-1272fef3db03/93440143339.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ac147bb-ef5e-4ad0-81cd-6a8fda2ea4f1/sasofunabixanoziruzez.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_off000072e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72E9	5008 bytes
SHA-256: `b6e39302fda2201e881faaf26ece383f0fa94e03ca2ec47f1ea190ed0cc6a84b`
`font_01_sfnt_off00008408.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8408	11072 bytes
SHA-256: `b3b35644766e619a3caf5a417789f3d4efe6b82f61d63017662d411d7af5756e`

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