PDF malware analysis — malicious · 2e7c35e14bcf09bb

MALICIOUS

PDF

61.8 KB Created: 2020-10-20 18:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: a2eb533b0ad4ab96612f98b2dd325bfd SHA-1: 71c5e9d3537016d735c5dd784f96ffde66844a24 SHA-256: 2e7c35e14bcf09bb08778c8c4573b2adc15c4438743d456acf798408b7cb19c5

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://ggtraff.ru/strik?keyword=cual+es+la+diferencia+entre+magnitud+y+medir In PDF document text
- https://cdn-cms.f-static.net/uploads/4366652/normal_5f882e3f84e1e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365545/normal_5f8d144779b78.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377112/normal_5f8efc600ea45.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366339/normal_5f8aa1f269756.pdfIn PDF document text
- https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/8827475.pdfIn PDF document text
- https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/4535287.pdfIn PDF document text
- https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/zigawufusewe-jubizagexeka.pdfIn PDF document text
- https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/8deb16.pdfIn PDF document text
- https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/1517423.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388818/normal_5f8d7b40c55f1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365589/normal_5f8754fa6ba32.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/3587e723-f8d9-4f6e-8194-39dd2bac29e1/topudifisawufebak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f2a2e26-49d1-4e72-8bac-4ba8d0557f62/lovosoberepewa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63a7a3b8-6e75-4073-9af2-9345ef7630f1/45497412696.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/98ecf05d-5f54-4518-9fb9-195a3cc09d3f/jatanoladelubisix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53967693-5f06-462c-a6d4-1eaa04d0d4f3/72626297491.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/7358/3289/files/derajom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1231/5545/files/google_nest_thermostat_installation_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9429/3142/files/peg_perego_parts_near_me.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6779/1765/files/zutudarulak.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_off00009130.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9130	5348 bytes
SHA-256: `af9abccc2c46c9ff9f7412b4aca9718dda2b51ccf0e2cf446c3b51bf953a1c97`
`font_01_sfnt_off0000a34a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA34A	15208 bytes
SHA-256: `aee854a634c59aebda3002aa1bb74c090fdf7eeaccc80be1f4c528c40b1003d8`
`font_02_sfnt_off0000d274.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD274	16060 bytes
SHA-256: `fe9571d28fae7a61d971a76d6a96357abdaf1bd28a19be60b9745fe6aa3ab5b8`

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