PDF malware analysis — malicious · 27b79bbae33acfd3

MALICIOUS

PDF

42.3 KB Created: 2020-08-09 01:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b21dc9109ea498873d2730e8796958af SHA-1: 754bf232cfd243680e101291e9ce8576b6f4f8ff SHA-256: 27b79bbae33acfd3cfe72d8b5dbefc2e944ba0c94a442b68c740fd7d2d75a471

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document exhibits characteristics of a link farm, embedding numerous external links. A critical heuristic identified a link to a known malicious redirector service, https://ttraff.ru/pify?keyword=antibiotic+spectrum+of+activity+pdf, suggesting an attempt to obscure the ultimate malicious destination. The ML classifier strongly supports the malicious verdict.

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.
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.
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.ru/pify?keyword=antibiotic+spectrum+of+activity+pdf
- http://files.starwarsjournal.com/uploads/1/3/1/8/131856705/d4ecace2.pdf
- http://files.smithcustomdesigns.com/uploads/1/3/1/3/131378918/7139561.pdf
- http://livig.adclife.com/uploads/1/3/1/4/131438641/4188751.pdf
- http://files.youthactionmemphis.com/uploads/1/3/1/0/131070178/41ccea.pdf
- https://cdn.shopify.com/s/files/1/0433/7487/0689/files/free_bicycle_repair_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/encyclopaedia_of_islam_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.pdf
- https://cdn.shopify.com/s/files/1/0427/9438/5575/files/angular_js_book.pdf
- https://cdn.shopify.com/s/files/1/0434/9421/1750/files/bike_parts_name_list.pdf
- https://cdn.shopify.com/s/files/1/0428/9213/2508/files/fejowolewuvefepegajezo.pdf
- https://cdn.shopify.com/s/files/1/0432/8872/3616/files/78583699802.pdf
- https://cdn.shopify.com/s/files/1/0437/5491/3943/files/75258155044.pdf
- https://cdn.shopify.com/s/files/1/0430/9712/9109/files/dubeporarizixigeleg.pdf
- https://cdn.shopify.com/s/files/1/0432/3124/8542/files/mockingbird_walter_tevis.pdf
- https://cdn.shopify.com/s/files/1/0440/9671/6952/files/51121634512.pdf
- https://cdn.shopify.com/s/files/1/0435/8435/6507/files/rasudufojo.pdf
- https://cdn.shopify.com/s/files/1/0431/9143/5422/files/pezowavufalodajajelo.pdf
- https://cdn.shopify.com/s/files/1/0437/1644/4315/files/65500555288.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000677e.bin` `227bef2646a2da904ac88cdd08cedb516bbcf9224bebf4d6b29c183565598d02`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x677E	5560 bytes
`font_01_sfnt_off00007a5e.bin` `d02ee7964f845971497b4cde28918d65e9de062b914329bb27254f08f9b24cbd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A5E	9888 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.