PDF malware analysis — malicious · df3184c86211c6de

MALICIOUS

PDF

32.9 KB Created: 2020-08-29 04:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 383e343101b56c0f373c0ccc572b12a4 SHA-1: e036ffddfad2085b6a65590cfa6b4b8048b9413a SHA-256: df3184c86211c6de77bc4999fedafdf3391284f6686971ea02ef8a9fc9133b15

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on 'static.usrfiles.com'. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be luring users through a link, potentially disguised as relevant content, to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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.ru/wix?keyword=pilote+manette+xbox+one+pc
- https://static.usrfiles.com/ugd/b8c837_e8373fc8801e47aeabcc6c0299ed8792.pdf
- https://static.usrfiles.com/ugd/b8c837_a182443aa60d49d9aceba2fbf9fcfffd.pdf
- https://static.usrfiles.com/ugd/b8c837_b89d1339c7be4540bef989657ddeba12.pdf
- https://static.usrfiles.com/ugd/b8c837_b78055f4d46e43aabdc759bd590ecc76.pdf
- https://static.usrfiles.com/ugd/b8c837_b20c93d4ea154df0a77c5ec43467059e.pdf
- https://static.usrfiles.com/ugd/b8c837_31eafa4a4833453b89353e055376cbda.pdf
- https://static.usrfiles.com/ugd/b8c837_3c8b5291c90d4cd3ae4ba29955c5d416.pdf
- https://static.usrfiles.com/ugd/b8c837_f3688d69465f4086acd3acd9e7f4a155.pdf
- https://static.usrfiles.com/ugd/b8c837_604205606b5744b7bbbff45f4fcc0137.pdf
- https://static.usrfiles.com/ugd/b8c837_fb83d719e33b44a686e30bb87ddaa843.pdf
- https://static.usrfiles.com/ugd/b8c837_cc71f22b4e5b4f298e5c14a51542fe7a.pdf
- https://static.usrfiles.com/ugd/b8c837_ac3a5eb38d6e415b821e0b443141cc46.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_off000045bd.bin` `0a1b8afbd49e58c3a591f135d26a12ae7e8c33249ca8ada1da93691f4980017b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x45BD	5012 bytes
`font_01_sfnt_off000056b1.bin` `16e8a7fb3bf7ebd60e1f5b0d0dc2cad784d6730c82eae234544d49dc368c0d18`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x56B1	9572 bytes

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