PDF malware analysis — malicious · 2b5f820f3ddaddae

MALICIOUS

PDF

32.6 KB Created: 2020-08-01 18:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e706a19029e26ca136e67b6e8f029043 SHA-1: 67d66cbd3dacf7bdebe430467264f7898a9ebc12 SHA-256: 2b5f820f3ddaddaea42a762b00842574425b04a1e0ecc34a1d22bfada15ca217

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, many pointing to Shopify domains, which is characteristic of SEO spam campaigns. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=homelite+sx-+135+manual+pdf'. The document body, though heavily obfuscated, contains text related to a 'Homelite sx-135 manual pdf', suggesting a lure to disguise the malicious links. The ML classifier strongly supports the malicious verdict.

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/pify?keyword=homelite+sx-+135+manual+pdf
- http://files.diannesk9connection.com/uploads/1/3/2/6/132682471/sesox.pdf
- http://files.cedarhillouray.org/uploads/1/3/2/8/132814071/4589043.pdf
- http://files.explorestanton.com/uploads/1/3/1/4/131453216/6741733.pdf
- https://cdn.shopify.com/s/files/1/0434/9270/4408/files/28537389830.pdf
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/38353930382.pdf
- https://cdn.shopify.com/s/files/1/0433/0035/6251/files/nibur.pdf
- https://cdn.shopify.com/s/files/1/0432/0781/9422/files/87005257291.pdf
- https://cdn.shopify.com/s/files/1/0434/2172/8918/files/kipawabel.pdf
- https://cdn.shopify.com/s/files/1/0430/6308/3162/files/91551085911.pdf
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/18695319351.pdf
- https://cdn.shopify.com/s/files/1/0434/6295/1077/files/29097402798.pdf
- https://cdn.shopify.com/s/files/1/0434/6649/0006/files/23706946139.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_off00004238.bin` `0a3ae1be164ca923772a80729fd811abf53a295b57645bd0692f0b20e844694a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4238	5492 bytes
`font_01_sfnt_off000054e9.bin` `9360eced29c23a8f4eb2f8ba62f0b8e9c37a9ef2f9fc2ff41c2ce91cc52d6231`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x54E9	9672 bytes

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