PDF malware analysis — malicious · ccaa6079d8fbb905

MALICIOUS

PDF

35.4 KB Created: 2020-09-02 23:11:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: cdbdea8f330d46e97cb24b9e0caf31f9 SHA-1: ef6de0f56a0ef2bd44780bb05f797fcd61055935 SHA-256: ccaa6079d8fbb9051e3f207504be7a0a742a370d66c69f7177d2cf937aa8e6ec

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector infrastructure, specifically 'ttraff.club', which is likely used to funnel users to phishing or scam pages. The document body, though partially corrupted, contains text related to 'hazard identification template nz' and the malicious URL, suggesting a lure. The presence of numerous other PDF links, many pointing to 'static.usrfiles.com', indicates a link farm strategy, potentially for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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.club/wix?keyword=hazard+identification+template+nz
- https://static.usrfiles.com/ugd/fe83c3_97b4713c3311457e81b15de90c10f35a.pdf
- https://static.usrfiles.com/ugd/b8c837_e2685bb0124642d180590ce27b53133b.pdf
- https://static.usrfiles.com/ugd/fbccce_03ddd08967794d89983e9c97912add31.pdf
- https://static.usrfiles.com/ugd/3ceeb9_0174118587594339993952f5bfff802e.pdf
- https://cdn.shopify.com/s/files/1/0433/5199/8623/files/tarkov_flipping_monitor.pdf
- https://static.usrfiles.com/ugd/409ca8_da37c76a30224d99a038940600b84979.pdf
- https://static.usrfiles.com/ugd/3aca14_c9de90be9f34453d8b1ba8c149547f5f.pdf
- https://static.usrfiles.com/ugd/b8c837_060138f2871a49a7bc2d626374364a97.pdf
- https://static.usrfiles.com/ugd/4826f5_243245939d734c6d961bcf58b6835126.pdf
- https://cdn.shopify.com/s/files/1/0438/4768/0162/files/norono.pdf
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/33297694163.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_off00004e58.bin` `333d3a90dba7b4966102fc13749fcca4ea33125ce1010bd6b289dfc8df2a36b1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4E58	5132 bytes
`font_01_sfnt_off00005fc1.bin` `6e30d8aedd1f6157d1fc9f0872d80352756d8a4bcdaf75d86ee7f7f6a5961c0c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FC1	9800 bytes

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