PDF malware analysis — malicious · 7f920cc62b1b0ff8

MALICIOUS

PDF

40.1 KB Created: 2020-08-29 09:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 52df56d3204f26748bf29cfc69a14eb8 SHA-1: 24d68f6ae9e4e4f1d88dff055cdf94c581eb8a90 SHA-256: 7f920cc62b1b0ff8d3f5881b2c54efb0661853647a5f8f25763e7114453efa5a

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF contains a link to a known malicious redirector, suggesting an attempt to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'dragon heist maps download' and a URL that appears to be part of a link farm. The presence of numerous external links, many pointing to benign PDFs, indicates a potential SEO poisoning or link farm tactic to drive traffic to malicious infrastructure.

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.cc/wix?keyword=dragon+heist+maps+download
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_bd03473404844518865e89524af5adb7.pdf
- https://static.usrfiles.com/ugd/b8c837_1f5fc834818448e3a342eb3c46633c18.pdf
- https://static.usrfiles.com/ugd/b8c837_1786e8a9697c40ec83e66de10965cb1e.pdf
- https://static.usrfiles.com/ugd/b8c837_984bf8d94af944ab80c531d3613b8fc5.pdf
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/meant_to_be_mp4_bebe_rexha.pdf
- https://cdn.shopify.com/s/files/1/0432/2276/1635/files/96333422847.pdf
- https://cdn.shopify.com/s/files/1/0432/5061/4429/files/42526316126.pdf
- https://cdn.shopify.com/s/files/1/0429/4865/7311/files/nekanapebepujo.pdf
- https://cdn.shopify.com/s/files/1/0433/6009/2309/files/vukawonisinavevademuze.pdf
- https://static.usrfiles.com/ugd/b8c837_66628c131d9b48abb03ec98d06b2095a.pdf
- https://static.usrfiles.com/ugd/b8c837_267e9145901648b7ae947001f0a05404.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005d25.bin` `9a0c8ef96cc9720e0c126b9595cb62db9308024332530d0ad48d36ba2506eacd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D25	5464 bytes
`font_01_sfnt_off00006f9f.bin` `fd53093e40210a557703ce5c8da06af62c5ef908c41abd835669ee2bcf79c3fe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F9F	10160 bytes

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