PDF malware analysis — malicious · df249df9d44f3f36

MALICIOUS

PDF

38.0 KB Created: 2020-07-18 02:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3e21891dbd4e78545b69064977bf86f1 SHA-1: 51910b98caeed290d68a3497e35f10e17d310c4b SHA-256: df249df9d44f3f3608a39a8a43a6929d748e35d1cd47aa891e6d98a7880e1caa

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, which is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains text suggesting it is a manual for 'Rdworks v8', likely a lure to encourage clicks on the embedded malicious URL. The file also contains a large number of embedded links, many pointing to WordPress sites, which is characteristic of SEO link farm techniques used to obscure malicious destinations.

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.com/wb?keyword=rdworks%20v8%20manual
- http://files.monarchgard.com/uploads/1/3/2/8/132814942/4318787.pdf
- http://files.csnobcs.org/uploads/1/3/1/4/131452806/c9c3257b.pdf
- http://files.eileenenwrighthodgetts.com/uploads/1/3/1/8/131857476/vefosojexuj.pdf
- https://nebosevali.fi
- https://lakezusegaza.files.wordpress.com/2020/07/musavij.pdf
- https://keligorages.files.wordpress.com/2020/07/70891159602.pdf
- https://gijoponalip.files.wordpress.com/2020/06/30989002467.pdf
- https://lezuvovefoga.files.wordpress.com/2020/06/40139907333.pdf
- https://fububoxoludi.files.wordpress.com/2020/06/57635497726.pdf
- https://morixumudiba.files.wordpress.com/2020/06/10201362900.pdf
- https://nebosevali.files.wordpress.com/2020/07/joneletukafij.pdf
- https://nifefuv.files.wordpress.com/2020/07/49889369361.pdf
- https://xuridugeduna.files.wordpress.com/2020/07/vojam.pdf
- https://sokoxoxuze49931159.files.wordpress.com/2020/07/9348549723.pdf
- https://cdn.shopify.com/s/files/1/0432/1076/8546/files/vamuvupefu.pdf
- https://cdn.shopify.com/s/files/1/0435/0178/1156/files/54383715566.pdf
- https://cdn.shopify.com/s/files/1/0429/3630/3782/files/75880660380.pdf
- https://cdn.shopify.com/s/files/1/0437/1097/2056/files/kitekutenabuparad.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdf
- https://cdn.shopify.com/s/files/1/0432/2390/8520/files/digadetij.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofusibosaduxigagixuvoma.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_off000059a4.bin` `04eb325cd7b214dae55f0b5b9885acb70ef01045e9b72020d65c9974cddd2976`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x59A4	5024 bytes
`font_01_sfnt_off00006aa0.bin` `07df591c986b260676badd40d3cfd453b9505e520063540917715fd6d1ad6181`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AA0	9428 bytes

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