PDF malware analysis — malicious · dccf059f787c0789

MALICIOUS

PDF

43.5 KB Created: 2020-07-29 20:09:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b2fb7f6f806992d802bd6447fd6e0dab SHA-1: 993cedd4e1fc14ddf1859fcb57f59396068fa9cf SHA-256: dccf059f787c07894ab1f07505a50beae706092eabe78ad9a6a31dc828e558da

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links to external websites, a common tactic for SEO spam and redirecting users to malicious content. One of the primary links, 'https://ttraff.com/pify?keyword=grade+10+math+questions+and+answers+pdf+ontario', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to be related to educational content, likely a lure. The presence of multiple Shopify links, while some are benign, contributes to the overall SEO spam nature of the document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=grade+10+math+questions+and+answers+pdf+ontario
- http://files.fancyfreeblog.com/uploads/1/3/1/4/131453897/beminodisulof_xopodovomeliv_vojifobuma.pdf
- http://files.malaykaneith.com/uploads/1/3/2/6/132682134/9382595.pdf
- http://files.iac-school.com/uploads/1/3/1/3/131397971/47ec8324.pdf
- http://files.westmorelandhillsgc.org/uploads/1/3/2/6/132695405/3a99a7.pdf
- https://cdn.shopify.com/s/files/1/0430/8297/3346/files/23444758311.pdf
- https://cdn.shopify.com/s/files/1/0431/6564/7012/files/84520790137.pdf
- https://cdn.shopify.com/s/files/1/0428/3292/0739/files/lanop.pdf
- https://cdn.shopify.com/s/files/1/0433/0792/5664/files/tonule.pdf
- https://cdn.shopify.com/s/files/1/0432/9078/8000/files/gosezibiwinafivig.pdf
- https://cdn.shopify.com/s/files/1/0429/7791/9129/files/46860026440.pdf
- https://cdn.shopify.com/s/files/1/0428/9508/1625/files/rutovi.pdf
- https://cdn.shopify.com/s/files/1/0430/8582/4164/files/wosigoduk.pdf
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/51197712334.pdf
- https://cdn.shopify.com/s/files/1/0427/6640/1692/files/19951193820.pdf
- https://cdn.shopify.com/s/files/1/0432/4923/8184/files/56561203282.pdf
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/35482780165.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/
- https://cdn.shopify.com/s/files/1/0433/0792/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006ac1.bin` `4ae1b768df2ce5d726a8772ed7190fe63db929be5f1c0af7e9ea7311075fafa0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AC1	5572 bytes
`font_01_sfnt_off00007da5.bin` `12965a08667b11944f5a3d8b0c3f07cb3d8e03b1290fb0ab86949dddb72123cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DA5	10264 bytes

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