PDF malware analysis — malicious · a02c8f0d740ba1f4

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 14:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bacc522d2256337ed2b4b49ecb69ac16 SHA-1: 6725e8f57030a616436f7fe2e662ea65a1651112 SHA-256: a02c8f0d740ba1f4e4c1b2e7346092e5ce7ee33912121d745226fbab2c4a0d64

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded links, many pointing to Shopify domains but also including a critical link to a known malicious redirector at 'ttraff.com'. This indicates a likely SEO-based link farm or phishing lure designed to redirect users to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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=patron+burda+pdf+gratuit
- http://files.chickskicksboots.com/uploads/1/3/1/6/131606431/jonefororukikotebofo.pdf
- http://vaxofi.thebiocompatibledentist.com/uploads/1/3/0/9/130969060/6760477.pdf
- http://files.footballinmyblood.com/uploads/1/3/2/6/132695454/zakirexubo.pdf
- http://nuduj.designmindcreates.com/uploads/1/3/1/4/131483068/7623282.pdf
- https://cdn.shopify.com/s/files/1/0436/1306/1277/files/robavonereti.pdf
- https://cdn.shopify.com/s/files/1/0429/8034/3967/files/bsc_maths_syllabus_2020.pdf
- https://cdn.shopify.com/s/files/1/0432/9455/6324/files/98754847267.pdf
- https://cdn.shopify.com/s/files/1/0440/6041/0006/files/74212265135.pdf
- https://cdn.shopify.com/s/files/1/0430/4856/6941/files/capitalismo_salvaje.pdf
- https://cdn.shopify.com/s/files/1/0432/3459/0888/files/99383921385.pdf
- https://cdn.shopify.com/s/files/1/0435/0545/1174/files/12460679771.pdf
- https://cdn.shopify.com/s/files/1/0433/9823/4270/files/tomor.pdf
- https://cdn.shopify.com/s/files/1/0432/7689/4372/files/71762202141.pdf
- https://cdn.shopify.com/s/files/1/0431/4526/5312/files/numuvopatilegabavo.pdf
- https://cdn.shopify.com/s/files/1/0435/8841/9741/files/23070088454.pdf
- https://cdn.shopify.com/s/files/1/0432/7378/1416/files/fepokelisugokiwepav.pdf
- https://cdn.shopify.com/s/files/1/0428/5064/8223/files/newopigawu.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_off00005fac.bin` `9afcc23280480786e93937ceacce3bd73a03505218a24eaaf86d7763d99835ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FAC	5140 bytes
`font_01_sfnt_off00007130.bin` `1a2bbdb9fdbf70442859276cef74303cdc030c9e964347939997df374dfec087`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7130	12376 bytes

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