PDF malware analysis — malicious · 1a9e513c7ff4667c

MALICIOUS

PDF

56.8 KB Created: 2020-08-02 20:18:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: baf76f41d1a4e2b7078343ad067608d3 SHA-1: ebc592ddae86679cd13247b46a8a7e1f80c928dc SHA-256: 1a9e513c7ff4667c275ac6fc4d29ccfce3d39f6387a6b8da8ff4ae02b7016ae5

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be luring the user to a malicious site via the embedded link.

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=animation+in+pdf
- http://files.darknessisfalling.com/uploads/1/3/2/6/132681690/7823383.pdf
- http://files.ghghuk.com/uploads/1/3/0/7/130739509/237f0c.pdf
- http://files.3ddd.me/uploads/1/3/1/4/131454791/5599763.pdf
- http://files.professorcarson.com/uploads/1/3/2/6/132695829/5005946.pdf
- http://files.457-glas.com/uploads/1/3/0/8/130815095/ddfca3d.pdf
- https://cdn.shopify.com/s/files/1/0428/4953/4111/files/x_to_y_pathfinder.pdf
- https://cdn.shopify.com/s/files/1/0431/6807/1836/files/39397340854.pdf
- https://cdn.shopify.com/s/files/1/0436/3531/0752/files/bowepotoge.pdf
- https://cdn.shopify.com/s/files/1/0431/8609/4229/files/lumusow.pdf
- https://cdn.shopify.com/s/files/1/0428/6880/1695/files/dumorateroxovetujilijutus.pdf
- https://cdn.shopify.com/s/files/1/0428/8741/3923/files/95838388219.pdf
- https://cdn.shopify.com/s/files/1/0431/1249/7312/files/30165488153.pdf
- https://cdn.shopify.com/s/files/1/0434/4945/0661/files/78282408560.pdf
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/94901275275.pdf
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/jexikakipigezow.pdf
- https://cdn.shopify.com/s/files/1/0434/3506/5505/files/45584293379.pdf
- https://cdn.shopify.com/s/files/1/0434/7042/2180/files/mobosut.pdf
- https://cdn.shopify.com/s/files/1/0429/9436/8663/files/95681772459.pdf
- https://cdn.shopify.com/s/files/1/0430/9896/4117/files/48993539191.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_off0000a35f.bin` `e48576c10f4a491aa29bc8e5c0b1d93502d61552b48aa317a0ecbb4621512b9a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA35F	4868 bytes
`font_01_sfnt_off0000b3e0.bin` `ffefd795744e8412d01235639e06fcb82e15dddf339c15b95a218efe1b7f5894`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB3E0	10120 bytes

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