PDF malware analysis — malicious · d2c5355790478f44

MALICIOUS

PDF

44.9 KB Created: 2020-07-13 00:40:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: acc31260fa5ba5ee60519d65d44a36cb SHA-1: 554f83fa1421a6856a9a60e8c9314fab3467e7f5 SHA-256: d2c5355790478f44505296c263d8e3f32db93d34816a07810dc22c3993eac790

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded links that redirect to malicious infrastructure, specifically a URL designed to appear as a search result for "Legrand circuit breaker catalogue pdf". The heuristic firings indicate a malicious redirector and a link farm, suggesting the primary goal is to drive traffic to potentially harmful sites. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/wb?keyword=legrand%20circuit%20breaker%20catalogue%20pdf
- http://files.treesforhope.net/uploads/1/3/1/1/131163777/3163776.pdf
- http://files.jamicurtis.com/uploads/1/3/1/3/131398141/jifineworebufeko.pdf
- http://files.attorneydianebaker.com/uploads/1/3/0/9/130970014/3599882.pdf
- http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.pdf
- https://valorenulemu.files
- https://gefoguvokuru.files.wordpress.com/2020/06/wojilanevasuson.pdf
- https://zejamiwi.files.wordpress.com/2020/06/97185453586.pdf
- https://balebodi.files.wordpress.com/2020/07/5300369041.pdf
- https://rebepotare.files.wordpress.com/2020/07/temukamatasige.pdf
- https://valorenulemu.files.wordpress.com/2020/07/76615348752.pdf
- https://dabodurubavo.files.wordpress.com/2020/06/fikedigadivipi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70913092576.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/womonevixaxijebuvi.pdf
- https://cdn.shopify.com/s/files/1/0429/8981/3909/files/vokedozepojagoxeko.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopesutokuvikoku.pdf
- https://cdn.shopify.com/s/files/1/0427/6230/5702/files/16064292371.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5903401900.pdf
- https://cdn.shopify.com/s/files/1/0427/9812/1119/files/seworaletig.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopiforosolakalaxelavur.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_off0000726d.bin` `4c682346d66ca23be4c3f752b1a6c72c66dc8255043bf2c954ea84c2ab227fe7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x726D	5172 bytes
`font_01_sfnt_off0000840d.bin` `d2a6c2194b2dd2a620b16e2ed5a168983ca59b552999974122096462f99f6417`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x840D	10020 bytes

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