PDF malware analysis — malicious · d11f432828859dd4

MALICIOUS

PDF

45.3 KB Created: 2020-07-27 05:44:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9c1d1bb0624723da42f358eb0335a009 SHA-1: 274b872918ee82c8686a5009009ed5c331348b5b SHA-256: d11f432828859dd4aa424a0ff08aaf9687af845630158745495a68e85b9af158

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.cc. This indicates a phishing or redirection attempt. Additionally, the PDF is flagged as a link farm, suggesting it's designed to host numerous external links, likely for SEO manipulation or to distribute malicious content. 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=combine%20multiple%20pictures%20into%20one%20pdf%20mac
- http://files.harborneconstruction.com/uploads/1/3/1/4/131438829/d4f81c089.pdf
- http://files.5acrefarmsar.com/uploads/1/3/1/8/131857152/8842722.pdf
- http://files.visionworksmultimedia.com/uploads/1/3/0/8/130813458/pujote.pdf
- https://cdn.shopify.com/s/files/1/0433/5491/4981/files/farotelixaxusadamaliju.pdf
- https://cdn.shopify.com/s/files/1/0430/9437/6599/files/81344133919.pdf
- https://cdn.shopify.com/s/files/1/0429/6628/6490/files/75810743997.pdf
- https://cdn.shopify.com/s/files/1/0435/7645/9427/files/1150890654.pdf
- https://cdn.shopify.com/s/files/1/0437/2417/7576/files/wotaketobutaratiwigazuxes.pdf
- https://cdn.shopify.com/s/files/1/0436/3524/5214/files/winalenobevof.pdf
- https://cdn.shopify.com/s/files/1/0433/1683/8558/files/73296689984.pdf
- https://cdn.shopify.com/s/files/1/0428/3439/5295/files/15423972326.pdf
- https://cdn.shopify.com/s/files/1/0434/8782/1984/files/jotikoze.pdf
- https://cdn.shopify.com/s/files/1/0434/7209/3336/files/diwivavuzo.pdf
- https://cdn.shopify.com/s/files/1/0434/1855/0429/files/fomesukog.pdf
- https://cdn.shopify.com/s/files/1/0430/6052/7253/files/dibijevumewezomelu.pdf
- https://cdn.shopify.com/s/files/1/0428/7135/7596/files/28614943575.pdf
- https://cdn.shopify.com/s/files/1/0435/1829/6232/files/mebas.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/1/0435/7645/9427/files/11508906

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007369.bin` `7f8708a225fec9b0e86bf7e7fe3b339bee02c47120d14b89589d650ab6371a52`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7369	5344 bytes
`font_01_sfnt_off00008574.bin` `9aac21fe20dffa499eecb4271a684ee6729879a1c590db136ac5913c35213f57`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8574	10124 bytes

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