PDF malware analysis — malicious · 9e20fa046e718753

MALICIOUS

PDF

122.0 KB Created: 2020-08-20 22:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 058aba734c27276bc33903f394ad3ade SHA-1: 716e7f13f62a24b682f2046ad60dc613e2963888 SHA-256: 9e20fa046e7187536943457be4fe775603a9ff4989f29a8cd9d317bf104bd64e

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 'https://ttraff.ru/pify?keyword=libro+actos+de+fe+pdf+gratis'. This URL is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains references to the same URL, reinforcing its malicious intent. The presence of numerous other benign Shopify links suggests an attempt to mask the malicious URL within a larger link farm.

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.ru/pify?keyword=libro+actos+de+fe+pdf+gratis
- http://kevitap.susansimons.com/uploads/1/3/0/9/130969077/ganejizivewesi.pdf
- http://nipunu.insideemilyshead.com/uploads/1/3/1/0/131070197/8474853.pdf
- http://gipuwup.spazhealer.com/uploads/1/3/1/4/131437308/dd869f35b722f.pdf
- https://cdn.shopify.com/s/files/1/0431/9376/1941/files/vutudefa.pdf
- https://cdn.shopify.com/s/files/1/0429/3135/5807/files/11630577923.pdf
- https://cdn.shopify.com/s/files/1/0431/7813/1611/files/vanixodipex.pdf
- https://cdn.shopify.com/s/files/1/0434/7287/9773/files/28484497858.pdf
- https://cdn.shopify.com/s/files/1/0431/8871/5682/files/rifijilas.pdf
- https://cdn.shopify.com/s/files/1/0440/2718/3269/files/finidaxiz.pdf
- https://cdn.shopify.com/s/files/1/0431/1865/7703/files/bezafekefomawonudurit.pdf
- https://cdn.shopify.com/s/files/1/0432/5149/9170/files/annuity_calculation_formula.pdf
- https://cdn.shopify.com/s/files/1/0430/0364/2007/files/mevapegub.pdf
- https://cdn.shopify.com/s/files/1/0432/2990/5058/files/8706881017.pdf
- https://cdn.shopify.com/s/files/1/0434/4899/1910/files/contoh_kerangka_acuan_amdal.pdf
- https://cdn.shopify.com/s/files/1/0439/8268/4318/files/15402508809.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00019382.bin` `1ae15609535423031fb3a0bc80f6b3db9ab7c1bba7a1f661dd7d37fe9b47d230`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x19382	5056 bytes
`font_01_sfnt_off0001a4b9.bin` `cd8225db9eef51640dd4eebdc6171f52218b17e32c24e0cf3844304f7b5ae411`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1A4B9	11720 bytes
`font_02_sfnt_off0001cade.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1CADE	4324 bytes

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