PDF malware analysis — malicious · 4fae632a0db322f0

MALICIOUS

PDF

45.7 KB Created: 2020-08-24 17:28:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 575fa401e51ec32425202dddfd4f9c9d SHA-1: 2ea4562921a28688f67053ea45bf3463c6712f18 SHA-256: 4fae632a0db322f00c56a8bdb21e69298aeb2ec6b85b43cdc8eed18d3c117f90

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=plantillas+portadas+para+word+formales'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for phishing or to download further malware.

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=plantillas+portadas+para+word+formales
- http://files.weatherpaige.com/uploads/1/3/0/8/130874204/1807820.pdf
- http://files.3shirescoaching.org/uploads/1/3/0/8/130873893/f841f6530.pdf
- http://files.northmiresouces.org/uploads/1/3/0/9/130969966/d4e8a0157.pdf
- http://files.efjja.com/uploads/1/3/1/4/131408024/kasoras.pdf
- https://cdn.shopify.com/s/files/1/0437/1320/0278/files/6077325839.pdf
- https://cdn.shopify.com/s/files/1/0433/7090/5750/files/81611559691.pdf
- https://cdn.shopify.com/s/files/1/0434/1720/6946/files/dusegitiragovuxuninax.pdf
- https://cdn.shopify.com/s/files/1/0433/1310/2998/files/8821639165.pdf
- https://cdn.shopify.com/s/files/1/0434/9709/5333/files/pelitokuxowulimami.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93880590480.pdf
- https://cdn.shopify.com/s/files/1/0432/7066/8453/files/53113181566.pdf
- https://cdn.shopify.com/s/files/1/0432/5595/5613/files/gefimugo.pdf
- https://cdn.shopify.com/s/files/1/0430/1645/4305/files/25439638818.pdf
- https://cdn.shopify.com/s/files/1/0431/6259/9585/files/fodejakezono.pdf
- https://cdn.shopify.com/s/files/1/0435/2802/8312/files/exercices_pour_apprendre_le_franais.pdf
- https://cdn.shopify.com/s/files/1/0429/0094/7103/files/bipivunidigijevetomoxid.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7407/files/safidifegufijokageser.pdf
- https://cdn.shopify.com/s/files/1/0435/6662/9032/files/41505073418.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_off0000670b.bin` `1ef8a187391c7690865b8e87e5ac9a23ba77c07b5392daf1bed3c221a00dac2f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x670B	5280 bytes
`font_01_sfnt_off000078f2.bin` `6593a336fd77c789bf0c07005b5d0413c51f95183ad5f286e1d2d9624a215439`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x78F2	15404 bytes

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