PDF malware analysis — malicious · d7d6a212dab0f3d5

MALICIOUS

PDF

72.3 KB Created: 2020-08-06 21:38:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9ed9f2cde1dec080898db2519064e119 SHA-1: 7ac0747145d5c5ce0796ec675d0dc2ae07f86a27 SHA-256: d7d6a212dab0f3d5650610185f81267bcf2623cfd75669880d02c071aea56f78

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a translation PDF. The presence of multiple external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. The primary malicious URL is https://ttraff.ru/pify?keyword=rig+veda+malayalam+translation+pdf, which is flagged as a malicious redirector.

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=rig+veda+malayalam+translation+pdf
- http://files.westendcroquetclub.com/uploads/1/3/0/7/130775528/2bee49950a6cc6.pdf
- http://files.rekindledorganizing.com/uploads/1/3/2/6/132682829/a426dac9958.pdf
- http://files.aodex.net/uploads/1/3/1/3/131384070/tupuw.pdf
- https://cdn.shopify.com/s/files/1/0432/2702/1480/files/65559203865.pdf
- https://cdn.shopify.com/s/files/1/0433/1008/8357/files/muvovuxineromilavipopibab.pdf
- https://cdn.shopify.com/s/files/1/0431/8917/4432/files/55338351389.pdf
- https://cdn.shopify.com/s/files/1/0429/5720/9753/files/gugofiref.pdf
- https://cdn.shopify.com/s/files/1/0437/9800/3874/files/51046649100.pdf
- https://cdn.shopify.com/s/files/1/0431/4942/6839/files/94266789533.pdf
- https://cdn.shopify.com/s/files/1/0427/6820/3942/files/16758749760.pdf
- https://cdn.shopify.com/s/files/1/0428/8456/3110/files/logan_s_run_tv_series.pdf
- https://cdn.shopify.com/s/files/1/0432/4048/9122/files/2832636959.pdf
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/23175962847.pdf
- https://cdn.shopify.com/s/files/1/0430/5282/6773/files/pofifidivexamabasidafi.pdf
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/35509020817.pdf
- https://cdn.shopify.com/s/files/1/0431/6640/0663/files/20628949555.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_off0000c7bb.bin` `67c48f1448d7c6e1cc204ce20377506b1c1e435c57b6982b52dcf17f8565c4e0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC7BB	5528 bytes
`font_01_sfnt_off0000da8a.bin` `8b23a49fe91c3fd8e108c923c62faac746d9f4160ef5379176fdfca820d34d2f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA8A	14400 bytes
`font_02_sfnt_off000105e0.bin` `5898b0c31afb89f1114b87ceb7ce86bfd902bc5e0820944d0175c83d0c38d4c3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x105E0	3584 bytes

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