PDF malware analysis — malicious · ec7d05e9b865eeb9

MALICIOUS

PDF

44.9 KB Created: 2020-08-13 23:33:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a4154d3237cd3866780002a0983dbf1b SHA-1: 6c01277d9288727de2f51a1e35f1d75851f2cfdf SHA-256: ec7d05e9b865eeb9d1e3ed221a13cfc7aabd6df66e93c79d839e5ee4f31ae71c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a redirector link, indicating a phishing or malicious redirection attempt. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=new+album+songs+tamil++video', which is also flagged as a malicious redirector. The presence of numerous PDF links suggests an attempt to manipulate search engine results or distribute further malicious content.

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=new+album+songs+tamil++video
- http://nigitenak.dcifulfillment.com/uploads/1/3/0/9/130969176/luguditakado.pdf
- http://files.costastudentrentals.com/uploads/1/3/0/8/130874598/8714691.pdf
- http://vujin.kathyskreationsballoonart.com/uploads/1/3/0/7/130739415/4387539.pdf
- https://cdn.shopify.com/s/files/1/0430/7025/9357/files/javanigumusabin.pdf
- https://cdn.shopify.com/s/files/1/0430/7451/9194/files/xinimunawovuxumopo.pdf
- https://cdn.shopify.com/s/files/1/0427/9628/6111/files/zogigajuvolir.pdf
- https://cdn.shopify.com/s/files/1/0435/6331/9445/files/biology_class_12_cbse_notes.pdf
- https://cdn.shopify.com/s/files/1/0434/0210/0899/files/15676731848.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/83533016153.pdf
- https://cdn.shopify.com/s/files/1/0436/4324/0606/files/40599192166.pdf
- https://cdn.shopify.com/s/files/1/0432/6191/9390/files/51227828425.pdf
- https://cdn.shopify.com/s/files/1/0430/4899/2919/files/kujakesara.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36920421444.pdf
- https://cdn.shopify.com/s/files/1/0431/4162/8053/files/91302228445.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000509b.bin` `c5c3ec3de109f1b009f51c7867d98d1fd7d6e0a0965827ce46827622d6cf95f8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x509B	5308 bytes
`font_01_sfnt_off000062ab.bin` `5a291b7ddca4715798e5002bc0dd57d41ed431acd70ffcb57e5dc517535df6fb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62AB	2732 bytes
`font_02_sfnt_off00006d23.bin` `c2684e2008da5c75825135c76e00e4d37b409acce8faa9904c9da851ccf62259`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D23	10052 bytes
`font_03_sfnt_off00008f88.bin` `6a519f54f5516a02950eed31c222a33217e1daf964577f37e3b402c146ae77cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F88	16488 bytes

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