PDF malware analysis — malicious · 4bb7ee42d891c0ac

MALICIOUS

PDF

53.6 KB Created: 2020-08-03 10:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 57ca23c7726ef212a5e405481ff391e0 SHA-1: 3dcc29e9f8b7678aef6e156d0011169c0a22f000 SHA-256: 4bb7ee42d891c0ac61f347b9ea4c61931439ed9ebf589fad2258a1ee922140d8

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, embedding numerous URLs. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=afro+cirkus+song'. The document body also contains this URL and other embedded links, suggesting a primary goal of directing users to potentially harmful external sites. The presence of many Shopify-hosted PDF links, while individually benign, contributes to the overall deceptive nature of the document.

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=afro+cirkus+song
- http://files.munaturals.com/uploads/1/3/1/4/131437676/jolase.pdf
- http://files.funnyfacespz.co.uk/uploads/1/3/1/0/131070452/6050995.pdf
- http://files.mrshalford.com/uploads/1/3/2/8/132814680/lezuguje.pdf
- https://cdn.shopify.com/s/files/1/0432/2243/3953/files/zixukopudinasulud.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/pemadunotusixaselo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56802730071.pdf
- https://cdn.shopify.com/s/files/1/0433/4141/4552/files/megomububoramiwuxi.pdf
- https://cdn.shopify.com/s/files/1/0431/9117/3278/files/nadekul.pdf
- https://cdn.shopify.com/s/files/1/0429/9869/4049/files/vavireseberidobipusum.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdf
- https://cdn.shopify.com/s/files/1/0432/1175/1579/files/zokedufolifujovorafodom.pdf
- https://cdn.shopify.com/s/files/1/0435/4814/7867/files/gopimuz.pdf
- https://cdn.shopify.com/s/files/1/0432/6208/3232/files/98546779338.pdf
- https://cdn.shopify.com/s/files/1/0431/3477/9553/files/9840742677.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
`stream_006_off0000a151.bin` `405a3cf200a06cc0d4e16c3c46acfcd15989a1d1094906007f813ebf79348af5`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xA151	22780 bytes
`font_00_sfnt_off00005a3c.bin` `19fe6d3511270ee3ff4fbce704f5f4a9fb9182a4344e37e40a38d55828b07e20`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A3C	3312 bytes
`font_01_sfnt_off0000661d.bin` `98310f76079bc3da329224d7d5ebe7139ce2f0a7c9403311644328d24c3055ee`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x661D	4860 bytes
`font_02_sfnt_off000076cb.bin` `b4c21f72cf7b300278ae765b4ed35240f4c6e4eb2a7d3d880d8efa0f2703396f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76CB	13348 bytes

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