PDF malware analysis — malicious · d47b4bfd0d09f185

MALICIOUS

PDF

45.1 KB Created: 2020-08-22 01:18:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 987371809bc5ea6b712cd0ce489fd6ef SHA-1: 22b8012c1b52ccec0980a0b318f0180f8bc4f03a SHA-256: d47b4bfd0d09f185a9e794c51bc4e396902fc4f370be5b98573f3566f0612964

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, indicative of an SEO farm or a link-based redirection scheme. The primary malicious URL identified is ttraff.ru, which is known to host redirectors. While no scripts were extracted, the document body contains numerous URLs, suggesting a content-driven lure or redirection mechanism.

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=bolbitis+heteroclita+difformis+care
- http://xidalas.kristoferthornton.com/uploads/1/3/1/3/131379552/naxuwerosuda_rirawad.pdf
- http://files.bethbongar.com/uploads/1/3/1/4/131407292/xolabazuxi.pdf
- https://cdn.shopify.com/s/files/1/0437/0500/8280/files/92570246298.pdf
- https://cdn.shopify.com/s/files/1/0430/3365/7495/files/baofeng_uv-_82_programming.pdf
- https://cdn.shopify.com/s/files/1/0437/1261/0472/files/nanirup.pdf
- https://cdn.shopify.com/s/files/1/0435/9772/5864/files/businisovaxiwotufasexi.pdf
- https://cdn.shopify.com/s/files/1/0429/7791/9129/files/13946435275.pdf
- https://cdn.shopify.com/s/files/1/0430/7140/6234/files/gebizomab.pdf
- https://cdn.shopify.com/s/files/1/0434/3077/2902/files/selarovofevojepaw.pdf
- https://cdn.shopify.com/s/files/1/0429/9276/3039/files/kuropobamivuk.pdf
- https://cdn.shopify.com/s/files/1/0436/1525/6738/files/silirefeja.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdf
- https://cdn.shopify.com/s/files/1/0435/8311/1336/files/dakavujolabeni.pdf
- https://cdn.shopify.com/s/files/1/0428/3406/7615/files/edible_cutlery.pdf
- https://cdn.shopify.com/s/files/1/0434/4152/0790/files/fojenukawutazal.pdf
- https://cdn.shopify.com/s/files/1/0435/5863/3631/files/28104795938.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_off0000649e.bin` `a68efd8d97048740350cb85b3227205a1f6866f538845f26c541374c9146becc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x649E	5132 bytes
`font_01_sfnt_off00007604.bin` `387c69653c8105a175dfebb27f8f66f306c4362a09e8b12ff4cf54ad8c605612`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7604	10508 bytes
`font_02_sfnt_off00009988.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9988	4324 bytes

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