PDF malware analysis — malicious · fc185a1bbdd81554

MALICIOUS

PDF

38.6 KB Created: 2020-08-30 13:30:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5c28bc531810f37f17d72e4a01a7e8ed SHA-1: ae3e16d89908f7f3b8730745e7371b455ebf17e6 SHA-256: fc185a1bbdd815542b0f7684d36363dc1e960801b0f32f98882b4d2e2cd34d70

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text referencing a "Millennium 950 keypad manual" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links also indicates a link farm, likely for SEO poisoning or to obscure the final destination.

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/wix?keyword=millennium+950+keypad+manual
- https://static.usrfiles.com/ugd/a298ce_b00973d0fff44882a1f911290c1de352.pdf
- https://static.usrfiles.com/ugd/b8c837_b6983e9bcd0c43b4a205b45579147349.pdf
- https://static.usrfiles.com/ugd/a44510_3ec5d20e74794789bae2221df077e782.pdf
- https://static.usrfiles.com/ugd/4826f5_d5d6e77edaed42868b6f5c9064d63775.pdf
- https://static.usrfiles.com/ugd/c7ef1a_71a3a250ea2c4f59b40246f736a3795f.pdf
- https://static.usrfiles.com/ugd/05900a_af6da79b612942f7b531b8e07985d262.pdf
- https://static.usrfiles.com/ugd/f46427_0f352c65145342edb23f144b5668d88e.pdf
- https://static.usrfiles.com/ugd/89c6ad_3409bcfab63140488f40c58f96321146.pdf
- https://static.usrfiles.com/ugd/ea9bdf_eb8c9abd7176419c823a56e18ff777d6.pdf
- https://static.usrfiles.com/ugd/b8c837_88e5ae1a84cb4ed89e333e06beae123e.pdf
- https://static.usrfiles.com/ugd/9904c2_3b6bdecd413542089f24e3502c3a2df1.pdf
- https://static.usrfiles.com/ugd/b8c837_503414e442aa49bbb593ca11311bd4c1.pdf
- https://static.usrfiles.com/ugd/cc03df_391214586dce4294aa86cdadc0965514.pdf
- https://static.usrfiles.com/ugd/b8c837_9d6ac805ccef4705aeed88c6bf67e36f.pdf
- https://cdn.shopify.com/s/files/1/0438/3227/9200/files/zidasokura.pdf
- https://cdn.shopify.com/s/files/1/0431/0571/4338/files/52942273954.pdf
- https://cdn.shopify.com/s/files/1/0437/2814/2501/files/37540149435.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_off000058a7.bin` `2adc1117431e2485b3c2a1412ecf1552510090d46e259ec89dd5e9fa0a6fb5bc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58A7	5424 bytes
`font_01_sfnt_off00006b1e.bin` `59683183f0ad382381eb00d64f7342677fa94c5fa728b9807e317d68775f06af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B1E	10112 bytes

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