PDF malware analysis — malicious · 4cab62942afe0a3d

MALICIOUS

PDF

47.9 KB Created: 2020-08-30 13:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ba7f86c6188e67052954f6758014f579 SHA-1: b6edf4df5e7e1c0d50375feada2297ae7dc6a95c SHA-256: 4cab62942afe0a3d3d72f5b095c458630e5d32e700bc4b3106cf35c20e86b9c1

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=biggest+loser+meal+plan+delivery'. This URL is presented within the document body, disguised as a lure related to meal plans. The document also contains a large number of embedded links, many of which point to 'static.usrfiles.com', suggesting a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious.

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/wix?keyword=biggest+loser+meal+plan+delivery
- https://static.usrfiles.com/ugd/b8c837_9ff3a7138cc3429ea17e92826c9049c5.pdf
- https://static.usrfiles.com/ugd/b8c837_aa7348c0ba49440286388a7f8114c242.pdf
- https://static.usrfiles.com/ugd/b8c837_c4dda66298124c45b7c90b0a0761bc49.pdf
- https://static.usrfiles.com/ugd/2b3f46_facc9324a17b48a7a86aec373efa4ff6.pdf
- https://static.usrfiles.com/ugd/1be480_c4ceccd96ae44f86b16e505a7960071e.pdf
- https://static.usrfiles.com/ugd/b8c837_f453484c0fce4c15bf2363b5383b5521.pdf
- https://static.usrfiles.com/ugd/b8c837_113ebf78a3324752a355d55de411a222.pdf
- https://static.usrfiles.com/ugd/08fe48_46a1bdb8dbae4467be3c0836dcfabf74.pdf
- https://static.usrfiles.com/ugd/2f7815_ca87bb0528f042eb963bc5dacb172bf5.pdf
- https://static.usrfiles.com/ugd/b8c837_5b6ef798cb8945d88b24fc933ada41e6.pdf
- https://static.usrfiles.com/ugd/b8c837_16d63047691748e19d09bcab43da2467.pdf
- https://cdn.shopify.com/s/files/1/0431/4087/4408/files/migugowatubiwazegonixedow.pdf
- https://cdn.shopify.com/s/files/1/0433/9482/6405/files/random_real_address.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58585016777.pdf
- https://cdn.shopify.com/s/files/1/0434/5223/5938/files/97336581281.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_off00006d87.bin` `21ee742eeeef1372017a94b97ae1363a7026b94ab11c4f29de42246d907a2761`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D87	5280 bytes
`font_01_sfnt_off00007f5c.bin` `1249fa0d3da2b1f2b2fbcdb6cbe1f8d6da1cdecedd40db07fcd292fbed52b418`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F5C	10900 bytes
`font_02_sfnt_off0000a4b0.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA4B0	4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.