PDF malware analysis — malicious · 4726b427eacbd0ff

MALICIOUS

PDF

41.4 KB Created: 2020-08-30 02:47:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a1c8f64e289181629ddc5f50c85e3ad3 SHA-1: f299524701d25aa25538cc57277e0984971362fa SHA-256: 4726b427eacbd0ff3c069535a61e74af875c2b57b92e296d107c9836832fa86b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL `https://ttraff.com/wix?keyword=trial+of+piercing+truth+map` is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links pointing to external PDF files, suggesting a coordinated effort to distribute malicious content or phish users.

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.com/wix?keyword=trial+of+piercing+truth+map
- https://static.usrfiles.com/ugd/b8c837_f139695ee2484889a870e9f9d6725a17.pdf
- https://static.usrfiles.com/ugd/b8c837_00b3d5b5938c44d1b04ac96dc5199399.pdf
- https://static.usrfiles.com/ugd/e4a001_ba9d76f607f04f91b27c28733bcda5f1.pdf
- https://cdn.shopify.com/s/files/1/0447/5407/5799/files/what_does_occlusal_guard_by_report_mean.pdf
- https://cdn.shopify.com/s/files/1/0433/0517/3147/files/23143113378.pdf
- https://cdn.shopify.com/s/files/1/0437/6199/1841/files/access_icloud_files_android.pdf
- https://cdn.shopify.com/s/files/1/0437/9141/7505/files/85692734386.pdf
- https://cdn.shopify.com/s/files/1/0434/5770/8193/files/pewarizoresawiw.pdf
- https://cdn.shopify.com/s/files/1/0437/8496/2200/files/71796968878.pdf
- https://static.usrfiles.com/ugd/77eba6_15419040604b4c3982a457363fca9bf4.pdf
- https://static.usrfiles.com/ugd/b8c837_9a1e20dd27f2416ea1efae8364f4157a.pdf
- https://static.usrfiles.com/ugd/1c8c6c_187eec046f2a4294a8d15ec06998e1f4.pdf
- https://static.usrfiles.com/ugd/87a178_8f628de48a4b47888bb5f81de1e74817.pdf
- https://static.usrfiles.com/ugd/e4ff69_55d0d03041bd45ddb24d9baf19b53515.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_off00006338.bin` `2eeb50f116d013a59c3138eeb36320c6528cf4c2845cd272b32e16b9ca96d4e0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6338	5200 bytes
`font_01_sfnt_off000074bf.bin` `0fc86a26af404b2f8768bf58329d641fe43ccdc9419b02603eda73fd041f8c97`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74BF	10636 bytes

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