PDF malware analysis — malicious · 3995f007a20ae629

MALICIOUS

PDF

33.1 KB Created: 2020-09-01 08:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1bb6d00d41c1365a3ee9310ead984e30 SHA-1: b08204de5142f26a16fda54e27ea1b85ad13492d SHA-256: 3995f007a20ae629c377efced1b38191171d4dfe5c595b4dcae34ba8afdea37a

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to 'static.usrfiles.com'. The document body, though heavily obfuscated, also contains the malicious URL. These factors strongly suggest the PDF is designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=can%2527+t+let+you+go+cueshe+free
- https://static.usrfiles.com/ugd/b8c837_12985fe92d964c679b808b2fc07d15e6.pdf
- https://static.usrfiles.com/ugd/37321e_9adaa096a63e49a698c09d01646fdc83.pdf
- https://static.usrfiles.com/ugd/cac9e4_90e74b12cc0a403ab4f4c265e0d1e007.pdf
- https://static.usrfiles.com/ugd/4cf28d_fc38ee9cc4dc470fb7357818822b0beb.pdf
- https://static.usrfiles.com/ugd/6f58fb_589cb6aece55406c8dfef213cb8d511a.pdf
- https://static.usrfiles.com/ugd/e7e4a0_a0f6e96b782741e5adf358821ce547c2.pdf
- https://static.usrfiles.com/ugd/b8c837_f332d745aa2b48bc8a08515fda18557a.pdf
- https://static.usrfiles.com/ugd/b8c837_8f3cfe0583d54cd0b63d2ef6556a1ace.pdf
- https://static.usrfiles.com/ugd/6cf392_8476b88406b34807a3eefe40c1cd5188.pdf
- https://static.usrfiles.com/ugd/b8c837_d14c48d4c1664a3da4a58274d6d36e87.pdf
- https://static.usrfiles.com/ugd/b0cd75_d3a3e35e1d2749af925c57eb9de59735.pdf
- https://static.usrfiles.com/ugd/9ff9b8_56e58cec8e064e19bc359398b1697f87.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_off00004686.bin` `8f27e32849df28f03a715f2ec5494e2399583b2bce2dea26e4782d304e224303`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4686	5184 bytes
`font_01_sfnt_off00005834.bin` `e6aac02b953da378efb6c6e7bc3f05bbef281f9917ed31791c07da8ccdadc9aa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5834	9348 bytes

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