PDF malware analysis — malicious · 23f403ec5d2ad70a

MALICIOUS

PDF

37.5 KB Created: 2020-09-02 01:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bc6a1612aac302b06081a2cd4b69d21a SHA-1: f88a5461455149b93acdaeeda8c162f0abf36575 SHA-256: 23f403ec5d2ad70a170f31a42e1eae96f412e4975cc25fd071935738e6519192

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.me, which is likely used to funnel victims to further malicious content. The PDF also hosts a large number of external links, many pointing to benign files on static.usrfiles.com, suggesting a link farm or SEO poisoning tactic to improve the ranking of the malicious redirector. The ML classifier strongly supports the malicious nature of this PDF.

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.me/wix?keyword=lux+aeterna+morten+lauridsen+sheet+music
- https://static.usrfiles.com/ugd/01e791_092c7d86043a4ff682d55d411e66dee7.pdf
- https://static.usrfiles.com/ugd/1cfe37_6e3d02f4361549c0aa1a1dd86d123c49.pdf
- https://static.usrfiles.com/ugd/b8c837_992a715decba46c8a8f23dc75744b9ec.pdf
- https://static.usrfiles.com/ugd/b8c837_9a487ad2d96e4df2949d3a1a9a78f803.pdf
- https://static.usrfiles.com/ugd/b8c837_997ae683a9c349bf93a1d04be82e9c43.pdf
- https://static.usrfiles.com/ugd/f91cf1_50d0cbf847414dc283bd2cb620e4e8e5.pdf
- https://static.usrfiles.com/ugd/ad2ade_888bd049968e4e468028f291880293f2.pdf
- https://static.usrfiles.com/ugd/2ac701_0614f9760ec6489e93b553786583cc30.pdf
- https://static.usrfiles.com/ugd/c345b0_4a11bd9b76414e319e2e71d70d6a4ba4.pdf
- https://static.usrfiles.com/ugd/b8c837_f8247b8008014c66982ddd0acc608df6.pdf
- https://static.usrfiles.com/ugd/89064d_ce145dd3cfe84eb2ad01e69df43dbba9.pdf
- https://static.usrfiles.com/ugd/b8c837_7ec6d297e704478185c5fe80a8a2027b.pdf
- https://static.usrfiles.com/ugd/0cd3a8_d293c22d1d86443f804e580cdc66de71.pdf
- https://static.usrfiles.com/ugd/e745be_7b3bff73a2f04001b0e0c7f6bb93057d.pdf
- https://static.usrfiles.com/ugd/7f929b_f6eea90bcb894a9e917269126fe1b5bc.pdf
- https://static.usrfiles.com/ugd/bb13a2_37abc549f25f43de889a688676ef7957.pdf
- https://static.usrfiles.com/ugd/0bcf16_fc56a5b367e942998426804eff3ecb27.pdf
- https://static.usrfiles.com/ugd/98e298_997e07df960e485682fcbc48a02fbd1e.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_off00005525.bin` `476f966469c0e891bbacf06e58da4b9f3b967e43a9616476153c15adab49d5d6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5525	5188 bytes
`font_01_sfnt_off000066a3.bin` `3a6f28bc704768456c94fba8e52a93ea68544544f2f1b670d3095391fa9404d9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66A3	10072 bytes

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