MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to funnel victims to further malicious content. Additionally, the PDF exhibits characteristics of a link farm, containing numerous links to external PDFs hosted on static.usrfiles.com. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. The presence of multiple external links suggests an attempt to broaden the attack surface or distribute payloads through various means.
Heuristics 4
-
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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_FARMSmall 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.
-
Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
-
Embedded URL info EMBEDDED_URLOne 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=csumb+student+orientation
- https://static.usrfiles.com/ugd/b8c837_ef403b0c606d477e9fae24e17ab10a88.pdf
- https://static.usrfiles.com/ugd/76156b_045183bceaf74cf68dffff3fc6ce4cb6.pdf
- https://static.usrfiles.com/ugd/ab922d_18cc36b6179841e3b46396bb6dea2710.pdf
- https://static.usrfiles.com/ugd/1be480_189479bb34a64633a2b7310aba31d95a.pdf
- https://static.usrfiles.com/ugd/eaf48f_8571dcf91457474c8fc9625a4d0db10c.pdf
- https://static.usrfiles.com/ugd/b8c837_64069673e5bd42459bcd90bf7354534d.pdf
- https://static.usrfiles.com/ugd/c0b427_13e01142e8b442339fac132dee5278e2.pdf
- https://static.usrfiles.com/ugd/b8c837_b2cef5258e2f4b43b3ac8039376843e3.pdf
- https://static.usrfiles.com/ugd/1e4819_b953068543674fbabe66cc3d0b8e71f1.pdf
- https://static.usrfiles.com/ugd/b8c837_935f39ae9fc64dfdafd45904ef9bd08c.pdf
- https://static.usrfiles.com/ugd/dad90e_6310590e936e4814b617fa87c100c746.pdf
- https://static.usrfiles.com/ugd/fb5067_85ef4cb8f40b4e668680c08e0ecb9728.pdf
- https://cdn.shopify.com/s/files/1/0429/7618/2426/files/vizelilelupujonojokix.pdf
- https://cdn.shopify.com/s/files/1/0427/5198/3783/files/6966130041.pdf
- https://cdn.shopify.com/s/files/1/0432/0552/5661/files/19025692161.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11383010616.pdf
- https://cdn.shopify.com/s/files/1/0457/7525/7756/files/chess_for_windows_8._1.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_off00006b45.bind8adab1d5704d25fe26342c7621482f46f2d4251b82f59465cdfd3fef20c85c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B45 | 4984 bytes |
font_01_sfnt_off00007c0e.bin9b96b7ba99a81a04e404492592c08841540c2a898115a43afa49e982d78fdb2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C0E | 10588 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.