MALICIOUS
152
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.com, disguised as a fax cover sheet template. This suggests a phishing or social engineering attack aimed at redirecting users to malicious content. The PDF also contains a large number of embedded URLs, many pointing to static.usrfiles.com, which is flagged as a link farm. No scripts were extracted, but the primary malicious behavior is the redirection via the embedded link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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.
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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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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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.com/wix?keyword=fax+cover+sheet+template+confidential
- https://static.usrfiles.com/ugd/185811_d7fbe7c8243147b7901e4597454442c4.pdf
- https://static.usrfiles.com/ugd/b8c837_e303e836fcfc4286a25534a1be6a9e77.pdf
- https://static.usrfiles.com/ugd/9cc572_b171b758d3eb46b394ca837927de7e85.pdf
- https://static.usrfiles.com/ugd/c268f7_03048bfc2f2a4a57b4e5da243257bb57.pdf
- https://static.usrfiles.com/ugd/de65f7_8569f97f54454cc682de046840ce11a3.pdf
- https://cdn.shopify.com/s/files/1/0429/7208/6435/files/55156576648.pdf
- https://cdn.shopify.com/s/files/1/0438/1766/4674/files/15089148172.pdf
- https://cdn.shopify.com/s/files/1/0431/4031/7350/files/transform_grammar_to_chomsky_normal_form.pdf
- https://cdn.shopify.com/s/files/1/0433/5045/8520/files/gokoribit.pdf
- https://cdn.shopify.com/s/files/1/0432/0067/6003/files/cephalgia_kronis.pdf
- https://cdn.shopify.com/s/files/1/0430/5669/3397/files/nafesojugipusefeg.pdf
- https://static.usrfiles.com/ugd/9ec29b_10b6d908570b4dab82ae1d7e5972050e.pdf
- https://static.usrfiles.com/ugd/4dd980_62550656fc9c4d51b928f8c14a9bf08b.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_off00006bdc.bin8545fe0584d79ab3d0eeaff298be1e6ffc3a906ec21bf5fa6048e3b2141a1c44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BDC | 5268 bytes |
font_01_sfnt_off00007da2.bin6107b6e6d4fac5559a869b5030bbb2d7bc8a36176c79bba03a932d172b1f78c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DA2 | 10204 bytes |
font_02_sfnt_off0000a08e.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA08E | 4324 bytes |
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