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 worksheet. This suggests a phishing or malware delivery attempt. The PDF also hosts a large number of external links, many pointing to static.usrfiles.com, which is flagged as a link farm. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the primary malicious activity appears to be the redirection to the ttraff.com URL.
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=transformations+of+logarithmic+functions+worksheet+pdf
- https://static.usrfiles.com/ugd/b8c837_ae80f6fee66a4a9f925403b7e292f7fb.pdf
- https://static.usrfiles.com/ugd/b8c837_207b4d899bf84769bf205cc39dfc9b4f.pdf
- https://static.usrfiles.com/ugd/b8c837_27577276623640c6a825ef9012684114.pdf
- https://static.usrfiles.com/ugd/b8c837_4d88feceb1d34f07a902010f38dc25c3.pdf
- https://static.usrfiles.com/ugd/b8c837_4c8325fd6a234d2886ca14550ba56567.pdf
- https://static.usrfiles.com/ugd/b8c837_e9030ce3d0a24487bfa3df5b395c9017.pdf
- https://static.usrfiles.com/ugd/83b1b3_48448134a54a4e9ea1cc0e0bc19d2469.pdf
- https://static.usrfiles.com/ugd/158fb9_3233d839038e4205ad572e62f0c6312a.pdf
- https://static.usrfiles.com/ugd/b8c837_78e3fc5d00d94c9bac31901b4132a2a7.pdf
- https://static.usrfiles.com/ugd/b8c837_3d717c555f134249bce862f49eaed3ef.pdf
- https://static.usrfiles.com/ugd/b8c837_b54901a16fa140ae866ad1d87633440b.pdf
- https://cdn.shopify.com/s/files/1/0428/1240/7967/files/google_play_protect_para_android.pdf
- https://cdn.shopify.com/s/files/1/0428/6211/7030/files/lapokibofenijovomejepew.pdf
- https://cdn.shopify.com/s/files/1/0428/5153/2963/files/93368901860.pdf
- https://cdn.shopify.com/s/files/1/0434/1733/8005/files/pazusukikukokev.pdf
- https://cdn.shopify.com/s/files/1/0433/8132/5987/files/unscramble_sentences_worksheets.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_off00007370.bin4fb03f3fbf44edd5e22636d55419573c3371a19cd97ff06f837290dd957222fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7370 | 5672 bytes |
font_01_sfnt_off0000869b.bin7b323f1833dc8ba286e78cceb0c265cc67ce050e615fd94a897cf339ce16ff35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x869B | 12948 bytes |
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