MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.link, which is disguised as an answer key for a balancing equations worksheet. The document body also contains this URL and numerous other links to external PDFs, many hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.
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.link/pify?keyword=balancing+equations+worksheet+part+1+answers
- http://files.blessedredeemerpb.org/uploads/1/3/0/7/130775677/woxaw-zosiditos-milujexozilo-lebaforugo.pdf
- http://files.wildfireartisans.com/uploads/1/3/1/4/131453598/49fe56.pdf
- https://static.usrfiles.com/ugd/d954c5_6002e172cc3b4f1d926263dabece2274.pdf
- https://static.usrfiles.com/ugd/52b593_7206d5ee34f844449e9aeec4307be0d3.pdf
- https://static.usrfiles.com/ugd/7c30af_fa93cd3e8b7043588e228b9cba18ab36.pdf
- https://cdn.shopify.com/s/files/1/0437/4193/7818/files/facebook_video_er.pdf
- https://cdn.shopify.com/s/files/1/0439/8442/1022/files/89826561729.pdf
- https://cdn.shopify.com/s/files/1/0433/3119/0952/files/ts_16949_standard.pdf
- https://cdn.shopify.com/s/files/1/0433/3905/5253/files/transunion_free_annual_credit_report_request_form.pdf
- https://cdn.shopify.com/s/files/1/0427/6623/7852/files/79648873020.pdf
- https://cdn.shopify.com/s/files/1/0464/9805/4312/files/21293985773.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_off00005d69.binbc08839a0de1134e3204096245b8d8cc4583bc2a3147164892b8e222c0b04466 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D69 | 5460 bytes |
font_01_sfnt_off00007004.binc96e94fba18f9c434e13cdd2a2a92b4aa2c4f2f2b057b10752a18ae455c992ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7004 | 9940 bytes |
font_02_sfnt_off00009208.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9208 | 4324 bytes |
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