MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text and URLs related to 'free math books', suggesting a lure to a malicious site. The presence of a malicious redirector link and the ML classifier's high confidence indicate a malicious intent, likely to redirect users to a phishing or malware distribution site.
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.me/wix?keyword=free++math+books+pdf+format
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://static.usrfiles.com/ugd/565485_503cc218310f49a38b81b728cec57b35.pdf
- https://static.usrfiles.com/ugd/97aff7_6cf90f5209f54d5fb87facdffe5c1172.pdf
- https://static.usrfiles.com/ugd/b52961_590f5033b54e40db99a0a0a2c440ec9d.pdf
- https://static.usrfiles.com/ugd/1b7c00_b899ae788f0947a0b10ba044defeb0f2.pdf
- https://static.usrfiles.com/ugd/85c99c_f94861742c974bc7ae29305ddefa9eb4.pdf
- https://static.usrfiles.com/ugd/3826db_980ff45f2b62493999a8a4791b182afb.pdf
- https://cdn.shopify.com/s/files/1/0430/4060/4313/files/adolf_hitler_history_in_tamil_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/1237/4174/files/chefman_air_fryer_3._5l_manual.pdf
- https://cdn.shopify.com/s/files/1/0435/4772/1882/files/42351490976.pdf
- https://cdn.shopify.com/s/files/1/0439/1596/8680/files/amharic_to_tigrinya_translation.pdf
- https://cdn.shopify.com/s/files/1/0430/3791/7333/files/seven_gifts_of_the_holy_spirit.pdf
- https://cdn.shopify.com/s/files/1/0435/7108/5475/files/xuzuxinolobe.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005be4.bin2081ea3975314888fa2b1a79bb1871a519ce323d96144f25dc0730dc1940afe1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BE4 | 5044 bytes |
font_01_sfnt_off00006cfb.bin031b0c8d4a9463e46f0175242d65d34a5eac2eb95b3940d220d49cc6e0a31126 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CFB | 9824 bytes |
font_02_sfnt_off00008e9a.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E9A | 4324 bytes |
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