MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a 'worksheet' lure. The ML classifier strongly indicates maliciousness, and the presence of a link farm further supports a campaign aimed at distributing malware or conducting phishing attacks.
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.ru/pify?keyword=labelling+a+clock+face+worksheet
- http://files.judelab.com/uploads/1/3/1/3/131380771/08912831c5.pdf
- http://files.timelesschocolates.com/uploads/1/3/1/4/131405958/345ebb84e.pdf
- http://files.vagabondphilosopher.com/uploads/1/3/0/7/130739945/wijipopekik.pdf
- http://files.vagabondphilosopher.com/uploads/1/3/0/7/13073
- https://cdn.shopify.com/s/files/1/0432/5448/1054/files/legabejowuwelisobe.pdf
- https://cdn.shopify.com/s/files/1/0432/9986/4734/files/84879299197.pdf
- https://cdn.shopify.com/s/files/1/0434/3998/0710/files/jirilemowoxijitipekovup.pdf
- https://cdn.shopify.com/s/files/1/0429/2309/8279/files/fatikoxorafapujow.pdf
- https://cdn.shopify.com/s/files/1/0430/7589/5450/files/napipofaleniratenogeda.pdf
- https://cdn.shopify.com/s/files/1/0433/9033/7189/files/sexakerexuguwel.pdf
- https://cdn.shopify.com/s/files/1/0429/7159/4911/files/tiniteguwunoxopejovodared.pdf
- https://cdn.shopify.com/s/files/1/0435/8324/2401/files/koxubexivetijuwis.pdf
- https://cdn.shopify.com/s/files/1/0432/3491/8558/files/85995804105.pdf
- https://cdn.shopify.com/s/files/1/0432/6811/2550/files/12167557464.pdf
- https://cdn.shopify.com/s/files/1/0428/5382/6726/files/mabilasega.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38030937597.pdf
- https://cdn.shopify.com/s/files/1/0431/4788/6743/files/fugum.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/dalejifosarujefani.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_off00005b4c.binbaefd08a459ce5b200f73ed705fd5ae5c93ab3f862fd65ca6f18e7a8c4c3b051 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B4C | 5168 bytes |
font_01_sfnt_off00006ce8.bin43d713c8c6d884b6e1db336d27fd91d430df3c61298dbbe3fa7f0d9f50430f5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CE8 | 9872 bytes |
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