MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a lure related to business communication and also contains the malicious URL. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content or phish users.
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=enquiry+letter+in+business+communication+pdf
- http://files.ucsbvsa.com/uploads/1/3/2/7/132741225/1589381.pdf
- http://wodukaf.infinitelightandlove.com/uploads/1/3/0/7/130775162/1349513.pdf
- http://varerez.becksusedappliances.com/uploads/1/3/1/4/131437657/a60c39.pdf
- https://cdn.shopify.com/s/files/1/0431/2462/1473/files/bilirenowome.pdf
- https://cdn.shopify.com/s/files/1/0434/0567/2597/files/magusikavagegufiz.pdf
- https://cdn.shopify.com/s/files/1/0432/0657/4240/files/93627747956.pdf
- https://cdn.shopify.com/s/files/1/0434/1222/6206/files/minecraft_tree_growth.pdf
- https://cdn.shopify.com/s/files/1/0429/2247/5687/files/anthony_giddens_sosyoloji_balang_okumalar.pdf
- https://cdn.shopify.com/s/files/1/0429/2454/0071/files/37311894643.pdf
- https://cdn.shopify.com/s/files/1/0434/0177/3212/files/investment_valuation.pdf
- https://cdn.shopify.com/s/files/1/0437/1572/3414/files/63826587454.pdf
- https://cdn.shopify.com/s/files/1/0437/2401/3722/files/5317056045.pdf
- https://cdn.shopify.com/s/files/1/0431/3363/2661/files/45796004349.pdf
- https://cdn.shopify.com/s/files/1/0438/4607/4525/files/thiruppavai_lyrics_in_tamil.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_off0000725d.bin73040301c67f550deb988bc1702dc1e2fcf9579c56f1692cc1f54abb411a3689 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x725D | 5628 bytes |
font_01_sfnt_off0000856f.binc9ac7ae986318a8056f1200f1424005532c0bfc9541e8476880734e6b33c040f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x856F | 10552 bytes |
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