MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm and a malicious redirector URL, masquerading as a Microsoft Visual C++ Redistributable download. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which likely leads to further malicious 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.ru/pify?keyword=microsoft+visual+c+redistributable
- http://files.escollins.com/uploads/1/3/0/7/130739251/bekozinixekesasaxake.pdf
- http://files.motoworxiow.com/uploads/1/3/0/7/130776267/9373330.pdf
- http://files.jamesferris.ca/uploads/1/3/2/6/132681916/wesoxivabedusigi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mudamizoxudaxusuzo.pdf
- https://cdn.shopify.com/s/files/1/0431/7678/8117/files/gibawari.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/pukojuv.pdf
- https://cdn.shopify.com/s/files/1/0431/3323/9457/files/37675105241.pdf
- https://cdn.shopify.com/s/files/1/0437/4868/8033/files/tasizalelerijaf.pdf
- https://cdn.shopify.com/s/files/1/0435/4303/6053/files/97090642900.pdf
- https://cdn.shopify.com/s/files/1/0427/7154/6279/files/53874812096.pdf
- https://cdn.shopify.com/s/files/1/0429/9377/8837/files/mebovojaxugokixitagepajek.pdf
- https://cdn.shopify.com/s/files/1/0430/7514/1794/files/dozoxovujezujoxi.pdf
- https://cdn.shopify.com/s/files/1/0431/4788/6743/files/lolefakexadojuf.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_off000044a2.bin35fc9f15d2cbef029ae7d7135197e1092fcbedec85fbd1a04ea0965fdf8d9cd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x44A2 | 4996 bytes |
font_01_sfnt_off000055b5.bin709dc077b5e1bf8d9bfceb4ea942f4ff8ff64583d72b339826860f0a00d041c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55B5 | 9264 bytes |
font_02_sfnt_off0000758d.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x758D | 4324 bytes |
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