MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to academic writing and includes the same malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly indicated maliciousness, and the presence of a redirector link reinforces this assessment.
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.com/pify?keyword=academic+writing+for+graduate+students+3rd+edition+answer+key+pdf
- http://kuragu.breinerlawllc.com/uploads/1/3/0/8/130874431/8381042.pdf
- http://files.tenyearsonestep.com/uploads/1/3/1/3/131383934/475a0f9.pdf
- http://files.cubcountry.org/uploads/1/3/1/4/131438392/7344747.pdf
- http://files.aspervalley.com/uploads/1/3/2/3/132303312/setebamekovuxo-xejip.pdf
- http://files.zoewilsonnutrition.com/uploads/1/3/1/4/131437636/1016373.pdf
- https://cdn.shopify.com/s/files/1/0428/8082/7558/files/28754375810.pdf
- https://cdn.shopify.com/s/files/1/0430/6393/5129/files/72297226472.pdf
- https://cdn.shopify.com/s/files/1/0431/1495/4908/files/bakobifulogomosixufijodok.pdf
- https://cdn.shopify.com/s/files/1/0430/7091/4717/files/bezaguwivukexan.pdf
- https://cdn.shopify.com/s/files/1/0435/1806/6843/files/oliver_super_55_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdf
- https://cdn.shopify.com/s/files/1/0434/4827/1000/files/89338622087.pdf
- https://cdn.shopify.com/s/files/1/0431/4267/6636/files/xirugilopumo.pdf
- https://cdn.shopify.com/s/files/1/0432/1063/7476/files/71211778897.pdf
- https://cdn.shopify.com/s/files/1/0446/9896/0026/files/monster_handbook_d_d.pdf
- https://cdn.shopify.com/s/files/1/0434/4902/4669/files/java_tm_platform_se_binary_not_responding.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_off0000b8e7.bin2b1b1d2933be6027296fd2a6527faf213663bef44409f3e2b4b773fff156edf0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8E7 | 5852 bytes |
font_01_sfnt_off0000cce6.bin111b5640adb1568e2043659b366c54bf5ca3ecb84833fefd7da2ebb28dcedd3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCE6 | 9880 bytes |
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