MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and contains multiple heuristics indicating malicious intent. Specifically, it includes a link to a known malicious redirector and a large number of external PDF links, suggesting a link farm. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics, indicating a deliberate attempt to redirect the user. The primary attack pattern involves luring the user to click on a malicious link within the PDF.
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.cc/pify?keyword=acg+guideline+acute+pancreatitis+september+2013
- http://files.hokubeauty.com/uploads/1/3/2/7/132740270/6ff9815a6f8cd.pdf
- http://gubedibaz.chefsorenpedersen.com/uploads/1/3/1/4/131410538/3380009860.pdf
- http://lawefi.fitnessforyou.co/uploads/1/3/2/7/132740324/kiretamigazilubim.pdf
- http://files.jemosel.com/uploads/1/3/0/7/130739517/5071319.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/foregokepebesimenaxagi.pdf
- https://cdn.shopify.com/s/files/1/0428/9799/7991/files/masopotupamazedab.pdf
- https://cdn.shopify.com/s/files/1/0435/8373/3921/files/50091601991.pdf
- https://cdn.shopify.com/s/files/1/0448/6466/7810/files/autobiographie_dfinition.pdf
- https://cdn.shopify.com/s/files/1/0431/0132/3420/files/28041393325.pdf
- https://cdn.shopify.com/s/files/1/0434/7330/5750/files/26861986511.pdf
- https://cdn.shopify.com/s/files/1/0434/2605/4306/files/2792541124.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puxatofutedixa.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_off0000cbd6.bincb923ce5cafa61d46dd21245abff6dabae8dc872d4d4ec19731f955578be209c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBD6 | 6012 bytes |
font_01_sfnt_off0000e025.bin31d034a946a7a9a451fa14ffff4a0a7b49dba703230b5d941c560cd7b2bb95b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE025 | 11168 bytes |
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