MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, appears to contain text related to 'peptic ulcer disease pathophysiology pdf', suggesting a lure to disguise malicious intent. The ML classifier strongly indicated maliciousness, and the presence of a redirector link is a high-confidence indicator of a phishing or malware delivery attempt.
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=peptic+ulcer+disease+pathophysiology+pdf
- http://files.unioncongregationalucc.org/uploads/1/3/0/7/130739480/2ac5a.pdf
- http://wafilu.athenstherapyco-op.com/uploads/1/3/1/4/131407089/1885880.pdf
- http://files.machinecrazyforever.com/uploads/1/3/0/9/130969356/tolipeleto.pdf
- http://files.youngatartmn.com/uploads/1/3/1/0/131070722/b8b8db69.pdf
- http://tisopeju.alonsotriguerosphotography.com/uploads/1/3/2/3/132303382/7b7f20764a2d898.pdf
- https://cdn.shopify.com/s/files/1/0437/6225/3978/files/ps_form_2976.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6654/files/effective_communication_definition.pdf
- https://cdn.shopify.com/s/files/1/0429/1582/3772/files/86061222849.pdf
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/wakadumexuxuviwifan.pdf
- https://cdn.shopify.com/s/files/1/0434/7022/5574/files/fourth_definition_of_acute_myocardial_infarction.pdf
- https://cdn.shopify.com/s/files/1/0436/2466/1154/files/xudulujoj.pdf
- https://cdn.shopify.com/s/files/1/0432/0631/2098/files/bepefaza.pdf
- https://cdn.shopify.com/s/files/1/0457/8164/7526/files/35429179334.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_off00005efa.bina323a34b59c61979d1f447e1d7f847026ab45f03f1bccb45b987818f2f89d9da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EFA | 5520 bytes |
font_01_sfnt_off000071ba.bin1ee5297f6237c0efcd27537f6cb10435204c95e087ea2710105cdeac8a2c2121 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71BA | 9980 bytes |
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