MALICIOUS
92
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a seemingly relevant keyword. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure. The primary attack vector appears to be a phishing attempt using a deceptive document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 3
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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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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=valvular+heart+disease+esc+2020+pdf
- http://files.stampscience.com/uploads/1/3/2/7/132740361/serivaru_jajifafodupan.pdf
- http://files.amadauniversity.com/uploads/1/3/1/4/131414743/solibewafidawu.pdf
- http://files.newtownbaptistfellowship.com/uploads/1/3/1/8/131856723/6641252.pdf
- http://files.leannecunningham.com/uploads/1/3/0/7/130775413/fiwamupezebe.pdf
- http://files.providence-title.com/uploads/1/3/1/3/131379325/tijinitojoxewarekok.pdf
- https://cdn.shopify.com/s/files/1/0435/4126/6587/files/61218336823.pdf
- https://cdn.shopify.com/s/files/1/0437/0425/4615/files/84059727536.pdf
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/xixodumat.pdf
- https://cdn.shopify.com/s/files/1/0432/5713/5257/files/capacitors_explained.pdf
- https://cdn.shopify.com/s/files/1/0431/5525/9560/files/biomechanics_of_sport_and_exercise_peter_mcginnis.pdf
- https://cdn.shopify.com/s/files/1/0428/1548/8163/files/12107825781.pdf
- https://cdn.shopify.com/s/files/1/0432/7872/9374/files/supikuruvopan.pdf
- https://cdn.shopify.com/s/files/1/0439/1036/5339/files/iowa_state_vpn.pdf
- https://cdn.shopify.com/s/files/1/0430/3260/8921/files/sokumivozupotamejat.pdf
- https://cdn.shopify.com/s/files/1/0432/5962/5627/files/53184611620.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_off000271b1.bin18e0658632585400429ef2f7aa698d914a1168d4f71d8f2d4a5e546732fbb689 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x271B1 | 5544 bytes |
font_01_sfnt_off0002848c.bin5046ed79815b6c5afb5cf23a597b8ed7421011ba0eda320d7247f93905ff3deb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2848C | 15656 bytes |
font_02_sfnt_off0002b5fb.binebaa9d42c58e3fd25c8264bcf4ef2319fee467c92cf53dcc1f377a20fc8d39b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2B5FB | 16148 bytes |
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