MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded URLs, many of which point to link farms and redirectors, indicating a malicious intent to direct users to potentially harmful sites. The ML classifier strongly flagged this PDF as malicious. The presence of numerous links, including a redirector at 'https://ttraff.cc/wb?keyword=normal%20ultrasound%20anatomy%20of%20the%20musculoskeletal%20system%20pdf', suggests a phishing or malware distribution campaign.
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/wb?keyword=normal%20ultrasound%20anatomy%20of%20the%20musculoskeletal%20system%20pdf
- http://files.operationhood.org/uploads/1/3/1/4/131406274/pikutodan.pdf
- http://files.northwestclubracer.com/uploads/1/3/0/7/130776439/pizajab_kepif_teruga.pdf
- http://files.marinovdance.com/uploads/1/3/0/8/130814652/mabutazizi.pdf
- http://files.toughbookrescue.com/uploads/1/3/0/7/130739769/wolupidosifebuz_budazebam_lomedugatazuz.pdf
- http://files.umichfishing.com/uploads/1/3/1/4/131437823/narikufud_pavoputuko_noxuwavo.pdf
- http://files.nicolas-rigaux-photographe.com/uploads/1/3/1/1/131163563/d346a.pdf
- http://files.clairepassmore.com/uploads/1/3/0/7/130738915/gejoke.pdf
- https://metefodowu.files.wordpress.com/2020/06/11117710302.pdf
- https://velamejevar147843807.files.wordpress.com/2020/06/vapapavipewixifutawov.pdf
- https://dikuvaza.files.wordpress.com/2020/07/51366752902.pdf
- https://zapekijibu.files.wordpress.com/2020/07/40570986971.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53262414385.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_off00006456.bin921290095d9108f762fdf7547745c1576369b5bf65668ac0102c5fccc5d399b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6456 | 5364 bytes |
font_01_sfnt_off00007670.bin604b7a93e5824378b03c9d16dea8c7d0f1bb45dc14fc54861ad291b207b0537d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7670 | 9468 bytes |
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