MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged as malicious by a machine learning classifier and contains numerous embedded links, with at least one pointing to a known malicious redirector. The PDF also exhibits characteristics of a link farm, suggesting an attempt to distribute malicious content or conduct phishing. No scripts were extracted, but the sheer volume of links and the malicious redirector indicate a high likelihood of user-targeted malicious activity.
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.ru/pify?keyword=tally+voucher+entry+example+pdf
- http://zizonoxo.sitstayplayqld.com/uploads/1/3/1/4/131483281/6865594.pdf
- http://files.goldenriverorchard.com/uploads/1/3/1/4/131407668/bd2af8cf366b1.pdf
- http://files.toyourjoyaromas.com/uploads/1/3/0/8/130813357/1809611.pdf
- http://files.koogletheatre.com/uploads/1/3/0/9/130969712/nefowurut_fopenunu.pdf
- https://cdn.shopify.com/s/files/1/0431/1692/0996/files/metizafozewatilab.pdf
- https://cdn.shopify.com/s/files/1/0438/1065/2317/files/the_martian_online.pdf
- https://cdn.shopify.com/s/files/1/0433/6120/6422/files/61918310467.pdf
- https://cdn.shopify.com/s/files/1/0443/9366/0582/files/using_a_and_an_worksheets_for_kindergarten.pdf
- https://cdn.shopify.com/s/files/1/0431/8350/5562/files/20990962415.pdf
- https://cdn.shopify.com/s/files/1/0440/8098/8310/files/blackmagic_micro_studio_camera_4k_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/2739/8807/files/ambiente_de_trabajo_definicion.pdf
- https://cdn.shopify.com/s/files/1/0438/2598/7734/files/74675182644.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9361/files/nuredazapajazanusimeraz.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_off00005c5b.bin5426b049695151129a831a6bed201c7c4a6eafb90c665f11cd8ab28ecc699417 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C5B | 5232 bytes |
font_01_sfnt_off00006e02.binceae4b5bda32f95e299230486f4b2348e8e4bfc93923df72681853fc9c8b77b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E02 | 10080 bytes |
font_02_sfnt_off0000909a.bincd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x909A | 4324 bytes |
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