MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious link disguised as an admission form, which redirects to a known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body and embedded links suggest a lure to a phishing or malware distribution site.
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=ccs+university+b.+ed+admission+form+2018
- http://sarew.schihei.eu/uploads/1/3/2/7/132740470/kasotavudo.pdf
- http://files.reveal-and-heal.com/uploads/1/3/0/9/130969710/mesoxen.pdf
- http://files.beardensbackacre.com/uploads/1/3/0/9/130969728/5229850.pdf
- https://cdn.shopify.com/s/files/1/0437/3551/5290/files/98993206390.pdf
- https://cdn.shopify.com/s/files/1/0430/0029/9683/files/bicornuate_uterus.pdf
- https://cdn.shopify.com/s/files/1/0432/2515/3698/files/bradford_white_defender_water_heater_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/0936/7454/files/the_curse_causeless_shall_not_come.pdf
- https://cdn.shopify.com/s/files/1/0432/8869/0841/files/la_boite_a_merveille.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/jufogowaw.pdf
- https://cdn.shopify.com/s/files/1/0434/0973/5845/files/84389837630.pdf
- https://cdn.shopify.com/s/files/1/0435/0833/4744/files/nedejuladur.pdf
- https://cdn.shopify.com/s/files/1/0434/4204/5090/files/rorix.pdf
- https://cdn.shopify.com/s/files/1/0431/9431/9009/files/69736858148.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_off0000651a.bin64652300dd7ab919dc724b8d092427dbceefb182bac72a42d170b3fc1c2614a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x651A | 5896 bytes |
font_01_sfnt_off0000791c.bin1338a6ba0752a5040f2ccfdb72441a0b389aacb3565759d02dd1541247a83d0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x791C | 10248 bytes |
font_02_sfnt_off00009c2d.bin0b91ce5b4ed971f6468c217e95cba0cfc3ce082299213cf7b76464ca81e4bc95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C2D | 8628 bytes |
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