MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'reference letter template academic'. The presence of many external PDF links suggests a link farm or SEO poisoning attempt, likely to obscure the malicious redirector.
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=reference+letter+template+academic
- http://files.legaciesdiscovered.com/uploads/1/3/0/9/130969532/7862807.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0427/9320/5916/files/nozidop.pdf
- https://cdn.shopify.com/s/files/1/0433/4593/6534/files/patebekomarabujurugaj.pdf
- https://cdn.shopify.com/s/files/1/0428/7699/3702/files/deezloader_descargar_pc.pdf
- https://cdn.shopify.com/s/files/1/0432/8990/3264/files/nexuzaputezolujadulim.pdf
- https://cdn.shopify.com/s/files/1/0429/6704/0154/files/6110376361.pdf
- https://cdn.shopify.com/s/files/1/0427/8986/3580/files/39345287516.pdf
- https://cdn.shopify.com/s/files/1/0433/8991/1194/files/infinity_alt_code.pdf
- https://cdn.shopify.com/s/files/1/0428/9055/9655/files/xafufetamasopofirafop.pdf
- https://cdn.shopify.com/s/files/1/0438/2516/8544/files/pipojo.pdf
- https://cdn.shopify.com/s/files/1/0433/3862/9270/files/76150588525.pdf
- https://cdn.shopify.com/s/files/1/0430/4715/7911/files/gawesa.pdf
- https://cdn.shopify.com/s/files/1/0431/5011/4965/files/zosyn_davis_drug_guide.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000089fd.bin7809d625359e3deae0c7fea3423350cbbafe270451023bb88186e1dbc1ebaec5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89FD | 5132 bytes |
font_01_sfnt_off00009b54.binb60dd134fa0f1a07d78ac33ff819c744e75c1a521f1ec90852bfdd9eac1f7f2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B54 | 9976 bytes |
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