MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to known malicious redirectors or disposable hosting. The document body, though heavily obfuscated, appears to be a lure related to academic syllabi. The heuristic firings strongly indicate this PDF is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9668
Heuristics 5
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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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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://ggtraff.ru/aws?utm_term=bsc+nursing+2nd+year+syllabus+ruhs+pdf
- https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/72d7dd03fbce46b.pdf
- https://cdn-cms.f-static.net/uploads/4374968/normal_5fafdfc01e5ec.pdf
- https://mivubifazexaj.weebly.com/uploads/1/3/4/3/134381565/gokuxerifoxak_wetikadoj_fitawedi_nolejafa.pdf
- https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/d96ab15ee.pdf
- https://xukukotazu.weebly.com/uploads/1/3/4/6/134654047/gejeduwopasez_nujotof_fozigitomami_fijaxikokeg.pdf
- https://pojozuwowate.weebly.com/uploads/1/3/4/6/134631913/7f3b33caffa.pdf
- https://cdn-cms.f-static.net/uploads/4393502/normal_5fb402bb0b892.pdf
- https://vejifopa.weebly.com/uploads/1/3/4/4/134461381/siwozukikus_paxuxivefixes.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/0e94e057-e692-4f54-b543-3afe637a8e62/prepare_the_journal_entry_to_record.pdf
- https://uploads.strikinglycdn.com/files/d952ca61-21d0-48a1-b8f5-ce485c486dd9/82766548002.pdf
- https://uploads.strikinglycdn.com/files/b06c0113-118b-4e90-b8cf-04b66c947a5b/chapter_2_study_guide_using_si_units_answers.pdf
- https://s3.amazonaws.com/juzinaramip/genetics_matching_worksheet_answer_key.pdf
- https://s3.amazonaws.com/wanasuvedigo/81321470160.pdf
- https://s3.amazonaws.com/neviwove/adonit_snap_android.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e363.bin138506deba3d9835e4ba0ea597413126c214b099235787c9b89f39f743946575 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE363 | 5840 bytes |
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