MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to be a lure related to 'vocabulary worksheets 3rd grade pdf'. No scripts were extracted from this sample, but the presence of numerous external links indicates an attempt to redirect the user to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.8574
Heuristics 5
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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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External URI info PDF_URIPDF contains an external URL action
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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://bologen.ru/award?keyword=vocabulary+worksheets+3rd+grade+pdf
- http://gimatadokij.mygamesonline.org/75654293514.pdf
- https://static.s123-cdn-static.com/uploads/4445558/normal_5ffdd0e234b59.pdf
- https://rogapunuki.weebly.com/uploads/1/3/4/3/134375427/boxosot.pdf
- https://cdn-cms.f-static.net/uploads/4383579/normal_5fe893023ad47.pdf
- https://static.s123-cdn-static.com/uploads/4404730/normal_5ff69aa5aa570.pdf
- https://cdn-cms.f-static.net/uploads/4374189/normal_603fef1d67176.pdf
- https://mowuvesetotodoj.weebly.com/uploads/1/3/0/9/130969800/fc6ef1.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_1ed0d4662af94d3896d0d4beaeedf7ec.pdf?index=true
- http://vajapojaperusu.myartsonline.com/92617089951.pdf
- https://s3.amazonaws.com/zarevizebi/36422721346.pdf
- https://c216880a-03a2-4774-ab7e-121c93799e8f.filesusr.com/ugd/b5aed9_40d8cc860ea64e739edab6f60b7573c4.pdf?index=true
- https://3ff4c494-4984-418a-b709-7a5c611cca0a.filesusr.com/ugd/adbee0_31557e1a4d5249cf9df0a7f54806f17c.pdf?index=true
- https://s3.amazonaws.com/miwolezedubujoz/7181270792.pdf
- https://de7eff9d-5c50-4122-bb99-ee112abf7a8f.filesusr.com/ugd/db8f21_fb226257b3a640cdafa78050db3872c2.pdf?index=true
- https://uploads.strikinglycdn.com/files/39aeda9b-f34c-4f0b-a59c-ca4ab2fe212d/jesevisapalotete.pdf
- https://uploads.strikinglycdn.com/files/10b0c648-63d7-446f-8d22-d14ce08a48c5/kapimekuxideludoxemeteg.pdf
- https://uploads.strikinglycdn.com/files/fdb4accb-3f9e-4f7e-81c0-fff17d56fc5e/satorekalepa.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e362.bind6100b86444e6343895386ebaeeefdd1e23a0ef8af55922976dac2033cca1245 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE362 | 5672 bytes |
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