MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. The document body, though heavily obfuscated, contains text related to 'free download proxifier 3.21 registr', suggesting a lure for software downloads. Multiple external URIs were found, with one pointing to a URL containing 'utm_term=free+download+proxifier+3.21+registr', reinforcing the download lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.5871
Heuristics 4
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://ambrose.edu/sites/default/files/webform/xixarujopotagateregigo.pdf In PDF document text
- http://portal-mysigma.com/system/files/student-proof/pifudolaloxafedotodela.pdfIn PDF document text
- http://www.pbttphtk.gov.my/sites/default/files/webform/nolukaronedibikix.pdfIn PDF document text
- http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/powevalixerofewum.pdfIn PDF document text
- https://www.mainephilanthropy.org/sites/default/files/50588642306.pdfIn PDF document text
- https://www.enwidth.com/sites/default/files/webform/resumes/22435641867.pdfIn PDF document text
- https://natsihwa.org.au/sites/default/files/webform/kixeje.pdfIn PDF document text
- http://portal-mysigma.com/system/files/student-proof/woximinel.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=free+download+proxifier+3.21+registrPDF link annotation
- https://printandmail.princeton.edu/system/files/webform/21250884575.pdfIn PDF document text
- https://www.vub.be/sites/vub/files/webform/43319512550.pdfIn PDF document text
- https://www.healthdata.org/sites/default/files/resumes/58023923203.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d946.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD946 | 5704 bytes |
SHA-256: 5b4c1cf887fb9c4a3b576b316a709cfbe3b49d22dc10fe1a52274fae71ab98d8 |
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font_01_sfnt_off0000ece0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE0 | 6068 bytes |
SHA-256: 7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a |
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