MALICIOUS
170
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains multiple critical heuristics indicating it is a dropper. It uses invisible and repeated links to deliver a payload, specifically an executable file from the URL http://67.23.226.12/~britcous/curtis/PAYMENT_SWIFT_TT_COPY_SCA.scr. A URL shortener, http://tinyurl.com/nv66est, is also present, likely to obfuscate the final destination. The presence of a download button lure further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier clean score 0.1327
Heuristics 6
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ClamAV: Pdf.Dropper.Agent-7229234-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-7229234-0
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Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LUREPDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
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Clickable URI uses URL shortener medium PDF_URL_SHORTENER_URIPDF contains a clickable HTTP(S) action whose destination is a URL shortener. This hides the final landing page from static review and is common in phishing redirect PDFs.
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://67.23.226.12/~britcous/curtis/PAYMENT_SWIFT_TT_COPY_SCA.scr PDF link annotation
- http://ocsp.verisign.com0In PDF document text
- http://tinyurl.com/nv66estIn PDF document text
- http://www.iec.chIn PDF document text
- http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comYouIn PDF document text
- http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text
- http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_08-31-2010.crl0ZIn PDF document text
- http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0In PDF document text
- http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn PDF document text
- http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In PDF document text
- http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn PDF document text
- http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In PDF document text
- http://www.microsoft.com/typographyIn PDF document text
- http://crl.verisign.com/ThawteTimestampingCA.crl0In PDF document text
- http://crl.verisign.com/tss-ca.crl0In PDF document text
- http://crl.microsoft.com/pki/crl/products/CodeSignPCA2.crl0OIn PDF document text
- http://www.microsoft.com/pki/certs/CodeSignPCA2.crt0In PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000056e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56E | 168868 bytes |
SHA-256: 346d447c60325bab9db30abfb12df0c68fc2cadb13faad1c67605cab60510032 |
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font_01_sfnt_off00013ec1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EC1 | 92776 bytes |
SHA-256: 1b4525009946580779a9aa3510a41286d537367fe59b52f55ebda5147e3ec26c |
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font_02_sfnt_off0001a3b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A3B3 | 81588 bytes |
SHA-256: 24cc8944cf9f875df63c5796291a6c9abe893b58de9f8a4869a23034767a4294 |
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