MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating embedded JavaScript and a link farm structure. The document body is heavily obfuscated, but the presence of embedded JS and numerous external URIs suggests an attempt to redirect users to malicious sites. The 'SE_CALLBACK_LURE' heuristic further indicates a potential phishing or scam pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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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://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/3660954883.pdf In PDF document text
- http://www.frank-diagn.hu/userfiles/files/88855022181.pdfIn PDF document text
- http://www.sauminandy.com/fckimages/file/jovojonoweduxeni.pdfIn PDF document text
- https://aporpeter.ro/userfiles/file/wotevajuginobafavufuvidu.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/mixewopikigujelog.pdfIn PDF document text
- http://olgapolyakova.com/files/files/pidekegefim.pdfIn PDF document text
- http://viral-list-machine.com/ckfinder/userfiles/publics/files/87608109251.pdfIn PDF document text
- http://industrialsupplies.pk/userfiles/files/vogozinab.pdfIn PDF document text
- http://amidoux-peintures.com/ckfinder/userfiles/files/33849979014.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c56dd6887---lefabosixuloromak.pdfIn PDF document text
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/74531667792.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/08644a7b8c4235d331e88aebe7484012/65551506273.pdfIn PDF document text
- https://tessuno.com/upload/files/6131b9ce9f6d7.pdfIn PDF document text
- https://bazab.ru/ckfinder/userfiles/files/4630566712.pdfIn PDF document text
- http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/bafezulazilobulixekul.pdfIn PDF document text
- http://vom-ragnaroek.de/uploads/file/75956216703.pdfIn PDF document text
- http://massimobertoarchitetto.com/userfiles/files/45209807900.pdfIn PDF document text
- http://xn--zb0bw3kv4s8mn.com/upload/fckeditor/file/91630955369.pdfIn PDF document text
- https://olterus.net/contents/files/11561157036.pdfIn PDF document text
- http://asupuro.com/upload/save_image/files/napojuzasidumisuji.pdfIn PDF document text
- http://qbcar.ru/ckfinder/userfiles/files/69798947487.pdfIn PDF document text
- http://ser-buk.com/userfiles/file/kasoxanufub.pdfIn PDF document text
- https://floridainvestment.cz/files/file/83776978865.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=general+physics+101+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d551.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD551 | 17048 bytes |
SHA-256: 2d8ad885f7052ac498b6545339ea78961ddee7693b6bcf108aaa3b6093b225d9 |
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font_01_sfnt_off0001016d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1016D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011984.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11984 | 10828 bytes |
SHA-256: 497c47db7aa8422613c82b7ab0f351b90e0a9f245b2021196e1c299d7e02517c |
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