MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic suggests a lure to download further content. Numerous external URLs are embedded, with one specifically flagged as a 'PDF_RANDOM_URL_LINK', pointing to a suspicious PDF file, likely a second-stage payload. The document body is heavily obfuscated and appears to be generated content rather than user-readable text.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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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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://infypos.com/infyposcms/media/73069899785.pdf
- http://fra2ange.it/userfiles/files/vivew.pdf
- http://gro-felix.si/uploads/kawijerezodenigudiviw.pdf
- https://texigo.tw/upfile/files/2021/09/05/gifapa.pdf
- http://appli-veolia.net/ckfinder/userfiles/files/mivivi.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130edc44d848---34376805021.pdf
- http://www.huntsvillepr.com/files/files/24568686018.pdf
- http://lawyersmarketingusa.com/user_upload_image/file/
- http://ty-universe.com/image/files/20210910_095042.pdf
- http://apicn.net/upload/files/jafizi.pdf
- https://ekselantechnology.solutions/ckfinder/userfiles/files/84376314958.pdf
- http://sovaimm.it/userfiles/files/30933560190.pdf
- https://fzclicks.com/demo/files/editor/file/2952843246.pdf
- https://www.tratedu.net/ssss2018/assets/143ad273/ckfinder/core/connector/php/upload/userfiles/files/e8f6f3b7c5ae713b27be1957c36def96.pdf
- https://eastmanllc.com/ckfinder/userfiles/files/mokurewaj.pdf
- http://ukonlinedirect.com/userfiles/files/73966907935.pdf
- https://artinterior.bg/userfiles/file/53108885463.pdf
- http://dungcucaytrong.com/images/files/46671638935.pdf
- https://lotteppta.net/beta/assets/file/84710416215.pdf
- https://jungleflightchiangmai.jungle-flight.com/Uploads/files/susowalilizat.pdf
- http://ambulatorioveterinariovianello.eu/userfiles/files/75693841521.pdf
- http://www.hzkontejnery.cz/ckfinder/userfiles/files/56553957563.pdf
- http://sushrutproctology.org/ckfinder/userfiles/files/96323197386.pdf
- http://bronnicy.inhome360.ru/admin/ckfinder/userfiles/files/vivaluzaxekojokev.pdf
- http://koddous.com/userfiles/file/vutoz.pdf
- http://offerparts.com/upload/files/56715524025.pdf
- http://jinistudy.com/_UploadFile/Images/file/9012329388.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=indoo+ki+jawani+full+movie+hd+online
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bbba.bind830af7e062e7d87f085c0c02b5db0865be9d84de0818877ab35ad4b1bb01937 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBBA | 16984 bytes |
font_01_sfnt_off0000e7a5.bin850d381465b5b269d8e2e75bffbf0c5d243b5dc05a9a5d72efe197d9f8d2dc5a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7A5 | 10680 bytes |
font_02_sfnt_off0000ffe8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE8 | 16792 bytes |
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