MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1553.005 Mark-of-the-Web Bypass
The PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The heuristic 'SE_SECURITY_BYPASS' suggests the document instructs users to disable security software, a common tactic for phishing or malware delivery. While no scripts were extracted, the presence of numerous embedded URLs and the overall detection profile point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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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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 http://ubestsports.com/imager/files/20210904150322.pdf In PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/f1bba6389670b6d0d9904d2d477457b7/16475943539.pdfIn PDF document text
- http://minhledtran.com/luutru/files/ruribivaxeti.pdfIn PDF document text
- http://maudchristan.nl/ckfinder/userfiles/files/16355770969.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/bcefa29d869c66aa4eaf0bc3f6400b94/wedokipivuwimebuvakozijav.pdfIn PDF document text
- http://manilag.com/FileData/ckfinder/files/20210903_6033E3F5B7A1BF08.pdfIn PDF document text
- https://comtraining.cl/userfiles/files/fezolulu.pdfIn PDF document text
- https://goldenlinejsc.com/userfiles/file/44217669299.pdfIn PDF document text
- https://www.campacinter.com/image/upload/File/rejiwinoleferejelifan.pdfIn PDF document text
- http://phuvuongcorp.com/luutru/files/12870534253.pdfIn PDF document text
- http://dayuntang.com/assets/uploads/ckedit/files/20210905064358.pdfIn PDF document text
- https://hobbes-group.com/upload/files/8792597344.pdfIn PDF document text
- http://kredoteka.ru/uploads/file/89309966239.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/28309722235.pdfIn PDF document text
- https://qnzar.com/files/mijumu.pdfIn PDF document text
- http://iviltra.lt/images/files/ninofadozadalazasim.pdfIn PDF document text
- https://408of53crownstreet.com/assets/media/files/80031506111.pdfIn PDF document text
- http://mxm-hosting.nl/img/editor/file/53926766005.pdfIn PDF document text
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/7576862449.pdfIn PDF document text
- http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/debegejakefotudikejurusuv.pdfIn PDF document text
- http://guowangcable.com/d/files/kuludelukelodod.pdfIn PDF document text
- https://mondoaudio.it/img/uploaded/file/65174318868.pdfIn PDF document text
- https://behbehaniprojects.com/uploads/files/25786105918.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+to+play+morrowind+on+androidPDF 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_off0000e01c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE01C | 20556 bytes |
SHA-256: dca277f217047c9102137348045ce8e78399d95f7aaa6d23a3e1f583b6578d8e |
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font_01_sfnt_off00011585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11585 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D9C | 10444 bytes |
SHA-256: d541681126a5ef91b40b04daafd59121b8a21341dd4a221842a10272c6a8a077 |
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