MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of numerous external URIs, including one with a 'utm_term' parameter suggesting tracking, points towards a phishing or credential harvesting campaign. The heuristic 'SE_URGENCY_LURE' further supports this by indicating the document likely contains urgent language to prompt user interaction.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://wastran.ru/uplcv?utm_term=go+tool+apk PDF link annotation
- https://osikovo.eu/webroot/img/content/files/52548753907.pdfIn PDF document text
- https://biroestarsa.hu/uploads/file/49767837788.pdfIn PDF document text
- https://imagebeaute.fr/userfiles/file/80335387900.pdfIn PDF document text
- http://nowator-zpu.pl/userfiles/file/xanekurizoxe.pdfIn PDF document text
- http://golden-candies.ru/webroot/files/files/14502549326.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f41c190fd1---nenesodimibar.pdfIn PDF document text
- http://dcbestwings.com/uploads/files/mugorumiribumo.pdfIn PDF document text
- https://zoomkish.com/basefile/zoomkishcom/files/tekimeduwikojaxanugakadup.pdfIn PDF document text
- http://hkbroadwin.com/userfiles/pijew.pdfIn PDF document text
- http://emachn.com/data/attachment/file/62621717185.pdfIn PDF document text
- https://hunglivet.com/uploads/files/202109091534053228.pdfIn PDF document text
- http://beergolfers.com/blog/images/file/89841411244.pdfIn PDF document text
- http://4els.ru/uploads/images/files/55186497996.pdfIn PDF document text
- http://bangkokmagnetwire.com/ecodev_test/image_system/files/bilunovanurupabifunuviso.pdfIn PDF document text
- https://zevkotodoseme.com/upload/ckfinder/files/87525800669.pdfIn PDF document text
- https://portugaliaimagyarok.com/ckfinder/userfiles/files/winukumafi.pdfIn PDF document text
- https://huuphongplastic.vn/uploads/images/files/wunomepalazujoxolatijaja.pdfIn PDF document text
- https://khotelmarket.com/FileData/ckfinder/files/20210902_1E7B975776C9CB4C.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/9mncvd809s10h35v89bt4utd9k/magasupebepobutokefolav.pdfIn PDF document text
- http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/21569229996.pdfIn PDF document text
- http://colantuono.it/userfiles/files/dozazavezuxalimexel.pdfIn PDF document text
- http://vinhthuan.vn/upload/files/domebines.pdfIn PDF document text
- http://faradbox.pl/files/file/senadikuguwawexutalik.pdfIn PDF document text
- http://livelyway.com/ckfinder/userfiles/files/38192219585.pdfIn PDF document text
- 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_off0000dbb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB3 | 9780 bytes |
SHA-256: b7fcc7be707317f11df7be47481d63863859b26c42cbdcbdfe404571533a0390 |
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font_01_sfnt_off0000f148.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF148 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001095a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1095A | 17816 bytes |
SHA-256: 031c022aa7ab635089a5e5fff5b5bf204cf86f53adb1a2e0de3499883a0943e8 |
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