MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and external URIs, indicating malicious intent. The heuristic 'SE_CALLBACK_LURE' strongly suggests a callback phishing or tech-support scam pattern, where the document prompts the user to call a phone number. The presence of embedded JavaScript further supports the malicious nature of the document, likely used to facilitate the scam or download additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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://laborke.ru/uplcv?utm_term=adb+reboot+download PDF link annotation
- http://jolanyee.com/upload/files/202109140203286956.pdfIn PDF document text
- https://stpatswatertown.org/ckfinder/userfiles/files/1032290166.pdfIn PDF document text
- http://chingyi.tw/userfiles/files/wawes.pdfIn PDF document text
- http://benedictinoselrosal.org/ckfinder/userfiles/files/71503894213.pdfIn PDF document text
- https://mkontroll.hu/File/zuneniwumalefovez.pdfIn PDF document text
- http://abwplazaview.com/uploads/files/topujolevuk.pdfIn PDF document text
- http://www.pethouse.es/ckfinder/userfiles/files/kizumevusuzam.pdfIn PDF document text
- http://stonepigments.com/userfiles/file/towesetowakojemumif.pdfIn PDF document text
- http://xinshifm.com/userfiles/file/pajitavegupidomasegeb.pdfIn PDF document text
- https://pcetravel.com/files/file/37163591628.pdfIn PDF document text
- http://to-kajihan.net/js/upload/files/wuwesujima.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/rmi4prufsjbigetf5jmgal1osh/96499499592.pdfIn PDF document text
- http://grafiport.com/userfiles/file/pozitogokugumasotuwo.pdfIn PDF document text
- http://antifftech.com/uploadfile/file///2021090916294028.pdfIn PDF document text
- http://wenyanchem.com/upload/files/kibasawotabarog.pdfIn PDF document text
- http://bigcool.net/webroot/img/files/36794572533.pdfIn PDF document text
- http://fgsconsulta.com.br/ckfinder/uploads/userfiles/files/99273237108.pdfIn PDF document text
- https://plagij.at/ckfinder/userfiles/files/fitel.pdfIn PDF document text
- http://awarelaxcentrum.cz/user_files/file/22759717895.pdfIn PDF document text
- https://livres-d-art.com/ckfinder/userfiles/files/jideramozudupedibaji.pdfIn PDF document text
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/kamanop.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4870a6071---38359342680.pdfIn PDF document text
- http://irodori.kir.jp/files/file/54168139970.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_off0000d88a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD88A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f0a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A1 | 10188 bytes |
SHA-256: 78b4f1ff26af7c14dcdc9cfff5f2fbe9d0d4ea1ca2538662bbbdaf41c6fd60b5 |
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font_02_sfnt_off0001079b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079B | 16884 bytes |
SHA-256: f86399aeb3f35a1d2958294acf2464a1c3009127852274e55c5e95ddd55bf9a3 |
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