MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple domains, many of which are hosted on disposable infrastructure or compromised CMS uploads, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, and the document body was unreadable, but the heuristic findings are sufficient to assess the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9932
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://illinoislivestock.org/userfiles/file/woronexewuvawita.pdf
- https://addsfly.com/userfiles/file/33215125568.pdf
- http://geoscan.it/userfiles/files/86625991154.pdf
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/0c6e46e1d70d3e135f26ebe8c4150a5c/60518382419.pdf
- https://chmelo.hu/sites/default/files/file/43453655483.pdf
- http://roocenter.ru/upload/file/buzopem.pdf
- https://clifestyle.net/uploades/userfiles/file/nimajejemifamipegudobaner.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160770b1890513---taruzoka.pdf
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/4c3f5998af71465a4c8da81e4b33d14c/56057894803.pdf
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/9kv136vdr8jkdkuvg000cgunum/26665795997.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/237a1cf6c3d99fffd95e2358094f97d6/bunuxujujinaxakaxikudeje.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/kb6vnvok8r3pfcs4jnkb5mrlpo/nozebujaginulinijowusawed.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/b0onkcp6q4qo05j1rg0kpr72jk/bilomumo.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16091d8b71ee49---mikapidanubazoselavog.pdf
- https://10glazsikeyrosa.ru/file/mawaberilebabukonizum.pdf
- http://sjhrz.com/images/upload/File/54943738199.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f669a7837c---99003078913.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/dk80p0ia6d41ikmgjote5jcoup/topusiz.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/f783f649bea37352cb6d521094c6634f/fonopa.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/5af10caa01acf534020d5c6c26048a84/sukizawowukeferadunasuka.pdf
- http://www.urbanwaterways.info/files/89506574744.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=four+tailed+beast
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014a28.bin50325abb89a1d7959cf6abd46fc072231e1c1485c3e6ccaf68764e63c0bc0dbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A28 | 17108 bytes |
font_01_sfnt_off0001763e.bin1d664175f3973120ac9ba9c2b2671d87a41ead20f7d11c97eea6c86fe6f06389 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1763E | 18512 bytes |
font_02_sfnt_off0001ae73.bin77826555e4c99ea8c97fa3ae8ea41de4356928563bd2ca5ba68f0ee8779c3392 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AE73 | 10356 bytes |
font_03_sfnt_off0001c5ee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C5EE | 16792 bytes |
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