MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites hosted on disposable domains and potentially compromised CMS uploads. The embedded URLs suggest a phishing or malware distribution vector, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://targdenunti.ro/userfiles/file/jupofofifepiliwo.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb57d558c6---tovagotezodurobu.pdf
- http://redigonda.it/userfiles/files/36615672887.pdf
- http://kameleonhastanc.hu/files/file/desulunirizip.pdf
- http://homeopathyhongkong.org/files/97905004379.pdf
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a34968a31b0---87320289860.pdf
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/4c3d5ae58de824cf035e5893063e3e85/sijojijox.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071c03564da0---99567797025.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090d5ab41214---gazedudixigomugoxo.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c58b0d572---takafa.pdf
- http://cropscipublisher.com/files/upfiles/file/8308424070.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/ld1u3h7e3l04nu2e062v5hs9t7/borupazegadejesuvol.pdf
- http://robwalker.net/fckupload/file/33580931360.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608366b2d8c94---45806863669.pdf
- http://qhs1978.com/clients/d/dd/dd8db5a278a7ad55a2ada34b8e38ebcc/File/zasejojilekabivesuxot.pdf
- http://droprint.my/home/ququ4923/public_html/userfiles/file/56361542164.pdf
- http://vincitydata.com/uploads/ckfinder/files/nebigemiribedadadupuk.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a499f14637a---92265230401.pdf
- https://samavetpharm.com/userfiles/files/44318679633.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1dbd72987---96694389942.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d288779ab30---6661566636.pdf
- http://barcelonasixtytwo.com/userfiles/file/78833864627.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/6b7ad3a789202a0f4c50d74c9aa9c909/midizuwurujejozuzi.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f01cdd00f---gerawenuzalik.pdf
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/didh0h2s7vpb6bd9bpbb6a14mo/62614003137.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=air+force+special+investigations+officer
- 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_off0000f0d8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D8 | 16792 bytes |
font_01_sfnt_off000108ef.bin7fa38bd29f54b6eab99742733637dae7a99c206269c0f895a43576ba639205fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108EF | 10700 bytes |
font_02_sfnt_off000121a9.bindf010657f327c2183e3d3194a15fc74cd4fd7cd3872ae36637ce4ec117f768f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121A9 | 16580 bytes |
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