MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to various URLs hosted on potentially compromised or disposable domains, which is a common tactic for phishing or malware distribution. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. The document body is heavily obfuscated and unreadable, providing no direct clues to its specific purpose beyond the heuristic findings.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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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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://autowassenindex.nl/images/uploads/35987763882.pdf
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/8mshmmlgqkbu99c8vk7oh1n114/xomisonarubebu.pdf
- http://aliceinformaticasrl.com/user/pages/nelenazomasu.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160844b0ad0144---gexomi.pdf
- http://inannamsao.com/uploads/files/koborakevomivusare.pdf
- http://sklepjola.pl/userfiles/file/40163011474.pdf
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/i7cs2avnhdnfnpd8lg8fhc05o7/47757969085.pdf
- https://dm288.com/slicice/file/43600716603.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160be3d382ef71---50078506736.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/010fc23b664e9674332b12505fb74101/59580488457.pdf
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/ee6fa45ec914861c79502388eabb324e/68487060832.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d944c87cb3---56977268423.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b006cb8a4b---loxenuzevazomak.pdf
- http://pappteam.hu/userfiles/file/81043794543.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2b23da0038---91174332051.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/b9adv6lc5hle7p25j75l6vdmoc/51991342231.pdf
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/1248309670.pdf
- http://xn--m1age8bh.xn--p1ai/files/file/94579013242.pdf
- http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/5393875399.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d943dcf4e6---39367222655.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/ipa0fp3n770evpv43b6qhpbeu7/36174801847.pdf
- http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/ab596abd872c717ca873c6f135fad84f/40102231511.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9cf5d1c35a---19580597650.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=download+stickman+football+2018+mod+apk
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/fd2fe50f84889d62d178262fdd33ff12/bawade.pdf
- 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_off0000f579.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF579 | 16792 bytes |
font_01_sfnt_off00010d8b.bin5f14dd6cd478712684dc45171e48ac5e7fa2bec3957d5fc1c94e0bb5baf77be8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8B | 17184 bytes |
font_02_sfnt_off00013a9e.bin381543bcee6076d20aab90b43e1f55e30e33d40195caa01db5c9c30dd7ed0f7c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A9E | 11372 bytes |
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