MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised CMS upload storage and disposable hosting, suggesting a phishing or malware distribution scheme. The document body is unreadable, but the presence of many external links indicates an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 https://nomylo.ru/uplcv?utm_term=places+ending+with+z
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160c4366da2c33---posapegowut.pdf
- https://nezrenpin.com/calisma2/files/uploads/jomipededisibusamaza.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a874f7ecada---kavemasafixeloxasama.pdf
- http://fsoa.cn/userfiles/file/kunenusidululet.pdf
- http://asea-admin.com/_userfiles/file/20210605041601.pdf
- https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9b2c8ca6b---gigamesalimolopegosiwix.pdf
- https://houstoncoinshow.org/FCKeditor/file/tibuvadoruturitezojefar.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073aac8ed5d3---nezuxudubetuv.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bf881150d4e---56665597614.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0911982043---bonerugep.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/87764352347.pdf
- http://hanleyresources.com/images/75178496350.pdf
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/4453bd8dbf186d03edc5d8107bee9d7a/17434844509.pdf
- http://bpabv.nl/uploadfiles/file/8782273167.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3a6b3f13ec---32513579649.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/566d8f40392019694c51971b1e1e560e/nifomekaguxasadikafenivi.pdf
- http://haisushitogo.com/uploads/files/jenalajoxawumezegimipisar.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/eruao8gauo0jpm50ssb2a6o575/99191651886.pdf
- http://www.pzkexie.com/up_files/file/feturaburewuselodat.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea3e220d1e---jakodolonodekakumon.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16074777b82332---35662686466.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b31f2e5c335---48852836104.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_off00014dad.binafc6b8b1f7611e73bae097e53e17b6481f41dd624adf9baab13c0bd9f3921bb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DAD | 10576 bytes |
font_01_sfnt_off0001659b.bin0ec0209756d54e1a1f45d398a4157526d74f68ad009c1f42167f0724ec1a606d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1659B | 23520 bytes |
font_02_sfnt_off0001a045.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A045 | 16792 bytes |
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