MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and compromised CMS upload links indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 https://inwebjor.ru/uplcv?utm_term=pre+algebra+tests+and+answers
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/s3eic8vjm388mefep97rtqd8t1/fefimuxuzuguvuzomakudukav.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608a06b699df2---82672107188.pdf
- https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/da919055828e98003a399a971f0b923f/riteziwixumor.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/a05c3f725065d283ecbe99da258ecac0/11416712280.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cfa3b7fe35---5468332845.pdf
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/ac61e05c9121579c852d7c8913171e4c/77678835130.pdf
- http://alpha-th.com/userfiles/file/24602810394.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/c1fffbfb650c27de9041f6d6d4e03067/598343443.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/910a4btk9tri9u7nuo2ovgnb40/85661229726.pdf
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/4430f25d18f572477659cf1ddd9aa555/73578309904.pdf
- http://connect-senior.ch/uploades/userfiles/file/doremob.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1b94bc624---kikuzejolug.pdf
- http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/jifimuzego.pdf
- http://cementfeet.com/userfiles/file/pojat.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607734116e1c6---teropojadoz.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/3glk9i6o47i1vad2v1c4na650a/bajowolopoxepamidoli.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160989445b15a6---29304667384.pdf
- http://aclamerica.com/customers/CMS-IMAGES/file/90049545763.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/db9470d7703ba070665bfb643ea6da4f/92414945155.pdf
- http://xn--dlek-5qa.com/admin/UserFiles/file/tepawukibes.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/ff931bd83a1e1ebc00e6b91104ef50f5/89248074574.pdf
- http://dogalakustik.com/depo/sayfaresim/file/tejuzolepupux.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_off0000d958.bin7c99198f7a0eb597c157818d52234adac398544e557284c69305ce055fb9d385 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD958 | 16952 bytes |
font_01_sfnt_off000105a2.bin23870b7eb98f192a6249e8c98285cb692fc93c40346ff5c5924ba715589980c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105A2 | 10440 bytes |
font_02_sfnt_off00011d48.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D48 | 16792 bytes |
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