MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely serve as a distribution mechanism for phishing or malware, leveraging the PDF as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/14cffd8d99f66a80cfb5e5c89bb28837/zutinamuforadogukanak.pdf
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ceccc3ef10---20498256433.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/f43d7f33ad665d7fce705a505c80093b/binupofaj.pdf
- http://geofer.eu/userfiles/files/8683461461.pdf
- http://prttour.ca/FileData/ckfinder/files/20210625_7F88763015C90D66.pdf
- http://barcabianca.eu/upload/file/96779996935.pdf
- https://eyetracking.pl/userfiles/file/29873447769.pdf
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b213b677233---diwitapavanuxij.pdf
- http://szentimresiklos.hu/upload/file/tabedebexebotajozo.pdf
- http://ldbell1965.net/clients/85689/File/48586246680.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/8a2ed162aa464248a931ba5bb576b633/80628713280.pdf
- http://cattaneoarchitetti.it/userfiles/files/32128239112.pdf
- http://nnrhc.com/clients/9/98/980d61ede38c9a35fe3396fb65651545/File/93120796464.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3e3578f9b---72026431560.pdf
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/d1b00e757550acf0e864f2f7425be0e6/xekiw.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/388609d132a92ab134f73c0bfa431a0e/21604195998.pdf
- http://limoride.net/gallery/file/menomarodokakugo.pdf
- https://ajwatravel.com/wheelmarine/userfiles/file/xufidurusisijipetaz.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=how+to+train+a+pitbull+to+sit
- 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_off0000eed1.bincf59d36d736a7d80a2d3d591513e7f3e856b68232a867c649944a0d19697f7d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED1 | 16784 bytes |
font_01_sfnt_off00011a76.bin1c5255f7a6e57cc6cacaaf006e2eb8ebf764bf29ef7f003c0d55bcac7c74e40b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A76 | 10428 bytes |
font_02_sfnt_off000131f6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131F6 | 16792 bytes |
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