MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and other disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, indicating an attempt to hide its true purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://soudurelauziere.com/upload/editor/file/vukufuzonelazinexazo.pdf
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/aca41926b09150ad23f1a0cc9c87315e/70858452124.pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/e23334b214f03a4a948052fac4bbe961/nilupivadal.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160724ace37272---88073192612.pdf
- http://txextremecarts.com/userfiles/file/24919678535.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02f476bbe0---rinebufile.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/vfuukfvn5o6oqe868eovt7194k/24276083927.pdf
- http://bright-mineral.com/uploadfile/file/2021052916520389.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/4vrrmck6k2g2v49jekcr60khkf/24259111304.pdf
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/3d25b55d8e303d4b60857e98156b75d9/14882807398.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb4ef92594e---90371854596.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/def740fc18359782e6d7a7431deb88d6/gapekiwik.pdf
- https://zoldlepes.hu/userfiles/file/73105897242.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/70b95f221e801c3977b73c266bbe6433/dotivosobagirebevudavav.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/bivetivuzusixevij.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/6a03d6ed0308fba0ca1effcef6b86ea5/togibew.pdf
- http://wsm.hk/images/uploadfiles/file/52084417801.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160774155130ea---pawilizegixijabuwogida.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609abc13e0784---mapudojujekewurakaz.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-6-23/20210623202940964786.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160781d21171fb---4660747033.pdf
- http://cityhelps.org/clients/6/61/61afa7a028a8e04f14432b0fece6f2b0/File/wimoboje.pdf
- http://siembra.me/uploads/files/fevukofogidamu.pdf
- https://aslimitada.com/userfiles/file/gitumabalodaparago.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=lewis+structure+for+h3po4
- 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_off0000f4df.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4DF | 16792 bytes |
font_01_sfnt_off00010cf6.bine51c17962c5bb9e6bf60655a7e2c97daa57cf9971fb1bef299ce1d3d4bfcfe9d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CF6 | 10656 bytes |
font_02_sfnt_off000125b1.bin09fbf608ed8e9cc2457d8fe8193c7cd61a3d1b90a34cc895629700c5eda2f1b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125B1 | 17756 bytes |
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