MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The file contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of urgency lures further supports a phishing or scamming intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://ketchas.ru/uplcv?utm_term=this+that+these+those+questions+and+answers
- http://qca.ch/userfiles/file/sitelupowukage.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/sfvf49eteg7v5jq9g73njbr0pe/witazukow.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b8fafb873b9---likapoxolevizakun.pdf
- http://mikailang.net/userfiles/file/20210502181922_1323312875.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074471a50826---pojojopatujosaribedosore.pdf
- https://egokituz.eus/files/galeria/files/bubazutigibe.pdf
- http://bpsstudio.hu/uploads/goguvuxapotevajupe.pdf
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/f3d11f558b9a09fe2e4e9cedd45d5a5b/45182984923.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/86ed73ef259b490179cc55d7a7e0024c/fatoxubavog.pdf
- https://gyn-koe70.de/obrazky/file/rebipeb.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/3svluen8rn8lkmtc08ptfn8uhg/kimebo.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3e4abde58---majofenipubijamorodirek.pdf
- http://wernitznigg.at/files/95694257643.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb18325e706---38914630218.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6e1f1d195d---nexasobarewiwoxabaxexilo.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/617b7e4s7ops87vh8v6akjqpn5/11838693578.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/968e1fc480ebbab04877c17e7293d315/81589954257.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/260fbc7e90d217b599cb1b30cdb46f0f/mopirolemotejinoxuge.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160864937d2f7f---15705769230.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16070ef1fdc5e5---xonokasuwizi.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce6ec75b4b---vodifatijikixuv.pdf
- http://fdceta02.fr/catalogue_dynamique/file/sopuwamatewivisotororinud.pdf
- https://soudurelauziere.com/upload/editor/file/diwigipusobex.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_off0000f9fe.bin7f4c9d682ac618e6694edba01f6559195fa8b4b602cc15d9c22e057dbb9dcd52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9FE | 17288 bytes |
font_01_sfnt_off00012744.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12744 | 16792 bytes |
font_02_sfnt_off00013f5b.bin310c35de68ed2fc3c16ea2f90524956b902c27446db65f7bb7c1ab038f80667a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F5B | 10596 bytes |
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