MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to various PDF files hosted on potentially compromised websites, suggesting a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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 http://e-sportis.com/images/upload/489308522.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-6-12/20210612171322823775.pdf
- http://www.aportecnica.com/imagenes/editor/file/47170289389.pdf
- http://montaze.org/democms/userfiles/file/41593029823.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c9392e2888---senadomubokivibap.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099d76296bc9---kazowasazopelenom.pdf
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/272bf32c5f7a1923d06eaaba7280b9b9/81513258134.pdf
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb29b522ff2---zimagobokij.pdf
- http://shinies.ru/img/lib/file/sodugojezelex.pdf
- http://veraschwemmle.de/fckdata/file/wakakekirivoxudigibuniboj.pdf
- http://essiac.cz/UserFiles/file/sibepazaz.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d01e6e5b41e---memizipiwowogeguluri.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/totv39qnsm4kivmfgefqhf5bu3/52298302234.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea3345b5b9---5365531229.pdf
- http://saovietgroup.com/upload/FCK/file/30110101012.pdf
- http://verdantnorwich.com/clients/3/30/306756bb587dffcd11ca74610d845a16/File/vavikorodozavol.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1609455399d7b9---sugepijorivitaka.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072a94d4d6bc---44304143728.pdf
- http://canevinclassof70.com/clients/6/6b/6b8b8ee0d314e59372afbcb75100d768/File/71646323156.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082faa787466---gobatepufebewibadot.pdf
- http://mikomisushiwc.com/uploads/files/wiliwabemewamamopivap.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e3dedc506---55086260595.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/983d5ffd19bff2317bb9cae722c48ee9/kokedimumalobuje.pdf
- https://promobryansk.ru/userfiles/files/wunatasuvoxudap.pdf
- http://afgventuregroup.com/cfiles/file/92980949246.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=contraceptive+methods+for+women
- 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_off00010f0d.bin12af5055d6461d85b16daf53a82f4cb9bb11c3cf24a625d258e27309e0597508 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F0D | 11020 bytes |
font_01_sfnt_off00012897.bin00852ff7d07c4917c0d99f103e1bd5a8f3fa8a07d14cfd69472c4cb21526c4ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12897 | 17284 bytes |
font_02_sfnt_off000155bf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155BF | 16792 bytes |
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