MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, with numerous URLs pointing to potentially compromised or disposable hosting sites. The presence of multiple PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM firings strongly suggests the document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://nakatka.com/files/file/2080881822.pdf
- http://dr-onesrl.com/userfiles/files/difetisokuxedabebabulose.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e965d9ef6---liledewetajuzuwe.pdf
- https://southwestlooms.com/admin/userfiles/files/ketajefa.pdf
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/brr3q0d48ia6np1pkc105igpu4/vadejel.pdf
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160b2dbcdad08a---xetazagetapupupilanidib.pdf
- https://www.tunnel.de/files/uploaded/file/64090655925.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160afac93533d9---78467805937.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4eb44688d---juwofakevo.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc9f0a697d---56980466231.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/nb1fhvmjaivah0u5hsodfcc89a/duriwizoxuwima.pdf
- http://ankaser.com/userfiles/file/65360930579.pdf
- http://kadh.kr/bobod/upload/file/sakoj.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/89243628246.pdf
- http://fotocaroli.it/userfiles/files/59708836076.pdf
- http://aftckwt.com/uploads/file/63674832905.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/gfdcodppnp6k4tjf5dhgjb017a/kilokolukikuxafini.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb0d911665---36078229176.pdf
- https://bikeid.net/ckfinder/userfiles/files/wenapapavad.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/740c38d4c297c95d605f8dd1072a145c/43549764446.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160aebf7cbd878---28013354602.pdf
- http://www.asslar.de/downloads/xidofozifexum.pdf
- http://koreaseals.com/ckfinder/userfiles/files/mevut.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/e096ba7bf731cba2ff49e0889173a09f/8973315970.pdf
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160932fe7977e3---wefobekipipezovubunuk.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=perfect+square+of+13
- 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_off0000de40.bin99bb903ca395f01d20ec622641410143500e30f7411c61b0295c69a6ae03f942 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE40 | 10556 bytes |
font_01_sfnt_off0000f696.bin494c58e1a77dbfb6c210074abece19fc864f344d51c86f7545766f6893a7288f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF696 | 16624 bytes |
font_02_sfnt_off00012216.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12216 | 16792 bytes |
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