MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress sites and other disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are likely used to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://bmhs71.com/clients/c/c9/c97ff408e01126d63256cf68004d6641/File/nunapugubigidebej.pdf
- http://diysmart.net/userfiles/file/dekomiju.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae9c2f111f---pixovonivenumu.pdf
- http://allasclub.com/campannas/file/5862833923.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a176196002c---80148626323.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/13be86f1a3eefcf729f24fd472254d9c/xadolemowisik.pdf
- https://actor-conseil.com/files/file/76317066660.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c71babf2a1---56179866873.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/29n9st1ablhe0aim917r5n0j63/51664545382.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d8ca66bfde8---xalefajove.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/4tpf6r01pr17b5l5nd94loks70/mavumezojolowules.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c90a9ccb6ec---liganal.pdf
- http://akinmedical.com/uploads/file/napusagiw.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160724e56c47cf---japipesovexefizum.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a189685873---88734868005.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16076a03901b8d---vorotusem.pdf
- https://alternativecarrepair.com/userfiles/file/54523249129.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/0f62c2618acccffa85e6788c8df6b819/62722395878.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/9bffa2e832f045a80268a18eabd43b8e/vitaf.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a5ed77d3f---26953844065.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=leukopenia+viral+infection
- 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_off0000ee1e.bin09a91ece5cbd5d332eb96e7a936d6a278a29879863a09ebccf20e0371d0b0d73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE1E | 10520 bytes |
font_01_sfnt_off0001063d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1063D | 16792 bytes |
font_02_sfnt_off00011e4f.bin5646bf9c68766f109b5057983e4e010bb58d96700c898d23e67cf4483246dc86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E4F | 18308 bytes |
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