MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised WordPress upload storage, suggesting it functions as a link farm designed to redirect users to potentially harmful sites. The presence of multiple distinct hosts and the use of UTM parameters further support a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://nomylo.ru/uplcv?utm_term=acid+strength+and+electronegativity
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa7e770088---74259110475.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d9852ea5c---15404141843.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609954ff66145---tagerexusikutawemedugo.pdf
- https://alamansyria.com/userfiles/file/vosevasozije.pdf
- http://doubletroubels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607467103f353---dopixuzovurariv.pdf
- https://sinhadventure.com/uploads/file/tidepidijati.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607966824daa0---35609684347.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/2b6d6dab35d6205ac0b59bfee8d8afa5/26228950063.pdf
- http://ukrainski-rosyjski.pl/userfiles/file/20116960179.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/hmr1vir3cnvkdg6mg1i2n1hn4h/xorokuriribuxemabok.pdf
- https://advance-pack.com/editor_upload/file/tuzafavenikadi.pdf
- http://anhuizpyy.com/upload_fck/file/2021-4-30/20210430094559652453.pdf
- https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/munupapixakenugebo.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a91231d90e---bisulugadunuwelan.pdf
- https://pharmnet.cz/ckfiles/files/files/41385192629.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8fa48cb82c---55050745791.pdf
- http://train-in-japan.com/images/blog//file/fokiwetobupugabu.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ei1327rsgpt5pmpgac80gub786/33077979229.pdf
- https://bouveau-consulting.com/userfiles/file/foxobamosijegonufaritu.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a44e4cd809---1323419036.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/ujrkv2lfvteggnqcn0g974m0rg/99105598006.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/ecvh73iogm10nqvqe30aomb5f6/kajaropa.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160760b309f6c6---pifofoserozol.pdf
- http://asbazainville.org/userfiles/file/kegikurajusidolu.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a707e634e58---59877212838.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_off0000e6a8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6A8 | 16792 bytes |
font_01_sfnt_off0000febf.bin42b1be309416a64227bdc358acffd4d78332bd6609c901541b1d3e046ffa26ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEBF | 10812 bytes |
font_02_sfnt_off00011772.bin006f5b6250e248e0cd9964e95a3852087b46ca9b21d15db74d5e9c20d4de5ee0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11772 | 16860 bytes |
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