MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or malware delivery lure. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely contains instructions to decrypt a password-protected archive, a common tactic to bypass gateway security. Numerous external URLs are present, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://laborke.ru/uplcv?utm_term=year+5+maths+test+papers+pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/j0o46oe00djhmscs7smnso7vr0/robefedenolasapo.pdf
- https://stallion-international.com/userfiles/file/5219477699.pdf
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a96894f7f---88454375590.pdf
- http://kaies.cn/upfiles/21070214204493926975md2x.pdf
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/cbe190451dbda8ef3a33bacfc47c78f2/rolalovuwupilurig.pdf
- http://romanakladatelstvi.cz/userfiles/file/jewogemiserunumaxa.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/129fb687dd7a2369c302afcba2b29636/4749364628.pdf
- https://geneolock.com/locktactyuma/userfiles/file/vewilozozinesupokofu.pdf
- https://mingyi-lock.com/data/file/userfiles/files/92004359448.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/4e4lus6qnf66bsgsg7rmqup6q2/40327303169.pdf
- http://ajtoablakcentrum.com/_user/file/65343071397.pdf
- https://cs168.tw/upfiles/editor/files/89197476247.pdf
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/152068456660a11c6c1407e.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d7156cd606f---rotekulisuju.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160739d21a0688---mawujoladuxe.pdf
- https://ddshower.com/ckfinder/userfiles/files/80035490019.pdf
- http://augustaelectricalwork.com/editorData/file/divogamogasasetutomomus.pdf
- http://posekatzahradu.cz/files/file/95464567542.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160805e475c35d---baxuvubebaderevaxopuxo.pdf
- http://abwfinlay.com/uploads/files/tokujixopuzobed.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be27992cd87---lijekukenifinazukewewibu.pdf
- http://apexnepaltravel.com/userfiles/file/kidizawo.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_off0000b9d4.bind439840ea3822201f0d3750788aed0f1cf78f6b7a4ca8d81e78c5a18441df0c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9D4 | 10520 bytes |
font_01_sfnt_off0000d1d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D7 | 16792 bytes |
font_02_sfnt_off0000e9e9.bin00a7c999f8a3f97186d57ce5f79c1978c16d3e5e6e57ffa8355efaf66821b4de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E9 | 16116 bytes |
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