MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. The presence of a 'Password-protected archive handoff' heuristic indicates the document likely instructs the user to open an encrypted archive, a common tactic to bypass gateway security. The numerous extracted URLs, many hosted on compromised WordPress sites, suggest a link farm designed to redirect users to malicious content or download further stages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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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://spherule.org/wp-content/plugins/super-forms/uploads/php/files/ebd50746dedea2436669d1d1ca3fa4d7/33460120806.pdf
- http://tgtech-auto.com/userfiles/file/vitiriluxoxepudet.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/62c0abd8536188bbf8c136258e16d521/kafepopif.pdf
- http://xaydungphongphu.com/uploads/files/julutijutopete.pdf
- http://195exim.com/datas/files/lakujixepo.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/a7e1ec349dbe6e853fe9042bdf9e6eda/70705668043.pdf
- http://klpa.net/userData/board/file/xegoxabowuwugotesa.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070523ae0b6d---nexapizujamew.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099cbe41d8d2---repepasogurujevik.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/o1kbrcavdiihv2l8q6f3ct6gl4/deduzutif.pdf
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/c95bb8da71a4c37b0526576e3a37aa3c/87648198659.pdf
- https://cdmsig.com/ckfinder/userfiles/files/46129448341.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/lik5q63o044e81vapm5u6fjl26/texupemojisosirugawufiruz.pdf
- https://alshaabcoop.com/userfiles/file/mikoromidoneborosemit.pdf
- http://auapp.ch/userfiles/files/34882714147.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9a13cd0671---fuvuwikufafewujax.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/ba4058981b281cf0faf2308314a5b4b0/146601892.pdf
- https://tlproduct.com/userfiles/file/vofupuwuwufuwewonijabufo.pdf
- https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607272f38fc34---gokitifobanezojuwegaxep.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/5de82f8177ceddf061cee3b3e47e3ab9/kokabuborutofedobojelu.pdf
- http://asbazainville.org/userfiles/file/birokumukobure.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ecca5c7f3---93026895623.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160999c2dec01a---40246504402.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=how+to+open+a+pdf+that+is+password+protected
- 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_off0000f884.binb3e3016139e3df4a89b66753149fc08ea8b676a3fd416c04a96fbf59dabe652a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF884 | 10748 bytes |
font_01_sfnt_off00011135.bin919376ff8a9382ab4ac236ee25182ea7f0786fbda68ed36e5e457f7ca67ec577 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11135 | 17868 bytes |
font_02_sfnt_off00013fb6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FB6 | 16792 bytes |
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