MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised websites, likely intended to trick users into downloading a password-protected archive. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' strongly suggests this malicious intent. ClamAV also detected the file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0'.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://thieumaunao.vn/workspace/develop/uploads/ck_upload/files/48746075431.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b47d2751ff1---biwovog.pdf
- https://zivotzaokny.eu/res/file/sotivod.pdf
- http://computerdoki.hu/user/file/2517545197.pdf
- http://penzionklara.cz/userfiles/file/30238466898.pdf
- https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/3c31a875bde40cd48bdbe76fd808702a/67515331844.pdf
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/qijljtkfqqjbgvru54usq6k67s/53541934352.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607227c09b815---71647564174.pdf
- http://hugslock.com/app/webroot/img/files/vafipomonunozifazevola.pdf
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/5413e2aaff31b349f7f2423e2e53c6a6/7416530121.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073400556f9e---12297391459.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608439394321b---zipiruna.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607114e1144e7---50745842926.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080dd398fd91---67329283358.pdf
- https://kede.org/userfiles/file/vunujowekulizul.pdf
- http://magnumprint.ru/upload/files/40638421553.pdf
- http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/nalekalaxusika.pdf
- http://kirakuramenandsushi.com/uploads/files/xozadupeviba.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/0679b3b8dc09c4bd10c940c8615ba303/75856817470.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/g1l76bakdf44sqar2kltheu6po/78541903982.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/btasf02q35hemmnip8og3jskpa/44516439830.pdf
- http://zdravi-kromeriz.cz/files/file/55552097802.pdf
- https://hpsoft.shop/upload/files/73224738095.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=commercial+ar+stock
- 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_off0000f00e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF00E | 16792 bytes |
font_01_sfnt_off00010825.bind2e19a8222818180d07b180ebb204cc900a919d068db54f51ca746d321fcf8d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10825 | 10412 bytes |
font_02_sfnt_off00011fc3.bine986684d8c049b0ab450dd1b75c780b6b179bc7f213ab55ca65fd126d875c518 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FC3 | 17300 bytes |
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