MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to potentially compromised websites, including WordPress installations. One URL specifically mentions 'yalla ludo hack version apk download', suggesting a lure for users seeking game cheats or hacks, which is a common phishing tactic. The presence of embedded URLs and the nature of the link farm suggest an attempt to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 https://synerhu.ru/uplcv?utm_term=yalla+ludo+hack+version+apk+download
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134715bdb967---xerufeki.pdf
- http://www.gitialiganjlko.org/ckfinder/userfiles/files/32743909449.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613590689ca16---damakazogeloxem.pdf
- https://travellifeafrica.com/ci/userfiles/files/kesolejedamona.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/64b2bfa415324548cf46bdc638ea9b17/71866737972.pdf
- http://secretinvitation.net/images/files/90574154818.pdf
- http://chinasoftcore.com/userfiles/file///boxamakofugoxoninu.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/91ve57dviosdeg41222hjg5f0c/zuparonopagixa.pdf
- http://dynamicyunnan.com/ckfinder/userfiles/files/12894689795.pdf
- http://hunting.kg/userfiles/file/daxesuvorapigitixub.pdf
- http://hyunshin.net/userfiles/file/konozujitedawolota.pdf
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/45e2566ed3837587771f58bb8f64114c/lifutovolitujimaxin.pdf
- http://cosmik-kinoteatr.ru/sadm_files/55317786232.pdf
- https://vsevolozhsk.mebel18.com/uploads/files/70610836978.pdf
- http://rbtyutj01.com/userfiles/files/zetixixedu.pdf
- https://hatinhjobs.com/upload/files/nusolape.pdf
- http://ctmmaximoravenna.com/ckfinder/userfiles/files/diniduwoxalev.pdf
- http://bkdesign.ee/userfiles/file/fapudeguko.pdf
- https://macauroommate.com/ckfinder/userfiles/files/saruvusedowevefediv.pdf
- https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/70876844005.pdf
- http://dubilex.com/userfiles/files/pojidamebuzakuvabujutej.pdf
- https://www.ijmsir.com/ckfinder/userfiles/files/jekukokibokazerinil.pdf
- http://hujiangsy.com/upload/files/38817375550.pdf
- http://cl-pub.com/files/files/zofofi.pdf
- https://guruvinodji.com/Userfiles/file/muxeruporekolitalozewivug.pdf
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/21084152511.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_off0000c967.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC967 | 16792 bytes |
font_01_sfnt_off0000e179.bin95792cac22709f393507b1e375dfe9e31189e8c402f98232b6fcb8a6357207d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE179 | 18856 bytes |
font_02_sfnt_off0001129d.bin46ea014fa4b410a15654274d1953e68fcfa2b73bb82bb976bb4c682e33302771 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1129D | 10840 bytes |
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