MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the extensive use of external links points to an attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://pistant.ru/uplcv?utm_term=que+son+los+costos+semifijos+y+semivariables
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160a017a67101b---62717352140.pdf
- http://webmba.fr/client/logo/file/71681214462.pdf
- http://dhsclassof70.com/clients/d/d1/d13f49183e6b2ef720c1f353b43de0f2/File/jedakazojapevowegazis.pdf
- http://noithatdangcap.vn/app/webroot/uploads/files/megajijoveguw.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbad640b46---347806587.pdf
- https://adian.eus/files/galeria/files/kipudosimatujune.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/4mjm5bm68emrsu76lh6gerdtsa/54203387955.pdf
- http://townofwinslowin.com/flash/townofwinslowin.com/file/64572772511.pdf
- http://originalbau.hu/imagesfiles/mofojamupilegug.pdf
- http://fecoil.com/userfiles/file/bufuwuvamiwemabikivopuj.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c50c324b99---84183515772.pdf
- http://creativeindustries.ru/uploads/userfiles/file/6212151316.pdf
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/es4fdr8psfhnod6htcaoma8f2g/35454392080.pdf
- http://immodraft.nrw/images/architekten_agentur_images_/file/faponigivesoginamujasone.pdf
- http://kfnmdg.com/upfolder/e/files/20210609193416.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160f3991558111---lebowuzerajomuladuvew.pdf
- http://ipllaser.in/uploads/42337594179.pdf
- https://stratasphere.online/userfiles/file/vumuxuxe.pdf
- http://luatsubienhoa.com/upload/ck/files/japijubamofovej.pdf
- http://cs-golfclub.com/ckupload/files/xulevab.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609905fe9d8f7---zodarafawepidove.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16086eae09d5dd---70327136230.pdf
- http://www.aadhar-interior.com/userfiles/file/42226460397.pdf
- http://arci-mp.fr/admin/File/28183150546.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_off00012281.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12281 | 16792 bytes |
font_01_sfnt_off00013a98.bin121633d106dd42ad0a0e08e62face048e6c57da507e1f1f6bd1f0e800b340226 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A98 | 11108 bytes |
font_02_sfnt_off00015499.binb94c46cc37ffb1a68239638f69f10da11346b1b76ed59abb5311a1e975812794 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15499 | 18740 bytes |
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