MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Several heuristics indicate the PDF contains a link farm pointing to compromised WordPress upload storage, suggesting an attempt to distribute malicious content or phish users. The embedded URLs, while numerous, do not provide a clear single destination, but the overall pattern suggests a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d383e3b9ef---fekorovifepikomire.pdf In PDF document text
- http://nocleginaplus.pl/uploads/userfiles/files/wimawit.pdfIn PDF document text
- http://jjkxmy.com/upload/files/202109060305326942.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/da1674a5ec3120ce178061e0aa6a0979/xozajiwofojuso.pdfIn PDF document text
- https://landtop.com/filespath/files/20210912041032.pdfIn PDF document text
- http://lovelyspa.net/ckfinder/userfiles/files/nefogutijozuxerelevikodo.pdfIn PDF document text
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/bigiwexekalusezigunakume.pdfIn PDF document text
- http://fohow77.ru/upload/file/fiwutalikijufoguv.pdfIn PDF document text
- http://vietsinphar.com/uploads/files/fuwuzopesifanof.pdfIn PDF document text
- https://stradatextiles.com/upload/ckfinder/files/79116039960.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2167820a9---rusiwesodujeke.pdfIn PDF document text
- https://toolsatool.com/userfiles/files/41246851376.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1612f365bc1489---12639305791.pdfIn PDF document text
- http://dekobonner.de/userfiles/file/zuzifajef.pdfIn PDF document text
- https://ijaetis.org/ckfinder/userfiles/files/15994343409.pdfIn PDF document text
- http://patanamachine.com/imgUpload/files/11447396291.pdfIn PDF document text
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210912140329.pdfIn PDF document text
- http://www.scsk12.org/policy/files/files/gegaforiposenir.pdfIn PDF document text
- http://elijasprojekts.lv/files/file/xafutisamazugifiw.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/10678378220.pdfIn PDF document text
- http://przystaneknida.pl/data/aktualnosci_imgs/file/gupemumizujovuzebigot.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161434ab93f728---lebunak.pdfIn PDF document text
- http://realtor-madrid.com/uploades/fckeditorfile/29108270787.pdfIn PDF document text
- https://celebicatering.com/upload/ckfinder/files/zerazazisigotejemogu.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16145bac44febe---60458851917.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=flash+sms+sender+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e18b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE18B | 17636 bytes |
SHA-256: 092acc076076312a4603e0c577a4dd6bce6f3f03e8f74dd6892c184a9f56d7e0 |
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font_01_sfnt_off00010fc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FC9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127E0 | 10416 bytes |
SHA-256: 462707d9b07a37ad0eb9b2e072b5732c6caaeb545adb24857464360f0375ed5e |
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