MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs pointing to compromised or disposable domains, indicating a link farm designed to lure users to potentially malicious content. The heuristic firings related to PDF link farms and compromised CMS uploads strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9871
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://krisoc.ru/uplcv?utm_term=family+household+chores PDF link annotation
- http://travelcenterpuntos.com/campannas/file/36017874860.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef66973074---pikid.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/pexunobikasiroxapux.pdfIn PDF document text
- http://leinerpakgelatine.com/survey/userfiles/files/dixuxinijabuwigudeda.pdfIn PDF document text
- http://e5tbr2.alruaa.com/ckeditor-ckfinder-integration/uploads/files/1034940651.pdfIn PDF document text
- https://rugsinc.in/UserFiles/files/6786703089.pdfIn PDF document text
- http://highlevel.pl/userfiles/file/50695727209.pdfIn PDF document text
- http://mirutte.com/newsfiles/files/jurizinirigakifere.pdfIn PDF document text
- https://ceccargiurgiu.ro/userfiles/file/96936273554.pdfIn PDF document text
- http://trunghungplastic.com/luutru/files/dotosodomonujari.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/351e9263f8c7381d9dcc27634048e0b6/37929225504.pdfIn PDF document text
- http://bk-plus.at/userfiles/files/85882438516.pdfIn PDF document text
- https://minhvuongthuphap.com/upload/ck/files/mesegokorixisaduf.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210913080411782.pdfIn PDF document text
- http://studiolegalebisantis.it/userfiles/files/sekekupowukoxupadu.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021091717045666.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1615be2f7cb824---woguxet.pdfIn PDF document text
- https://theelementrama9.com/userfiles/files/javowukugasexenedewu.pdfIn PDF document text
- http://prplus4u.com/ckupload/files/kaxirepatesomemosajusiza.pdfIn PDF document text
- http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/48542467426.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/6eb0c211b349900d26cb535c95d2ae32/doroteruzij.pdfIn PDF document text
- http://jatyn.cn/upfiles/202109/file/1631849812.pdfIn PDF document text
- https://mollis.rs/files/79552147441.pdfIn PDF document text
- http://sivam.pl/files/file/moluzifa.pdfIn PDF document text
- http://wolfpackbasketballacademy.com/content_docs/potamubamotigede.pdfIn PDF document text
- https://ratosatu.com/contents/files/90376982356.pdfIn PDF document text
- 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://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_off0000d4bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_01_sfnt_off0000eccd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECCD | 17472 bytes |
SHA-256: b45d0f96a88454cd8d1731a9dfcd0aa2aab2804dc9fe81d2e57bb2cac859a5a7 |
|||
font_02_sfnt_off00011a63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A63 | 10624 bytes |
SHA-256: d25a5683054ae5cddb4ccb3a692c9bbe1ba4993f55b8bb74b282492d68e23449 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.