MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The file was detected as a malicious phishing trojan by ClamAV and ML classifiers. It contains a link farm pointing to multiple domains, many of which are hosted on compromised CMS upload storage or disposable hosting. The heuristic 'SE_QR_LURE' suggests the document may instruct users to scan a QR code, further indicating a phishing or redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 http://daugiavanthienphuoc.com/media/ftp/file/dapivuletuvoxitesopifika.pdf
- https://sapporomn.com/userfiles/files/votogufav.pdf
- https://vnsteeldetailing.com/UserFiles/files/51229197947.pdf
- https://asztromiskolc.hu/ckfinder/userfiles/files/16025172052.pdf
- http://cesnek-vysocina.cz/UserFiles/File/28239758998.pdf
- https://eownauto.com/uploadpic/files/gemegutisifawadifif.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161328a02e3b0b---75375281945.pdf
- https://krainaogrodow.eu/zdjecia/fck/file/tomowumesenozetesujed.pdf
- http://kukubara.com/zdjecia/file/42570747606.pdf
- https://ohcsi.com/ckfinder/userfiles/files/11091969177.pdf
- http://creativecoms.net/userfiles/file/jamavopo.pdf
- https://priscar.com/documents/files/xakosidamawofor.pdf
- https://netiko.fr/img/Data/file/sadabamoxarisowug.pdf
- http://asqcert.net/files/files/36881022542.pdf
- http://amblesidewindermere.ca/fckuploads/images/file/46257420422.pdf
- http://itfkarnataka.com/cvsprojects/SSK/Source/2.0.0/images/files/59799572484.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342646cce76---lokikujusuvadiputumesi.pdf
- https://abyway.lv/images/ck_images/files/96220144320.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16142945cb81d9---24590272506.pdf
- https://ego-sofa.tw/uploads/files/202109130500078007.pdf
- http://rajhansnursery.com/userfiles/file/91165316238.pdf
- http://777mto.info/contents/files/28193431272.pdf
- https://cuichi177.com/uploads/files/202109031918387189.pdf
- https://muzpony.de/obrazki/file/96844250184.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=mirror+tablet+to+phone
- 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_off0000be7b.binaa394adbb1de3af667afdc1e7a73d06cdeebdac5bb292b8398fb39a0ab725889 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE7B | 10316 bytes |
font_01_sfnt_off0000d569.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD569 | 16792 bytes |
font_02_sfnt_off0000ed7b.bina0df2df26e0dfed6b001c72c5aae0890983dac45805dc635205b45149b8f0f08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED7B | 16460 bytes |
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