MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload directories and disposable hosting sites. These links likely serve as a lure, potentially for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 http://liga-stf.ru/i/upload/files/terivubanerutulibawafuzab.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/d3f45bac260f094658d1bdbff8d6f14d/78049311086.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1d439732d---xafakekasizefapurokaf.pdf
- https://felicitareonline.ro/ckfinder/userfiles/files/40547156846.pdf
- http://titusrelay.com/clients/e/ef/ef304ccc03541e9e6382bef5f13b0a7d/File/tevikufivesuwarakekek.pdf
- https://maychieuvinh.vn/upload/files/74569580767.pdf
- http://osc-pribor.ru/products_pictures/file/betalixobudamu.pdf
- http://china-engine.net/ckfinder/userfiles/files/tuber.pdf
- https://bouveau-consulting.com/userfiles/file/77043750320.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae6a207ba26---zamelut.pdf
- http://al-farh-iq.com/upload/userfiles/file/34966885110.pdf
- https://amd-export.com/site/upload/file/repibamafejogeforerenode.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/18e66eb40d8f00cb1f2c02b69a90aa77/gatofojixufibemuzisos.pdf
- http://www.propper-droppers.nl/files/file/75971756380.pdf
- http://linza-market.ru/upload/files/memaxomasizutenuvevok.pdf
- http://mrukseo.pl/userfiles/file/zexemoxamizegemugit.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161145719c0d06---39117677829.pdf
- http://tns-china.cn/editor_upload_image/file/1218464304.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160c9827e4b538---lobonazonirasukekon.pdf
- http://daithanhnam.com/upload/files/81653091578.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/a8nr4ammug9rlvctck6v0i2cma/18584887468.pdf
- http://www.gieskestukadoors.nl/ckfinder/files/files/73092264044.pdf
- https://equipelec.fr/ckfinder/userfiles/files/silenimu.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16071698f150b4---63640361874.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=adding+proper+and+improper+fractions+worksheets
- 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_off0000d1c2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1C2 | 16792 bytes |
font_01_sfnt_off0000e9d9.bin60dfc83016540c1835e0c1705edafbd9d13c993598e4a0783ae10f730b7c22fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D9 | 11180 bytes |
font_02_sfnt_off000103b0.binb35dcd81dd0b16c81e03d215d8bcabe0c8e815406628bed70d239a7676c47fb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B0 | 17380 bytes |
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