PDF malware analysis — malicious · ef9680f0ef347e5b

MALICIOUS

PDF

72.1 KB Created: 2021-09-25 12:27:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27

MD5: 264536c051cd8889ca48bf4759bf2642 SHA-1: 04d74f2920e01dcc868b52d8dcb3f7b2456a130e SHA-256: ef9680f0ef347e5bc19ff72f883a203da63ebadb09ff45f49566371741b3f50f

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous links to external websites, many of which appear to be hosted on compromised WordPress installations, suggesting a link farm or phishing lure. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content, potentially for credential harvesting or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF 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_FARM

Small 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_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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_URL

One 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://nomylo.ru/uplcv?utm_term=geetha+govindam+full+movie+download+in+telugu+language PDF link annotation
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161470cd616c00---97605303107.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613050d6946a4---32092653927.pdfIn PDF document text
- https://marbeyoyun.com/calisma2/files/uploads/90978398825.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16141398c9be02---97397416097.pdfIn PDF document text
- https://zmiz.hr/userfiles/file/54251921881.pdfIn PDF document text
- http://acsalma.hu/userfiles/files/46979858290.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161355e3db8903---19091365564.pdfIn PDF document text
- https://giaphutelecom.com/tctt/sites/aaa/file/wirazamemajomejaserelujed.pdfIn PDF document text
- https://sportyou.fr/ckfinder/userfiles/files/51371954335.pdfIn PDF document text
- http://autowagon.it/userfiles/files/xulotixapupaxo.pdfIn PDF document text
- https://ferest.ro/imagini_ws/ralokijivamavigibope.pdfIn PDF document text
- https://doktor-ara.com/userfiles/files/99103888199.pdfIn PDF document text
- http://neo-net.info/giganet/files/file/67266616043.pdfIn PDF document text
- http://ansatrans.ru/admin/ckfinder/userfiles/files/94314996957.pdfIn PDF document text
- http://studioaeditecne.it/userfiles/file/95358849538.pdfIn PDF document text
- https://dpengineers.info/admin/userfiles/file/wunoxosatanod.pdfIn PDF document text
- http://commune-bourre.com/userfiles/file/57412396745.pdfIn PDF document text
- https://fishboat.hr/files/mopubawejiwebox.pdfIn PDF document text
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/jatimenekitelirajiki.pdfIn PDF document text
- http://thestarbusan.com/FileData/ckfinder/files/20210923_363DB93C066FBE74.pdfIn PDF document text
- https://menu2uplus.com/images/file/posigavegu.pdfIn PDF document text
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130aba802940---72515553836.pdfIn PDF document text
- http://emrc.ie/upload/imagecontent/file/62775241402.pdfIn PDF document text
- https://wietsevoermans.nl/ckfinder/userfiles/files/50521837224.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://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_off0000b51d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB51D	17268 bytes
SHA-256: `ccd6aa5b35ab21617af4a2f803729c01313c7112c6e9ae8cf7bd76bd9b2df03c`
`font_01_sfnt_off0000e166.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE166	10824 bytes
SHA-256: `e5dfc217599d854aca7582e8202da3cc80c0f0fd79618b21b6c777e73d177d91`
`font_02_sfnt_off0000fa13.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA13	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.