PDF malware analysis — malicious · 47feacdfaaebe019

MALICIOUS

PDF

89.7 KB Created: 2021-07-05 02:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13

MD5: 6def7b6e12bbfef151baf8a55b0d8f91 SHA-1: a49a82c2dfcb19e2230817d09683848945496f95 SHA-256: 47feacdfaaebe019aaeb8fa3324591c1e17f307943c08ffbe374ff033a185b1e

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate the document's primary purpose is to redirect users to external malicious sites, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9822

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://inwebjor.ru/uplcv?utm_term=fallout+4+electricity+guide PDF link annotation
- http://guides2alpes.fr/uploads/file/senosakabapobuvutixopew.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1f8cea4ab---pasujepuxufazuke.pdfIn PDF document text
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/57e5f00168291fe410894a550833d171/33875973178.pdfIn PDF document text
- https://baongochoa.com/upload/file/24390709016.pdfIn PDF document text
- http://17njl.com/userfiles/files/65247300250.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/jujv4c7vng1s3k10lbea46t4q2/jaratolilipup.pdfIn PDF document text
- http://taxicityplus.ru/userfiles/file/41830580979.pdfIn PDF document text
- http://www.advokat.com/app/webroot/img/fck/file/51618773008.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac72c152d41---mivakupipajejadi.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/ds988c93n210g8gbrjhq3rd2et/80766303212.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/78067643442.pdfIn PDF document text
- https://baxsporthorses.com/userfiles/file/pipir.pdfIn PDF document text
- https://bedandbreakfastchia.it/userfiles/file/sulesuradexubepexaji.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/40684575753.pdfIn PDF document text
- http://www.startservis.sk/novy/ckfinder/userfiles/files/nokevuzipamipagadawirim.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e69eb2c5e4---83058361334.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608559373adad---58057338362.pdfIn PDF document text
- http://gtlitalia.com/userfiles/files/kexomepefovigowitodil.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9532114bd---30555645012.pdfIn PDF document text
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/fe9c06f0377f4b6eea26705973877530/munoxedewudokimolamobol.pdfIn PDF document text
- http://ilovegabal.net/fckeditor/_upload/file/fatifilevujenivizetuw.pdfIn PDF document text
- http://greenhousehotel.vn/uploads/image/files/96400700083.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075abb19c0e5---41919875621.pdfIn PDF document text
- http://automotiveenergy.cz/userfiles/file/tovozonufokakafimujogib.pdfIn PDF document text
- https://abandassociates.com/ckfinder/userfiles/files/pilug.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e71651bb22---lilovowaliw.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/7f40054e84e581e39afdf82679d48c11/40266380302.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_off0000fb63.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB63	17400 bytes
SHA-256: `1b13f737c7ef142fb4cd11f4e5ca6b2d962f1d9fe9b8f763ff21c234d24a7f25`
`font_01_sfnt_off0001293a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1293A	10544 bytes
SHA-256: `c7debba6dbbfece1c69ddd3547b7f769f83a6e2b94676bc939177b4c597e5b05`
`font_02_sfnt_off00014142.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14142	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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