PDF malware analysis — malicious · 47508c45de6e35a2

MALICIOUS

PDF

74.0 KB Created: 2021-09-11 11:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07

MD5: 18768025bcc4f166e45aa630ebea516a SHA-1: 04e799fd1d2eee8d12a9be54a09ac30288569899 SHA-256: 47508c45de6e35a2001ac674bfcb2787a4ff74da50d2db0fc771f6a9f95a2e46

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a Pdf.Phishing.Trojan. The document contains numerous external URIs and link farm patterns, suggesting it is designed to redirect users to compromised websites or phishing pages. The presence of embedded URLs and the nature of the link farm heuristics indicate a likely intent to distribute malware or harvest credentials.

Machine Learning

Nyx PDF Classifier malicious score 0.9973

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=guddiyan+patole+full+movie PDF link annotation
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134bdb5df523---97559091942.pdfIn PDF document text
- http://jinanxintiandi.com/userfiles/files/fapepotijobawafuroxo.pdfIn PDF document text
- http://wwm-quanta.com/upload/files/vamipi.pdfIn PDF document text
- http://shsuorui.com/uploadfiles/fckeditor/20210905/file/16308580323140.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/012038459417.pdfIn PDF document text
- https://dalnoboy.com/data/filestorage/upload/files/vimogemojugudonef.pdfIn PDF document text
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/ee5be65c833f3c19fdae52cec9c1dc13/tunabadedajapo.pdfIn PDF document text
- https://gloriamus.org/Uploads/userfiles/files/87421214705.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161388a7d16367---zexebafenorazekujopawajo.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/43890933147.pdfIn PDF document text
- https://agrimal.pl/userfiles/file/xatukunazaxoj.pdfIn PDF document text
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/4d7304be36ee39fbb6bd720308082e8e/pomenilumuwuxulobokul.pdfIn PDF document text
- http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/38109344545.pdfIn PDF document text
- http://biomehl.com/images/content/files/kazesozotugivobokaxujajos.pdfIn PDF document text
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613616a840c6a---pobisarisijak.pdfIn PDF document text
- http://61kidsclub.com/userfiles/file/buregilavarevoduzezamo.pdfIn PDF document text
- http://www.szphotar.com/admin/img/files/43864874498.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/nirelajipiwugon.pdfIn PDF document text
- http://mbfeed.vn/upload/files/jokikutepuno.pdfIn PDF document text
- https://bk.knu.ac.kr/ckfinder/userfiles/files/jimezujaxikaves.pdfIn PDF document text
- http://celcg.pl/uploaded/file/jixekufo.pdfIn PDF document text
- https://indicaperu.com/userfiles/file/60840471707.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/bowenedodu.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137a5b39ee99---94859490013.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_off0000bd07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD07	17268 bytes
SHA-256: `497996835765369eb6817a53be2196d0619ac8d11ff04d76ec26a85b93207c2c`
`font_01_sfnt_off0000e940.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE940	10708 bytes
SHA-256: `20efb241e5913e9380b645eecc6b63f503fa15160895acc1cdbbd8d37f463009`
`font_02_sfnt_off000101de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x101DE	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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