PDF malware analysis — malicious · bee7b111fc46dec5

MALICIOUS

PDF

85.0 KB Created: 2021-09-17 22:47:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: 16f96f2c65f4d4c3eab7021a48af64ca SHA-1: 4c9f2c77c8a38540dd08e94d783d71febed4eba8 SHA-256: bee7b111fc46dec52aa8574c9cf185c75f929ef8a4786f729f49f3519ea829f8

146 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs pointing to disposable hosting, suggesting a link farm or redirection mechanism for phishing or malware distribution. The presence of PRC/3D content is unusual for a typical document and may be used for exploitation or obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 0.9961

Heuristics 6

PRC/3D content in PDF medium CVE related PDF_PRC_3D

PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://synerhu.ru/uplcv?utm_term=disable+signature+verification+android+10 PDF link annotation
- http://exmar.it/foto_fck/file/barewafiroguz.pdfIn PDF document text
- https://cristalparkhotel.com.ve/ckfinder/userfiles/files/tulotem.pdfIn PDF document text
- https://maintogelonline.bet/contents/files/37141316190.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/77022552912.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/26815783234.pdfIn PDF document text
- https://samsunyapi.com/userfiles/files/40060786739.pdfIn PDF document text
- http://xn--80aab8aioy.xn--p1ai/userfiles/file/841550289.pdfIn PDF document text
- http://ominocoibaffi.it/userfiles/files/tipusedomulovizifo.pdfIn PDF document text
- https://reha.bg/content/upload/file/1054903710.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/9191643414.pdfIn PDF document text
- https://nsck-cykelmotion.dk/ckfinder/userfiles/files/kutamekadowisizunebugo.pdfIn PDF document text
- http://recko.ru/ckfinder/userfiles/files/48892898507.pdfIn PDF document text
- https://inprovitcentroamerica.com/ckfinder/userfiles/files/10850938422.pdfIn PDF document text
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/pozefatif.pdfIn PDF document text
- http://wsospice.org/uploads/userfiles/file/file/zawawusegubadofo.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc5e6dc1cb---venavujizibaxutefinodiso.pdfIn PDF document text
- http://kompletucetnictvi.cz/files/file/31080441271.pdfIn PDF document text
- http://carbontuning.ru/file/25747546984.pdfIn PDF document text
- http://xn--76-6kca8aqc6c.xn--p1ai/pic/userfile/saritopagiwevozusatuk.pdfIn PDF document text
- http://voyagevietnamlaos.com/hinhanh/file/87478645920.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/wegipizaj.pdfIn PDF document text
- https://www.luxboss.com/ckfinder/userfiles/files/32386126325.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_off0000e558.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE558	17952 bytes
SHA-256: `da0ddd3853a77dace4bf5ec9c3c29cbbaeef27277faef5d3a7892601f8ef876f`
`font_01_sfnt_off000114b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x114B4	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00012ccb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12CCB	11132 bytes
SHA-256: `fb03476c4bce4af058198100b419ec6455a5617ab8b5894b5df8a30fb6675086`

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