PDF malware analysis — malicious · 7c0ec18099287f00

MALICIOUS

PDF

69.0 KB Created: 2021-09-08 13:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: 3260341e5736460c86c1321424ec1252 SHA-1: 95f67202128d8a54e8950ae33272270ed2b2dbbe SHA-256: 7c0ec18099287f0072d711620b2d49a22409f02d72aaff3967cf5f3b237cae68

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a high number of external URIs, many of which point to disposable hosting and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or redirecting users.

Machine Learning

Nyx PDF Classifier malicious score 0.9978

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://archism.ru/uplcv?utm_term=hessaire+mc37v+manual PDF link annotation
- https://madspot.dk/ckfinder/userfiles/files/28240516194.pdfIn PDF document text
- https://www.hotel-restaurant-plainfaing.fr/ckfinder/userfiles/files/49937273097.pdfIn PDF document text
- http://kapalishakti.com/ckfinder/userfiles/files/38738767857.pdfIn PDF document text
- http://sfipl.in/userfiles/file/vibanulorevupipu.pdfIn PDF document text
- https://nyig.com/files/file/32374349807.pdfIn PDF document text
- https://habibitoursegypt.com/ckfinder/userfiles/files/75231511206.pdfIn PDF document text
- https://strongpointmarketing.net/userfiles/file/98024398059.pdfIn PDF document text
- http://studiopol.com/userfiles/files/bofuteposuvabeponob.pdfIn PDF document text
- http://getampedmag.com/ckfinder/userfiles/files/27967872376.pdfIn PDF document text
- https://csodamalom.hu/files/files/zoxulepesilurikepikabez.pdfIn PDF document text
- http://fuku-zou.com/userfiles/file/nubozerenifovowape.pdfIn PDF document text
- http://gagutp.com/sa_upload/userfiles/file/20210904132134.pdfIn PDF document text
- http://2safe4u.cz/UserFiles/File/11300075868.pdfIn PDF document text
- http://suriyedostlukdernegi.org/image/files/zamekupakimaxofozozaka.pdfIn PDF document text
- https://investincarpathians.eu/app/webroot/media/files/17335690995.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e991bd529---gariratorimikoniwutozanu.pdfIn PDF document text
- http://tolaniprojects.com/userfiles/file/9535885980.pdfIn PDF document text
- https://orig-shop-gsm.ro/ckfinder/userfiles/files/depivuzerorisafilip.pdfIn PDF document text
- http://aptwash.com/userData/ebizro_board/file/31526604242.pdfIn PDF document text
- http://ux02.wadhost.com/js/ckfinder/userfiles/files/vabividamipemuje.pdfIn PDF document text
- http://graficaeformazione.it/userfiles/file/50256193170.pdfIn PDF document text
- https://grupo.iberia.com/js/ckfinder/userfiles/files/58702024505.pdfIn PDF document text
- http://s292376414.onlinehome.fr/datas/imgmail/file/38485363159.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_off0000b263.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB263	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000ca75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA75	14380 bytes
SHA-256: `29655e48829ee8b4e9dbc9a1ab5d421e2afe94f9f0d5a6f13596a24d6b7f0b59`
`font_02_sfnt_off0000ee03.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE03	10552 bytes
SHA-256: `4750661a9232cbb16194198e5279daf2e0b80b3dc491afe0b0c1f91584817669`

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