PDF malware analysis — malicious · e69386ea5864dbea

MALICIOUS

PDF

89.3 KB Created: 2021-07-29 19:30:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07

MD5: 79d6f20767ab6b417fbc3313ef427402 SHA-1: b5fdc3389a47b2a945d23ab692ef28460d9e1c44 SHA-256: e69386ea5864dbea3167a25003d88df2fe82810a8198b2f537f9777fc2a9e01e

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 phishing trojan. It contains numerous external URLs, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure indicate an attempt to exploit users through deceptive links.

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://drafthe.ru/uplcv?utm_term=are+all+seasons+of+naruto+on+netflix PDF link annotation
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e29d84b909c---xogunu.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/enbigihlfan7pguq4eqn8ure8f/54794666094.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/c7a15c167ce8b973b0a997fc5c435766/goxixexuwapekodolofusene.pdfIn PDF document text
- https://rieker-consulting.eu/files/file/xegumofobugimejobiwazuv.pdfIn PDF document text
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160910ca0c3be2---zijabuvilawubujozip.pdfIn PDF document text
- http://arci-mp.fr/admin/File/wogomonafutu.pdfIn PDF document text
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/c4a834560f93ab075346106d0f6ff5d5/13835537576.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/44414385407.pdfIn PDF document text
- https://clinic4lab.com/upload/ckfinder_temp/files/20210617224416.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/6359597f48cc72c1245242a0a9bb2814/38270681537.pdfIn PDF document text
- https://deltarealestate-eg.com/userfiles/file/fejovasejiriviwewakotax.pdfIn PDF document text
- http://ladyvenus.it/userfiles/files/bavawop.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b82c4e19d94---maxufike.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a447d63bb60---16940532334.pdfIn PDF document text
- https://yellowstonewildlife.com/1118183801.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/n5dsgob9pcunfb6nksuptrkoho/96187483813.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5aa012967---mogiw.pdfIn PDF document text
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/d0911a2fb55ca419b4b52c0c30ebbc84/fuwevemerenojud.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/fb4451b9804c3394d774d69928a80178/87014643332.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1100d0d78---98258192944.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/mnjiqnq6s4lcetkudim54bdi16/togebadobi.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc84143cbc---petasipipimu.pdfIn PDF document text
- http://www.77ice.com/upload/files/45902667684.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/4eb4820e6d0e1cdbf383cb4aed47e3e9/wuwiluwevisofitusolif.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16085e792a904a---76770742703.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_off0000f989.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF989	10388 bytes
SHA-256: `8cc67b7bdf103868572d471ef77fbfe89459db4d6a36977d83a993d9d39430f8`
`font_01_sfnt_off00011135.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11135	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00012947.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12947	17680 bytes
SHA-256: `4dc5b232d58eec3309c32692cd4ba1f12ea17e282396c1017335055ac65828fc`

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