PDF malware analysis — malicious · ea18f5d015fe8d06

MALICIOUS

PDF

84.9 KB Created: 2021-07-04 11:59:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14

MD5: ece2431791d558c1dacc702647714b50 SHA-1: eff3120edba13ccaeaf240f1ee8e11191a2f1ca9 SHA-256: ea18f5d015fe8d06e24c904a33ecf50f69bc24a87336f8db21715ed3ee9380ef

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9951

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://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/m87dafjppqn65cikr6t6mb8e2a/49754036380.pdf In PDF document text
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/v47dev984s2bb2vdrnntnv3btp/55388933233.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871846cd30d---towuro.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/golemobixosizovuvinogigi.pdfIn PDF document text
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c75f73b5f8---54062469502.pdfIn PDF document text
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/2bbead412145a1ca37be80311005ebc2/2996440481.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607acac75601c---jasopakop.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac471146ce4---zadigisigas.pdfIn PDF document text
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d27a940c4---vufavesasopos.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/kirejulasawujaxiso.pdfIn PDF document text
- https://aronabritcan.com/userfiles/file/40695100779.pdfIn PDF document text
- http://ladue62.com/clients/2/2d/2d0487a90c18d3a1b3df44839405a665/File/39056896303.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607d35c67c9e1---36396952257.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/487e0604beca2aef8ded4479056d2bff/56877619186.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160d787b4a3da2---4251611447.pdfIn PDF document text
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607952e802cd5---gemaza.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee62823d88---423619463.pdfIn PDF document text
- http://universe-micro.com/upload/files/20210628_185248.pdfIn PDF document text
- http://geoodwierty.pl/files/file/48793842291.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/odo6393rdqh71610sh75cbq016/18112375242.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c26b06b48d---mawagobofivim.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d83a05130---zelojidiwulagizawakikas.pdfIn PDF document text
- http://museeducuir.org/upload/files/geveretitimaworep.pdfIn PDF document text
- http://ajarnveerapong.com/UserFiles/file/3874803451.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=7th+standard+science+question+answerPDF link annotation
- 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_off0000eb30.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB30	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00010347.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10347	10704 bytes
SHA-256: `1ad4238c4b3cebb29fc6bc6b1470bad428e3e41593b3f3277e055093b5de73ca`
`font_02_sfnt_off00011bad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11BAD	16320 bytes
SHA-256: `e4681fc62d9a8ce1bf7acbf7b32d454e2c24f60a1d7e41955e03089d71283dc0`

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