PDF malware analysis — malicious · d2e67aa60a280691

MALICIOUS

PDF

72.1 KB Created: 2021-09-06 06:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: f77e08ee3e72def0afe7e9a3fc3d6077 SHA-1: 0eac0b9112a455e11be275c72ad912c691f0e0dd SHA-256: d2e67aa60a280691e3e632e07848442a5a56e0cc1ec2e0c1ecb327013e498e01

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to external resources, many of which are hosted on compromised websites or disposable domains, suggesting a link farm designed to distribute malicious content. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document intended to trick users into downloading further payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.6260

Heuristics 5

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
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 http://studioscoponi.eu/userfiles/files/lewujimevodejaferawaja.pdf In PDF document text
- http://sumbulefendiegitimvakfi.com/resimler/files/83232480265.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4cd9507c6---luvarutemewefigefezosaban.pdfIn PDF document text
- http://congtyvima.com/images/Download/23188147645.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/3dae6aeb25041feab0ff6315e601d6ce/buromaz.pdfIn PDF document text
- http://yangs-ns.com/ckfinder/userfiles/files/20210906080046.pdfIn PDF document text
- http://bsbcarpet.com/userfiles/file/47776615217.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/43193ca2136fe5455c737f6d44c38097/xuxosipejoli.pdfIn PDF document text
- http://gaziogluenerji.com/images_upload/files/99011430706.pdfIn PDF document text
- http://tribo.kz/userfiles/File/24254954350.pdfIn PDF document text
- https://pass-eco-energies.com/ckfinder/userfiles/files/54985883405.pdfIn PDF document text
- http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/10092518151.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/bd1d9aafe0b33c3b7c208f487b6d3a2f/67072257645.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/6de3b9d9ba88d0b9e2f48d5c3bdf2b9a/79404758249.pdfIn PDF document text
- http://indemo.pl/Image/files/54286890279.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16109863a38cd4---neduxikodoxokunonarebupi.pdfIn PDF document text
- http://minerva-collection.net/files/files/xofufibuxurudukam.pdfIn PDF document text
- http://andlupa.com/userfiles/file/43166110931.pdfIn PDF document text
- https://nhabe.com.vn/ckfinder/userfiles/files/roruzolunare.pdfIn PDF document text
- https://vico-inmobiliaria.com/ckfinder/userfiles/files/robifezusimoxuvisuzoser.pdfIn PDF document text
- http://22vek-omsk.ru/fck_editor_files/files/13035630773.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/978d438d3b560ea6d895a81eb7d19aaf/wofevemodesuku.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=fundamentals+of+physics+10th+edition+solution+manual+pdf+downloadPDF link annotation
- 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_off0000c269.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC269	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000da7b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA7B	18568 bytes
SHA-256: `b80e37c4ff223bf8390934e2936c1f528b4e5ffdbfd9dfd20856f246f65910ba`
`font_02_sfnt_off00010b12.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B12	11236 bytes
SHA-256: `0f9915c9641d7f1ba826749079b7c88cc36878cd9eb30eaab99a51aebadd9797`

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