PDF malware analysis — malicious · cd30f97396bef1cf

MALICIOUS

PDF

82.4 KB Created: 2021-08-19 22:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: 342529303b81c5348f487f576d0b9f9d SHA-1: be705080e8fcb8b9de31e8c7a80db9d05433700c SHA-256: cd30f97396bef1cfbc5adf63f2a9c5e110909534aecde6702fde3cbabd2d281d

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics suggest it functions as a link farm, directing users to potentially compromised WordPress sites hosting further malicious content, specifically PDFs. The presence of a 'Fake invoice / payment lure' heuristic further supports the phishing or scamming nature of this document.

Machine Learning

Nyx PDF Classifier malicious score 0.9911

Heuristics 8

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL

PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/092ce5ee822bcd1e897b128b7dc6d70d/84868342539.pdf In PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/1a034ff7720bdb57be5d0f413ee424ca/2113163889.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160748591c7abc---mamamevaxegekefewozo.pdfIn PDF document text
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e2c21ef3cf---sumogagavogesowomuvexu.pdfIn PDF document text
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/826889682ff6e20e91bddb5e6df57896/lemokopowemijepegi.pdfIn PDF document text
- http://aj-logistics.com/stock/userfiles/file/netovixubuxoxe.pdfIn PDF document text
- http://edu-family72.ru/content/images/uploads/file/wamulimofilevipemuxetor.pdfIn PDF document text
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b1b4b4eb2a3---74934858290.pdfIn PDF document text
- https://acronimocostanzo.com/userfiles/file/2076953130.pdfIn PDF document text
- https://tahitotfaluovodak.hu/ckfinder/userfiles/files/94956317348.pdfIn PDF document text
- http://medicapoland.pl/uploaded/file/40231453222.pdfIn PDF document text
- http://erex.hu/upload/file/peniwotisexosumoj.pdfIn PDF document text
- http://chinalabware.es/d/files/25620713934.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd74a483fd---lujimisufeke.pdfIn PDF document text
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/7cee5286701ae144015942e713fdb8ea/24909886497.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/33up8a5lrfi6jq5n20co03dqh4/segopexamanurapuxe.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16095d9857fefc---rijetaminalife.pdfIn PDF document text
- http://ipost.mn/ckfinder/userfiles/files/84898043879.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f33e80c28---1327739064.pdfIn PDF document text
- https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/20938798810.pdfIn PDF document text
- http://herningbadintra.dk/app/webroot/upload/files/40676890041.pdfIn PDF document text
- http://somersetcountybar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rapemotiviwomoze.pdfIn PDF document text
- http://3e-recycling.ru/app/webroot/filesfiles/xubowidebonutotap.pdfIn PDF document text
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1609a49a08b727---29705777165.pdfPDF link annotation
- http://romangruszecki.com/uploaded/file/59792202028.pdfIn PDF document text
- https://cooperspick.com/files/42887078911.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1607df65d6ab62---rafejegudabebe.pdfIn PDF document text
- http://glotecgh.com/upload/editor/file/31155884076.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=marie+clay+running+records+bookPDF 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_off0000daaf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDAAF	10888 bytes
SHA-256: `b2d8e8587a0651668ba71b9633d9006ffa3589a728e97631ae44102258efb647`
`font_01_sfnt_off0000f3c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF3C2	18304 bytes
SHA-256: `ca7a246b5d1373dc91305e0fe999410d1e87175f384b38fed58891fb41d5577b`
`font_02_sfnt_off00012389.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12389	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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