PDF malware analysis — malicious · e41358144d54ebc7

MALICIOUS

PDF

80.7 KB Created: 2021-09-12 02:13:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 027e5032b595b06ce1e7edeac1782ec5 SHA-1: 58cc4add978f6eaf59436be355a48bb00ce5da65 SHA-256: e41358144d54ebc7e41a997fcdf47c4bb951078ee6f8def5505616e5e47ed5b5

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier, indicating malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, such as http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/f62cc2418eae0ddea7b416d20e4d2908/19268954449.pdf, are likely used to redirect victims to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9917

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 http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/27850243118.pdf In PDF document text
- http://rrbrentacars.com/files/others/piliwa.pdfIn PDF document text
- https://agrando.cz/files/file/73064326458.pdfIn PDF document text
- https://tdemo.order-pro.com/ckfinder/userfiles/files/muvifinoferug.pdfIn PDF document text
- http://ersenergy.com/UserFiles/file/79298379363.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/f62cc2418eae0ddea7b416d20e4d2908/19268954449.pdfIn PDF document text
- http://ediljolli.com/userfiles/files/xedegedunapaluwure.pdfIn PDF document text
- https://permargi.com/files/galeria/files/fixubizifitodorozuw.pdfIn PDF document text
- http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/62316903417.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb651245bb---xapibiwuvademagosozux.pdfIn PDF document text
- https://burstallconrad.com/editor_files/file/bifekitupojekupo.pdfIn PDF document text
- http://ipceurope.be/assets/file/20960302247.pdfIn PDF document text
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/a7282a062789020219c604e0e76d2f13/lisugopotakonodader.pdfIn PDF document text
- https://tese.in/ckfinder/userfiles/files/14357140930.pdfIn PDF document text
- https://shopexpert.com/app/webroot/files/userfiles/files/50274274782.pdfIn PDF document text
- https://brigitte-farner.ch/userfiles/files/4893246813.pdfIn PDF document text
- http://synergienetwork.net/userfiles/file/80236646589.pdfIn PDF document text
- https://thuanxuongmonmb.com/admin/webroot/upload/image/files/97394915855.pdfIn PDF document text
- http://chiesamadremarsala.eu/userfiles/files/86596494623.pdfIn PDF document text
- http://hzxf.com/images/upload/File/gejadozaxugefatobidobux.pdfIn PDF document text
- http://salamatekhanevadeh.ir/ckeditor/files/files/matexazufugezufekobonore.pdfIn PDF document text
- https://megatex.ua/images/uploads/file/dijorex.pdfIn PDF document text
- http://lovepetclinics.com/file_media/file_image/file/pulesedidifamubuli.pdfIn PDF document text
- https://unitedfightalliance.com/ckfinder/userfiles/files/gumobuziguwogu.pdfIn PDF document text
- https://hantverkarenisandby.se/UserFiles/files/gaxop.pdfIn PDF document text
- http://meuble-tunisie.com/userfiles/file/87544471731.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=set+sd+card+as+defaultPDF 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_off0000d7cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD7CB	10328 bytes
SHA-256: `53adb299a5b5b68c351c316e82f4625e7ee1ef3b3d0411ae62940dccf971d9b2`
`font_01_sfnt_off0000ef41.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF41	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00010753.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10753	17620 bytes
SHA-256: `3c56acb90330536844c54bcbb7904ae832878106740d37c821225f67e549dc58`

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