PDF malware analysis — malicious · fed5315ceffd656e

MALICIOUS

PDF

84.4 KB Created: 2021-09-05 10:23:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23

MD5: 93e7561685e39b85c9ab37e152895e63 SHA-1: a4dd910c0a1e10c1cb94bb7e375e0bfa774f0519 SHA-256: fed5315ceffd656ebf64e2457a5b9f8cde750352434ab9e0154b7e5c10f29287

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. The PDF structure itself is also flagged for containing link farms and duplicate object bodies, further supporting a malicious purpose.

Machine Learning

Nyx PDF Classifier malicious score 0.9905

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://studiogaleazzo.eu/userfiles/files/91294743576.pdf In PDF document text
- https://fnb-concepts.com/images/uploads/files/6553478701.pdfIn PDF document text
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/2ec8979ba91f488f757ffee023365932/50980083641.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2516f5cd59---47691211061.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/53b6f873ef9f55851472228eaad6722e/3762861388.pdfIn PDF document text
- http://tofuyatogo.com/uploads/files/35773534166.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e81a452e878---vimewibovemogaxikup.pdfIn PDF document text
- http://falls67.com/clients/50406/File/36915160896.pdfIn PDF document text
- http://batiment-tunisie.com/userfiles/file/rulubolusetasaworogubo.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/2e0b420244c2c4ef169506fbc5f56ed3/rexakiwisu.pdfIn PDF document text
- http://chukgoobok.com/files/fckeditor/file/65074513476.pdfIn PDF document text
- http://northcity.rs/slike/files/selakidipipituzevobe.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/t9orkcb8n9bf29vocnvsg4srfd/sekogos.pdfIn PDF document text
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/2c4msotokkp996l23poiscos6l/2283961937.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160798ecf747cd---migilowox.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/61925678491.pdfIn PDF document text
- http://bukvoznaika.ru/ckfinder/userfiles/files/nemobelulomudusejajo.pdfIn PDF document text
- http://huntland.hu/upload/file/35340575718.pdfIn PDF document text
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/d8aba91c2617a53a67d1887be48b8ec7/kogetal.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607df9fd4a42e---66266641329.pdfIn PDF document text
- http://musicandyouapp.com/webupload/editorimg/files/29124065325.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/3sghi5tiahpu3746hot4d80pp1/naxenevokokider.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609a416973216---46886385093.pdfIn PDF document text
- http://yearbookplus.com/uploads/ckfinder/files/fugumedomotof.pdfIn PDF document text
- http://bettynblue.com/upload/fck_img/20210728/file/gofederutasifedute.pdfIn PDF document text
- https://menlopark.com/wysiwygfiles/file/jafanudolazudolujexaj.pdfIn PDF document text
- https://vansuloi.com/uploads/userfiles/file/xevovosokalirakenigumetug.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=restricted+holiday+list+2019+pdfPDF 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_off0000e306.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE306	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000fb1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB1D	11232 bytes
SHA-256: `3a13efef7af0a814891e0ce0a2118995ac4e6195278ae043a0f117416cf2a699`
`font_02_sfnt_off000115b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x115B7	17752 bytes
SHA-256: `3605e807956271c61baf7f0d1db467427e73b8dc7d2eb239ce2cbb9ad6864e65`

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