PDF malware analysis — malicious · 6adfd61c0381a440

MALICIOUS

PDF

76.5 KB Created: 2021-09-16 03:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: ebf2057e804bcfa42658a0a0c3753cfa SHA-1: 2a0ec65d2dc831eb643df6fd789629532e109144 SHA-256: 6adfd61c0381a44094c753ec333d9bca1370fdc7950b213d6592d0261a14a555

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 external URIs and links to compromised CMS upload storage, suggesting it functions as a link farm to distribute further malicious content or phishing pages. The presence of embedded URLs and the PDF structure itself are indicative of a phishing or malware distribution lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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://smidgel.ru/uplcv?utm_term=maine+pyar+kiya+mobile+movie+mp4 PDF link annotation
- https://aldurra.ly/images-editeur/img/file/rosebidex.pdfIn PDF document text
- http://pnmanagementsolutions.in/uploads/45392411406.pdfIn PDF document text
- http://iphonedown.com/ckfinder/userfiles/files/defomirijizasuded.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/njmtdln1b62ubbt3uckdqbgsmu/7844228012.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/bo918s0e2cn7cftcfft24jsnqc/95285251447.pdfIn PDF document text
- http://escrima-rlp.de/userfiles/file/rotapal.pdfIn PDF document text
- http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/tavokagixare.pdfIn PDF document text
- http://htwy.com/upload/file/89242400687.pdfIn PDF document text
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/de5d2acc8815eb769c7cdae00810b087/bekuta.pdfIn PDF document text
- https://www.meditech.cz/ckfinder/userfiles/files/60381126566.pdfIn PDF document text
- https://grandhotelushba.com/userfiles/file/11709184824.pdfIn PDF document text
- https://www.bnbtravels.com/ckfinder/userfiles/files/subilasajobotisiba.pdfIn PDF document text
- https://ahha.az/userfiles/file/kusogogomiru.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132705d84a90---nesidetar.pdfIn PDF document text
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/jalofukuvoxetefaw.pdfIn PDF document text
- https://keluargamimpi2.com/contents/files/forarapisufefebexokoxupud.pdfIn PDF document text
- https://nepalonlineexam.tisaracademy.com/userfiles/files/nufevotalet.pdfIn PDF document text
- http://sumosushingrill.com/uploads/files/93549315272.pdfIn PDF document text
- https://watosaphotography.com/app/webroot/userfiles/files/20210914_083256.pdfIn PDF document text
- 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_off0000c291.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC291	10628 bytes
SHA-256: `9004a45ff5de884048d41982727a043e8e122de5bf3a0edbb5f2ff0e8bb571e8`
`font_01_sfnt_off0000daa2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDAA2	19424 bytes
SHA-256: `ce232f8c71b09933fa1693a792c02988f04a40732d63d750fa4b6317f52d27e1`
`font_02_sfnt_off00010cd0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10CD0	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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