PDF malware analysis — malicious · 612a0a6a678de46a

MALICIOUS

PDF

81.0 KB Created: 2021-09-14 04:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05

MD5: 98a58d75c30a2a8ce1896e1699a98af3 SHA-1: 7791343ba66b7835935d4d564441ccb9c7f9c159 SHA-256: 612a0a6a678de46ae79861df0e16e874efe2d341f2bdaee9e77c30088a351f99

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which are part of a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were directly extracted, the PDF structure and numerous external links suggest an attempt to trick the user into downloading a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9960

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
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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://garglob.ru/uplcv?utm_term=download+getcontact+premium+mod+apk+2020 PDF link annotation
- https://alwaysthesame.pt/site/upload/file/18924215821.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/jirekamibogudozi.pdfIn PDF document text
- http://dnt-mayak.ru/content/File/napamabexen.pdfIn PDF document text
- https://pmeds.us/userfiles/file/bebirazixomaxe.pdfIn PDF document text
- https://bold-iot.com/uploads/files/202109021105375268.pdfIn PDF document text
- http://studiocommercialedelpiano.it/userfiles/files/fawami.pdfIn PDF document text
- https://seedcambodia.org/htdocs/cljr/data/files/37301107269.pdfIn PDF document text
- https://lienlacanien.com/img_pages/file/wunigim.pdfIn PDF document text
- http://tgtech-auto.com/userfiles/file/91318741886.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133520cdbd77---66522082632.pdfIn PDF document text
- https://abofahed.com/userfiles/file/zubepikediwazosufutut.pdfIn PDF document text
- http://df-2.de/images/daten/file/xobax.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/161361663ce978---jazajiwejobekazimepukuj.pdfIn PDF document text
- https://lazdynumokykla.lt/userfiles/file/95563021732.pdfIn PDF document text
- https://www.milestonesmn.org/ckfinder/userfiles/files/38480154166.pdfIn PDF document text
- http://commune-bourre.com/userfiles/file/25504006474.pdfIn PDF document text
- https://totalsewa.com/userfiles/file/kibiwasiw.pdfIn PDF document text
- http://pujcovnanaradi-tvarozna.cz/userfiles/files/78562889295.pdfIn PDF document text
- http://chukguwang.com/files/fckeditor/file/88516603385.pdfIn PDF document text
- http://toanthinh.vn/webroot/img/files/xatekamazogoxaxiw.pdfIn PDF document text
- http://www.casasemio.com.br/ckfinder/userfiles/files/lewexajemurowugerukeg.pdfIn PDF document text
- https://5uempat.com/contents/files/mipofizojanijakitinivov.pdfIn PDF document text
- https://kaxtongroup.com/home5/maxconne/public_html/kaxtongroup/assets/images/newspostimages/files/78399583282.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_off0000d4cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4CF	18736 bytes
SHA-256: `4cb0ca251033052854b5fe516a92df343d16f441ffdf40912206b320241e0a13`
`font_01_sfnt_off0001058d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1058D	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011da4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11DA4	11208 bytes
SHA-256: `d4745a01793d2c2ee1464f6dc6219a968c11344ca99ceca412dd84fbf384c1d7`

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