PDF malware analysis — malicious · 3ee9a4aeaae85e9a

MALICIOUS

PDF

70.8 KB Created: 2021-09-28 05:04:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: 9792b4b953e142e8976401f82a97ae72 SHA-1: 3b6287112a57ad443a8e1e638568ace9566861f3 SHA-256: 3ee9a4aeaae85e9ab2e727eae4b1d50b532bb7b543e9fad0b9dec8aa1970f990

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript, suggesting it attempts to execute code within the PDF viewer. The presence of numerous external URIs, many pointing to PDF files on disposable hosting, strongly suggests a phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9968

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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://blogsma.com/files/xebinopomakatisibosokikaj.pdf In PDF document text
- https://reaga.net/js/ckfinder/userfiles/files/vefigaxixukugeviriva.pdfIn PDF document text
- http://ji-tien.com/userfiles/file/94440168317.pdfIn PDF document text
- http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/15538060815.pdfIn PDF document text
- http://thesprotia.gr/uploads/file/wazipinavalivesomarula.pdfIn PDF document text
- http://pelejas.com/IMAGENS/CKFINDER/files/89937958469.pdfIn PDF document text
- https://girl0229960192.com/upload/users/files/40306876879.pdfIn PDF document text
- http://keifo.ru/ckfinder/userfiles/files/pokexu.pdfIn PDF document text
- https://webornate.com/viking1/uploads/files/63187175786.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/21721279676.pdfIn PDF document text
- http://dade666.com/userfiles/202109file/2021091314282570554.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/4704996348.pdfIn PDF document text
- http://coimbrasoftware.hu/images/uploads/files/97945728287.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/40424622494.pdfIn PDF document text
- http://conkheror.com/ckfinder/userfiles/files/80316033510.pdfIn PDF document text
- http://xedaptap.net/userfiles/file/82816307357.pdfIn PDF document text
- https://gbagencement.fr/uploads/file/6773396502.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613450423fe69---janogerakozemadidob.pdfIn PDF document text
- http://sashtraayurveda.com/ckfinder/userfiles/files/49312737220.pdfIn PDF document text
- http://belean.pl/userfiles/file/fukunefidumudulipupom.pdfIn PDF document text
- http://alisawedding.com/upload/users/files/xatizujise.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133fac7cbb5e---21064592743.pdfIn PDF document text
- http://nofatrans-int.com/userfiles/file/ferilili.pdfIn PDF document text
- https://chiataiec.com/userfiles/Proj_Name/files/vejapavu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=new+york+2009+full+movie+onlinePDF 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_off0000aff8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAFF8	16760 bytes
SHA-256: `2aa232f41b2d29a92ba1aeb72648c621216cbff68b54f0ef5cd9c2e403656d93`
`font_01_sfnt_off0000db0c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDB0C	10792 bytes
SHA-256: `570576e536e86cb165d10217f2208d9faec7e87899f2419e4d0f6009a1e6c998`
`font_02_sfnt_off0000f40c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF40C	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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