PDF malware analysis — malicious · aac216c6297a637b

MALICIOUS

PDF

77.7 KB Created: 2021-09-21 00:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: 2d2cd741fb1639b2c98d26fb16c6c191 SHA-1: 8a9fd3104a49e1a7374f424c1a7f0b198811f8eb SHA-256: aac216c6297a637b5a00f386ae850c0e3d69c2b8423ce473c2b6c5be9f24b8bc

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript, which is often used to exploit PDF vulnerabilities or redirect users. The document also features a large number of external URIs, many pointing to disposable domains, suggesting a link farm or phishing campaign designed to lead users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9908

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://garglob.ru/uplcv?utm_term=48+laws+of+power+pdf+download PDF link annotation
- https://96662888.com/editor_upload/file/vitobijifezen.pdfIn PDF document text
- http://kamnitikamini.si/upload/files/28002967586.pdfIn PDF document text
- https://chupwo.com/editor_upload/file/27139216135.pdfIn PDF document text
- https://phucatgarment.com.vn/ckfinder/userfiles/files/bafinomonidubaviduti.pdfIn PDF document text
- http://www.vikingmaterials.com/img/77740461757.pdfIn PDF document text
- http://maiodi.com/userfiles/files/26210713452.pdfIn PDF document text
- http://teusz.pl/UserFiles/file/57204077490.pdfIn PDF document text
- https://apc-algercentre.dz/ckfinder/userfiles/files/pelukesejux.pdfIn PDF document text
- https://rosanaalvarracin.com/userfiles/file/nomajupiw.pdfIn PDF document text
- http://cameralehiep.com/hinhanh_fckeditor/file/62473897825.pdfIn PDF document text
- https://brincandoeaprendendo.com/fotosempresa/files/27374656109.pdfIn PDF document text
- https://masihpt2.com/contents/files/pafubuluvoxasenuwinazag.pdfIn PDF document text
- https://adrfarysz.pl/userfiles/file/tagokob.pdfIn PDF document text
- http://greenhere.cn/upload/ckimg/files/202109131850374623.pdfIn PDF document text
- https://codefon.hu/js/ckfinder/userfiles/files/11639743917.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16145345c09431---41287861699.pdfIn PDF document text
- http://zap-interactive.com/uploads/files/dewipurutepam.pdfIn PDF document text
- http://inwallendorf.de/userfiles/file/dopodagusexarejiw.pdfIn PDF document text
- http://iweldbot.com/ckfinder/pho/files/demezawevuvoxalirona.pdfIn PDF document text
- https://cpsguffanti.it/uploads/file/39833549745.pdfIn PDF document text
- https://nilsahost.com/calisma2/files/uploads/demifotital.pdfIn PDF document text
- https://alwillislifecenter.org/ckfinder/userfiles/files/83536847854.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/161447c2932196---23393637268.pdfIn PDF document text
- http://guanzhuli.com/userfiles/file/35776591235.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/kagadewumabudodujiwa.pdfIn PDF document text
- http://geometramaurotozzi.it/userfiles/files/66255942414.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_off0000cd87.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD87	16908 bytes
SHA-256: `7eaec24997583bdafea014fc7c327906c87bcb9c4f65dbb27134295af4626344`
`font_01_sfnt_off0000f8a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8A0	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000110b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x110B7	10576 bytes
SHA-256: `9f08dff19744b9e1fd5b57971692d99274f042a8cda5b291b38176c702755e41`

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