PDF malware analysis — malicious · 0922b42fc8c7770b

MALICIOUS

PDF

68.8 KB Created: 2021-09-25 18:05:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 6f13434e4cdceb23213be523fa97fec2 SHA-1: 55cb1727fa2ff6f9271f95f1f6d11239b085ac52 SHA-256: 0922b42fc8c7770b5cb882000d9c134dc88eabd52b68dc8a4cc57f265edc777d

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as a phishing trojan. It contains numerous embedded URLs pointing to disposable domains, suggesting a link farm designed to distribute further malicious content or phish for information. The presence of external URIs and the 'link farm' heuristic strongly indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 5

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.
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=download+temp+mail+pro+apk PDF link annotation
- http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/fineworexefuwirenaje.pdfIn PDF document text
- https://rarahil.org.np/ckfinder/userfiles/files/97488038569.pdfIn PDF document text
- http://tg-focus.ru/userfiles/files/texanevafadupotoxax.pdfIn PDF document text
- https://pfollowers.com/ci/userfiles/files/91798203300.pdfIn PDF document text
- https://bharatceramics.in/ckfinder/userfiles/files/84865424584.pdfIn PDF document text
- http://gartenmessebau.de/uploads/files/70718952452.pdfIn PDF document text
- http://qkmedica.com/uploads/userfiles/file/zezobekamegozepedasu.pdfIn PDF document text
- http://lednotice.com/userData/board/file/litarufomikupolafu.pdfIn PDF document text
- http://www.autoservis-hubatka.cz/admin/upload/ww/file/6929998300.pdfIn PDF document text
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/35537979ec7a93f84acb65442e334ee3/25853763156.pdfIn PDF document text
- http://ramenzoni.eu/userfiles/files/39968746777.pdfIn PDF document text
- http://www.companyforte.com/imagenes/editor/file/69489145535.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-09-19/images/files/fejiful.pdfIn PDF document text
- http://lukoilmarine.com/ckfinder/userfiles/files/gosanomarabokivevuladivir.pdfIn PDF document text
- https://nezrenpin.com/calisma2/files/uploads/69138164477.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/2ba32b337b803b17699254d80cb866f9/fabujuxorizug.pdfIn PDF document text
- https://eijo.in/ckfinder/userfiles/files/senalefevapemuvogofi.pdfIn PDF document text
- http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/23564414078.pdfIn PDF document text
- http://connect-event.fr/ckfinder/userfiles/files/91460486801.pdfIn PDF document text
- https://vozilasavozacem.rs/files/mapejefif.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_off0000aef7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEF7	10564 bytes
SHA-256: `b8a15ee02f1d564b45e202ce6335991c22e32c8e303d6d06d24ff35b0e2ee3db`
`font_01_sfnt_off0000c704.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC704	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000df16.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF16	15268 bytes
SHA-256: `7459a541f398cf5f705a447df6bb2cf3238f1ac14bdebe0a78807816feb4d000`

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