PDF malware analysis — malicious · 12be622d2af471a9

MALICIOUS

PDF

70.9 KB Created: 2021-10-02 10:46:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22

MD5: 5624277169e78e174674e3c012f0232a SHA-1: 5d447cd197bfe6ad16ea853f57c82b0cb6bda0b6 SHA-256: 12be622d2af471a917dc9acfbb6d73e1a2da33e324eb468661dbda33714c47ff

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains numerous embedded URLs pointing to potentially malicious domains, suggesting a phishing or credential harvesting campaign. The PDF structure and embedded links indicate an attempt to redirect users to external sites, likely for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9975

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://krisoc.ru/uplcv?utm_term=small+pdf+merge+software+free+download PDF link annotation
- https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/29313328640.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/rh5cf3j1cumj6ft1i17duclqe4/57444119078.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/nerovomi.pdfIn PDF document text
- http://omgmediatank.com/userfiles/files/vamezon.pdfIn PDF document text
- https://softwebstar.com/shop/userfiles/file/lumafobav.pdfIn PDF document text
- https://fenixfalt.com/userfiles/file/66454566188.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/vizuxatosedagof.pdfIn PDF document text
- https://rainbowprinter.com/app/webroot/files/file/guxomapeduxegaditir.pdfIn PDF document text
- http://uitetenindex.nl/images/uploads/pokaguguperunupop.pdfIn PDF document text
- http://rotang.net/userfiles/file/zolebopaxolubipow.pdfIn PDF document text
- http://roosprommenschenckelfoundation.nl/userfiles/file/dekitavewujanipifepavesow.pdfIn PDF document text
- http://thietkewebsite.btccorp.vn/uploads/files/70964681943.pdfIn PDF document text
- https://cfi-registration.amyhalter.com/buzzboxgift/img/userfiles/files/zepanetifu.pdfIn PDF document text
- http://ourgans.org/userfiles/files/58461435879.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/geriwuti.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614a2690eb2c4---wezefuwizasorotef.pdfIn PDF document text
- http://studiomanzella.com/userfiles/files/82904045703.pdfIn PDF document text
- https://officialbacknumber.org/editor_up/79835986948.pdfIn PDF document text
- http://gocep.org/data/userfiles/files/zutegejejokuvevev.pdfIn PDF document text
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/16895385904.pdfIn PDF document text
- http://csc0516.com/userfiles/file/20210927085207_mjzxbj.pdfIn PDF document text
- http://wib24-admin.de/uploads/file/27618986585.pdfIn PDF document text
- https://unitytradefze.com/ckfinder/userfiles/files/jetukuxatid.pdfIn PDF document text
- http://studiogallerani.it/userfiles/files/pifulupif.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_off0000b28b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB28B	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000caa2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCAA2	10908 bytes
SHA-256: `5c8c2bf36361b66cbf8ef975037b2910fe070210111ee1813b9ca511958e73e1`
`font_02_sfnt_off0000e3b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE3B6	16436 bytes
SHA-256: `c276cd024b49f7cb8ca36d166bacb03e9696582006a674cd94b9a26c4eb4ce77`

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