PDF malware analysis — malicious · f529af3159905f06

MALICIOUS

PDF

79.1 KB Created: 2021-09-12 15:27:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14

MD5: 565569832b0a4a5becd4f6465d3f66c8 SHA-1: 43596297aeb397b77147b4b2825d733e98053eb7 SHA-256: f529af3159905f0643d8b52ed1f9178cdf95be7514d6f1c7e94801b4527f5add

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and is flagged as malicious by ML classifiers and ClamAV. It also exhibits characteristics of a link farm, with numerous links to potentially disposable hosting, suggesting an attempt to redirect users to malicious sites. The embedded JavaScript likely facilitates the redirection or execution of further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9958

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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 http://ideviceplus.be/app/webroot/files/userfiles/files/45302298318.pdf In PDF document text
- http://propertiesforrent.com/userfiles/file///gotawazosamiwabiw.pdfIn PDF document text
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139304b35b29---sidobipigus.pdfIn PDF document text
- https://euronet.stonavka.cz/webpagebuilder/ckfinder/userfiles/files/65860371179.pdfIn PDF document text
- https://onlineadda.organicemall.com/ckfinder/userfiles/files/kexoreninopato.pdfIn PDF document text
- http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/41925272784.pdfIn PDF document text
- https://satesayap.com/contents/files/21105807158.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/62830489093.pdfIn PDF document text
- https://immsac.pe/sgi_userfiles/userfiles/files/34062351537.pdfIn PDF document text
- http://dobre-jaja.com/Upload/file/woriworonunakakak.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133b43524fcd---pewibiwoje.pdfIn PDF document text
- http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/viwuzepif.pdfIn PDF document text
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/44505506838.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/dapisototiliraxuwupar.pdfIn PDF document text
- https://thefertilizergranulator.com/d/files/jujogetaz.pdfIn PDF document text
- https://kaptenhoki.net/contents/files/56763442750.pdfIn PDF document text
- https://ozanetiket.com/TasarimAcarnet/serhali/upload/files/kutelagaramir.pdfIn PDF document text
- http://fine-cottage.ru/userfiles/file/17055290443.pdfIn PDF document text
- http://okun.su/upload/file/96158299721.pdfIn PDF document text
- http://xy-interior.com/uploads/files/202109120100309245.pdfIn PDF document text
- http://frutapacargentina.com/ckfinder/userfiles/files/92280204521.pdfIn PDF document text
- http://kpotplace.com/uploads/files/savegalinad.pdfIn PDF document text
- https://hetodon.com/fckeditorfiles/file/30381905617.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=redmi+note+7+pro+next+updatePDF 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_off0000d05a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD05A	10636 bytes
SHA-256: `4226926143ba3c57b0e2cac27b688b8e68bf4113358d50e641486cd28a1809a4`
`font_01_sfnt_off0000e8b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE8B4	17772 bytes
SHA-256: `3f8d3246638ddf2d73a264bb5f3722749993a056dc2b695a3ade89dc28108dd5`
`font_02_sfnt_off0001171c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1171C	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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