Malicious PDF — malware analysis report

Static analysis result for SHA-256 2091750ec7558300…

MALICIOUS

PDF

65.2 KB Created: 2021-09-05 21:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 8caa007330f4e7baea5e4a4531db5765 SHA-1: 26b1f0c09cbf07895598f846a56b6d0009823ec9 SHA-256: 2091750ec755830021b1eb15580d9f7718453ba8f31ac245261396796b93ae51
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and numerous external URIs, many hosted on compromised or disposable domains, indicating an attempt to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojan distribution scheme. The embedded JavaScript likely facilitates the redirection or execution of further malicious actions.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4625

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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
  • 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://inwebjor.ru/uplcv?utm_term=distributive+property+3rd+grade+pdf PDF link annotation
    • http://libron.pl/fckupload/assets/file/59694277416.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1610ad3e3ab33a---mugejaderufefux.pdfIn PDF document text
    • https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/75903521760.pdfIn PDF document text
    • https://tumujerrusa.com/userfiles/44462067307.pdfIn PDF document text
    • https://nicklason.se/ckfinder/userfiles/files/39950059536.pdfIn PDF document text
    • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/1495793058.pdfIn PDF document text
    • http://qianlong99.org/ckfinder/userfiles/files/37639254855.pdfIn PDF document text
    • http://www.psoealora.es/ckfinder/userfiles/files/18614661895.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/file/ginez.pdfIn PDF document text
    • http://elijasprojekts.lv/files/file/62235027559.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/pgkaapisj9c2c7s5fm2559qpja/xexodigamik.pdfIn PDF document text
    • http://alexhoffordphotography.com/temp/files/file/62835545094.pdfIn PDF document text
    • https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/tunekazagut.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b3d091d67ccd0b7533e6a0b90c227fdd/12667149902.pdfIn PDF document text
    • http://dorapeyzaj.com/userfiles/file/13488446076.pdfIn PDF document text
    • https://nepalaviationmuseum.com/userfiles/files/gafoxuxiripefogajafufe.pdfIn PDF document text
    • https://wrd13.com/force/file/jaxujevenuwunorixabizu.pdfIn PDF document text
    • http://wsm.hk/images/files/vunusejumoz.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/a9e94f0aec7c4ded6f01a9d93116d5e6/68307642051.pdfIn PDF document text
    • http://toyteepee.com/uploadfiles/file/210719002639626258f9480f.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc573ba2dd---39567419043.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/zivodejekom.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1608154439bee6---funeravuzasu.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d04d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD04D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE864 11116 bytes
SHA-256: 7b3f2be6a95d1d35394867342a1836dfcb4e8226b6bd1cddea34f7e08f28dfa2

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