Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e9f6540fd168ce1…

MALICIOUS

PDF

83.7 KB Created: 2021-06-26 16:36:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f7ec4867cd6402b5da18f068e28ea109 SHA-1: 7c7943b5d0f9f235fcec48899db62dc6afc02950 SHA-256: 6e9f6540fd168ce1721ef1dc65257103ffd25c9515ee7e61c42dac36065882e5
224 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded JavaScript and numerous external links, many pointing to compromised websites or disposable hosting. The critical heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document's primary purpose is to solicit sensitive recovery information from the user. The embedded JavaScript likely facilitates the redirection to these malicious links or aids in the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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
  • 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://catamma.ru/uplcv?utm_term=how+to+add+line+for+signature+on+word PDF link annotation
    • https://jodhpurtravels.com/nbloom/fckuploads/file/laxexok.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb714e3650---18697747432.pdfIn PDF document text
    • http://maxidmum.com/images/upload/fck/file/33397815744.pdfIn PDF document text
    • https://vili-al.com/uploads/wysiwyg/files/wufotenove.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/de75e4d530cfdfa00375a01b8b09baae/bopup.pdfIn PDF document text
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083712ca57a9---19285061113.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/6ea3eeeac67856860716088b7b2b9e85/23453466781.pdfIn PDF document text
    • https://plasy.com/uploads/file/45292605367.pdfIn PDF document text
    • http://epoch-making.jp/js/upload/files/papufinujuwunimoxumi.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/k7q80iishv3askos5tt9815tt6/79315175545.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/f3e4644d02757ed131323febb99679b7/3589399317.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/ddd12b74e5e14be215e03fac07ff82d6/83779349187.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160aa7d116b78f---7261530492.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/vonurubatewareto.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/979u6tihfv5cspkr8medrllagd/tibuzefeb.pdfIn PDF document text
    • http://hosungtour.com/FileData/ckfinder/files/20210529_A10AA49D0884DDCE.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/rlbe6a54f8chr1mm6qf9gqf19b/pibumonafesaw.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607a824a3a529---tegixapebalukifuwarewa.pdfIn PDF document text
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/3abc3ef50b5700f937dc84abcd4040cc/30099878344.pdfIn PDF document text
    • https://go2germany.ru/files/file/jabiluvuj.pdfIn PDF document text
    • https://lensprovn.com/ckfinder/userfiles/files/78996008769.pdfIn PDF document text
    • http://penzionriverside.cz/files/file/30419080913.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160847dfe76171---70119968537.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.

FilenameKindSourceSize
font_00_sfnt_off0000e50e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50E 16868 bytes
SHA-256: 6316881e84e61f07d33c3e47c0d2249862096ce8cc6c74903525a866d0d5b650
font_01_sfnt_off0001113c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1113C 10704 bytes
SHA-256: 09dcd074775c06551a45bf69858e897e6646de4e7a1adb78a635c95f2c686db0
font_02_sfnt_off000129bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129BC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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