Malicious PDF — malware analysis report

Static analysis result for SHA-256 60c5ccf302909397…

MALICIOUS

PDF

108.6 KB Created: 2021-07-07 06:30:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ac9d4dcd6deda6f3d90f3a76ca212ba7 SHA-1: f2ffe42fcda0a219bdb0867d696a2c7df1698abf SHA-256: 60c5ccf302909397de0501a4c0974eb4d4c6017c41a4f3966210a1dc4d93c4cc
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous malicious links suggests the primary goal is to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

Heuristics 5

  • 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.
  • 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://pistant.ru/uplcv?utm_term=the+manager+path+pdf PDF link annotation
    • http://ctyrkolky-gamax.cz/data/dokumenty/73508929187.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/3f724635115b39760bfe927c79e39a26/91648815236.pdfIn PDF document text
    • http://nousgarage.com/userfiles/file/64711529818.pdfIn PDF document text
    • https://ckd-otto.com/contents//files/83220810443.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/7d08333a7ab9a54ffc8506cac55931cc/48336059414.pdfIn PDF document text
    • https://eatorhours.org/e-bussiness/fckimages/file/46739308160.pdfIn PDF document text
    • http://allseasonsbanquet.com/clients/868236/File/52801615913.pdfIn PDF document text
    • http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608e503841612---3433096646.pdfIn PDF document text
    • http://anbao.vn/uploads/userfiles/file/74436013216.pdfIn PDF document text
    • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/c51f46c03422e2f56b243682f5de632e/soremerapiwawobaji.pdfIn PDF document text
    • https://interior-mark.com/ckfinder/userfiles/files/davulobabisepazigabo.pdfIn PDF document text
    • http://plncse.hu/php_data/file/wojanibamowo.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/3ff632ff331f6444e335f17ce2615d03/nolagotomagilixonumejokis.pdfIn PDF document text
    • http://bora.su/ckfinder/userfiles/files/60178284671.pdfIn PDF document text
    • http://bmhs71.com/clients/c/c9/c97ff408e01126d63256cf68004d6641/File/zitepufefigozidinumot.pdfIn PDF document text
    • http://nessium.net/userfiles/file/73590323044.pdfIn PDF document text
    • https://astek-telem.fr/userfiles/file/pewupug.pdfIn PDF document text
    • http://stark-tools.ru/images/uploaded/delasalisavuwizudexub.pdfIn PDF document text
    • http://abwferrellpkwy.com/uploads/files/gurevux.pdfIn PDF document text
    • http://decaiyun.com/upload/file/210624054856558019jin1fitypv4x.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16081242f56236---zabapedobelifiwemonib.pdfIn PDF document text
    • http://cdmvt.cz/sites/default/files/19287332445.pdfIn PDF document text
    • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160961aa449032---36477897170.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_off00014607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14607 17912 bytes
SHA-256: 586fac548d4d5979fa3b41939bbbd0f2157b887d2ee98cffbdd3b6a66964cc3a
font_01_sfnt_off00017450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17450 10484 bytes
SHA-256: f95c5e2459956233c6eedac0ef8fcd932f1c66815577d9050ad3b2f036a46f08
font_02_sfnt_off00018bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18BB2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1