Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ece6e530cf9fa16…

MALICIOUS

PDF

80.2 KB Created: 2021-09-08 08:22:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 4ca7a1466c6c1ae58712f99226c02ff4 SHA-1: 7953c8e00b5d27cf45b25324f2053433c44a7230 SHA-256: 2ece6e530cf9fa16871588ab5c066a647b8ef152a10868450c9d7b94b1c09d73
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document functions as a link farm, containing numerous URLs pointing to various domains, many of which are associated with compromised WordPress sites or disposable hosting. These links are likely used to distribute phishing content or download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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.
  • 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://garglob.ru/uplcv?utm_term=fisher+and+paykel+614l+french+door+fridge+manual PDF link annotation
    • http://bentleyplemtech.ru/userfiles/file/vozajaxofiwukebalopatez.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/73979667030.pdfIn PDF document text
    • https://muzpony.de/obrazki/file/fenulub.pdfIn PDF document text
    • http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95775544724.pdfIn PDF document text
    • https://selispin.com/calisma2/files/uploads/pirakuluwudizetinurujusuk.pdfIn PDF document text
    • http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f333998838---bogifoganowipigoxebuz.pdfIn PDF document text
    • http://ulsantour.com/FileData/ckfinder/files/20210727_BC8368D9CB0880D4.pdfIn PDF document text
    • https://csam-villepinte.org/uploads/images/file/35809683351.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16081093d98fef---11855308066.pdfIn PDF document text
    • http://yishiweb.com/upfiles/files/20210817_073045.pdfIn PDF document text
    • https://forumhrdbekasi.com/webroot/userfiles/files/fudofe.pdfIn PDF document text
    • http://105chers.netsociality.com/upload/files/wifefunuwekegukinezupot.pdfIn PDF document text
    • http://www.scsi.coop/wp-content/plugins/super-forms/uploads/php/files/83671634e84faae0cec09e4d416f0a01/22397586191.pdfIn PDF document text
    • http://kengosushionlineorder.com/uploads/files/78009693613.pdfIn PDF document text
    • http://zpkprzemysl.pl/ckfinder/userfiles/files/96848692126.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160744f5778067---10798599684.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df480b6a675---10274111480.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161217ec64986d---zigezewizerekuzerukud.pdfIn PDF document text
    • http://litho-and-co.fr/ckeditor/upload/files/60563346372.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/48100962399.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/sr4f12ag12mauk66bfqv66td14/zoxemox.pdfIn PDF document text
    • http://ourpreferred.com/userfiles/files/47384363929.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_off0000cfc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC7 11552 bytes
SHA-256: 25c8b50b2d73879c9be5e19099f244a80e973dd21fdb0ff7692ef96a8ca29303
font_01_sfnt_off0000ead7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD7 17700 bytes
SHA-256: da268205bde0949c71d07da145315c162d6bb04d57830013c523fd30b2f86651
font_02_sfnt_off00011932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11932 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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