Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed2de192dc7e0cb…

MALICIOUS

PDF

95.5 KB Created: 2021-07-27 21:12:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 85ecd1732dd6524d6e2a6b2f95e7d7fe SHA-1: 4e07d852c6ab827c73a2d327b9ce174e4ad623d3 SHA-256: 6ed2de192dc7e0cb396e73ec6185c5e7f0b2f2008d8d254a8ff41c142448b9d5
156 Risk Score

Malware Insights

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

The PDF contains a link farm directing users to multiple external URLs, some of which are hosted on compromised CMS platforms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, limiting the analysis of specific execution methods.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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
  • 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://lotteppta.com/beta/assets/file/72210064211.pdf In PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fceba099652---duxafowagonuja.pdfIn PDF document text
    • http://amadpich.com/userfiles/file/73664587363.pdfIn PDF document text
    • http://anm-av.de/uploads/files/luven.pdfIn PDF document text
    • http://anthonyjcincottalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64583988537.pdfIn PDF document text
    • http://varanini.pl/userfiles/file/xutewalilubivudid.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16072409892dac---tetikizuzexerisedisetase.pdfIn PDF document text
    • https://medsplus.us/admin/images/file/siwekatamoromirawekule.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/uuc13pg0b4m7h6opn7aq4ibrdq/jukibik.pdfIn PDF document text
    • http://pwr-tech.ru/userfiles/file/kugubatu.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096ff77c6df5---10264499763.pdfIn PDF document text
    • http://angelofthewinds.org/ckfinder/userfiles/files/dukinulakexepaluguvibotu.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/acf21f24429ff453c1b2041b9463515d/pilupugadugekaxa.pdfIn PDF document text
    • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607b41f80e40f---80365112506.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609afea9c6b27---74917282129.pdfIn PDF document text
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/168c5ea09c0da727c87b5b21ec52b990/bufevepalinutovuz.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160827928f3be3---miratemigagexezadofu.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cb842124e---kebimabirofilitife.pdfIn PDF document text
    • https://aterhesseg.com/up_image/file/65166396173.pdfIn PDF document text
    • http://uniqueaddress.in/crm/files/nanerarebapirepomubufa.pdfIn PDF document text
    • http://sanarina-coaching.de/ckfinder/userfiles/files/86059662532.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/48217676980.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=ngc+us+coin+price+guidePDF 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.

FilenameKindSourceSize
font_00_sfnt_off00011374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11374 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00012b8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B8B 10460 bytes
SHA-256: c26d853b81a951778fbcc50042c0df68ca4fbcc5824f2e9ab233e7c49e004646
font_02_sfnt_off00014327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14327 17060 bytes
SHA-256: a3d4c7c2a759d354ce46bbb03d85f78909d21d398fa72baa04ddfda12f05f68c

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