Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ddda39b3303f10…

MALICIOUS

PDF

83.1 KB Created: 2021-06-06 04:37:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a9a68267a060686dfada7a739c1647e7 SHA-1: 63d3776e1128c6341230014dcb4ec7aaf526579b SHA-256: 32ddda39b3303f1045c1ed55e5b207c0f93d0024bce31b2a7556465ba3ff2c8e
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The ML classifier strongly indicates maliciousness, supported by multiple heuristics flagging the PDF as a link farm hosted on compromised or disposable domains. The presence of embedded URLs, including one pointing to a compromised WordPress upload, suggests the document is designed to redirect users to malicious content or facilitate further compromise. No scripts were extracted, but the overall structure and URL findings point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pixomot.ru/uplcv?utm_term=how+much+notice+period+for+resignation PDF link annotation
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d0f622d8e---nelusagu.pdfIn PDF document text
    • https://almondzwealth.com/administrator/imagetemp/file/41802190006.pdfIn PDF document text
    • https://smartcirclegroup.com/userfiles/file/bawukanexuwowubiwil.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9f92253afa---9506356579.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1609210250a278---guwusafisos.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90fab1a99f---nabezol.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aabb3e6853d---23245057074.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16074831fa503c---wanoxepegemijiluko.pdfIn PDF document text
    • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/n5nreeq0mul00hc18p1ms9f6hf/55930130015.pdfIn PDF document text
    • http://phuocthuan.vn/images/pic/file/5051878671.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d17a56d9c4---67597677991.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079eac2e98d4---70297364464.pdfIn PDF document text
    • http://dancedynamicsla.com/clients/38740/File/zaminefujirefapunini.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16090abca7290c---79990119345.pdfIn PDF document text
    • http://jucal.es/images/file/fobuvixolikekibegidum.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/a568c72c5a1511046669808363f73ec0/jogugozujatama.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/10a96f911398edaaceb9d5fb45c64e77/fisixe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3D 5472 bytes
SHA-256: 55be588242188319004aac1ac769cea5abc8e950e25e71d34f9d5ae5ef693a41
font_01_sfnt_off00010cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CBE 10572 bytes
SHA-256: 4e90abff0e36973cfc34c30b7d94e1951634be51fa69bf6cdcff12b4df998485
font_02_sfnt_off0001309d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1309D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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