Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d040bccd7d61708…

MALICIOUS

PDF

86.3 KB Created: 2021-06-27 02:00:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d1158a964ed6c8da7c9fa4403210a81c SHA-1: e2d80c6b01144c4a22f488885fc48383b7ff8547 SHA-256: 0d040bccd7d6170860aa50f3a183bddde11b260aff8dad05225fce12bf91b293
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of an advance-fee scam. It contains numerous links to external PDFs hosted on compromised WordPress sites, suggesting a link farm designed to distribute malicious content. While no scripts were directly extracted, the PDF structure and heuristic firings indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://master.plus/wp-content/plugins/super-forms/uploads/php/files/63262da0013e2a57535cb6004094515d/gazuketejiponopolepadit.pdf In PDF document text
    • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/23013d35ad584ef0703274c75ed0d215/dodedajapipipiwusisafet.pdfIn PDF document text
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/5o2aknu9g8m7qruuq3caqn9871/64407963224.pdfIn PDF document text
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/d4c6cbp5tmd7a7jf1tnch8julu/xeliv.pdfIn PDF document text
    • https://xn--arbeitskndigungsrecht-best-5zc.de/userfiles/file/99929212153.pdfIn PDF document text
    • http://extintoresorigen.com/images/editor/gajejofuz.pdfIn PDF document text
    • http://artgraf24.pl/userfiles/file/nalonurirenan.pdfIn PDF document text
    • http://www.minaakshimajumdar.com/fckimages/file/20477739273.pdfIn PDF document text
    • http://www.pranabkumar.com/fckimages/file/1329142737.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16075e8bd7972a---67077790151.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16076dff40cdc9---fatipesarer.pdfIn PDF document text
    • http://thedreaminitiative.org/Content/Admin/uploads/files/23566917592.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095e099d11bb---xibaxas.pdfIn PDF document text
    • http://lctrading-gmbh.com/ckfinder/userfiles/files/83227629138.pdfIn PDF document text
    • http://indagosrl.it/userfiles/files/38066621657.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/cr7g9p4qec2s55g3pdghbksj8h/bigidi.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607247ebea6fc---vijikefedutokedutavewos.pdfIn PDF document text
    • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/siqnl5a2kp7bv0ki7dtfqs32s3/lalox.pdfIn PDF document text
    • https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075eccd4670b---1404309040.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861119417a9---90188442799.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b06fc3ec744---71246545761.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/9mv47ipcd72p0e80qnglfqttf0/zudateporopujebif.pdfIn PDF document text
    • https://baongochoa.com/upload/file/lepubomajovekij.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=foul+smelling+stool+with+bloodPDF 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_off0000f087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF087 10736 bytes
SHA-256: 843487fcca15bd5220701e78c6186c60366ac459ca5727deb473d1f7ad20187b
font_01_sfnt_off000108ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108CE 16556 bytes
SHA-256: a28622c3fa325f01f040b36f1731bda9a93a8a5bbf17d969b84d1cc781fc2b53
font_02_sfnt_off000133ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133EC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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