Malicious PDF — malware analysis report

Static analysis result for SHA-256 44567f399254e840…

MALICIOUS

PDF

73.5 KB Created: 2022-04-22 00:34:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: c924ab635349daf59bf1c9657660023c SHA-1: bd1a09a8e98a9be6ad304fde4acab6e707c5b0c8 SHA-256: 44567f399254e8408ecf9716d9c59bf0e4d5e6f1100145f4d3794b28fa413918
186 Risk Score

Malware Insights

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

The PDF file was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a phishing trojan. It contains a large number of external links, suggesting it's part of a link farm designed to manipulate search engine results or distribute further malicious content. The primary URL points to a page with a keyword related to agricultural revolution, likely a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cafij.co.za/YmrXLWy8?keyword=what%20are%20the%20advances%20and%20impacts%20of%20the%20second%20agricultural%20revolution PDF link annotation
    • http://ikmblansko.cz/files/upload/files/nisivurobemolofowotebese.pdfIn PDF document text
    • http://dlevitin.ru/fck_editor_files/files/83803193806.pdfIn PDF document text
    • http://dichvumucin.com/upload/ckupload/files/kixojodub.pdfIn PDF document text
    • https://sk-elektron.ru/ckfinder/userfiles/files/28366092289.pdfIn PDF document text
    • https://takixonit.weebly.com/uploads/1/3/4/8/134899966/tukofaroxemux.pdfIn PDF document text
    • https://nilapemapave.weebly.com/uploads/1/4/1/2/141255677/xibavuxumaf.pdfIn PDF document text
    • https://gisijenoxumo.weebly.com/uploads/1/3/1/4/131437849/5967830.pdfIn PDF document text
    • https://bupitagewiji.weebly.com/uploads/1/4/1/2/141260554/wibutote.pdfIn PDF document text
    • https://dakubotamijez.weebly.com/uploads/1/3/2/7/132712147/fimoxotan-pugadenazisi-fogemanule.pdfIn PDF document text
    • https://kevesotajomuvow.weebly.com/uploads/1/3/5/9/135959451/soxuzibobunix-ritakufiboboxo.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2022-3-23/20220323010817180707.pdfIn PDF document text
    • https://clubsecurite.fr/webroot/upload/files/kulubeva.pdfIn PDF document text
    • https://wapojopaboxijok.weebly.com/uploads/1/3/4/7/134747084/3072d43.pdfIn PDF document text
    • http://prime-standard.com/piceditor/file/piwezegejo.pdfIn PDF document text
    • https://angkagenap.com/contents/files/jozevo.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_off0000b76f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB76F 17608 bytes
SHA-256: a89157dc48b3331295aa78ad945c4aa55eeccd79a2567793f8f9691c187556a5
font_01_sfnt_off0000e582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE582 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fd99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD99 11224 bytes
SHA-256: ad37e259fd5b59335df4e5f1ad402d5a18b5b63d39c14132e6b72b033671736a

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