Malicious PDF — malware analysis report

Static analysis result for SHA-256 732aa51b34fd98c9…

MALICIOUS

PDF

45.3 KB Created: 2020-06-03 05:17:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cc353c3834c4defd00a5fcc4edb9ea3 SHA-1: 01a2d174d757d6082854feac24b9519b1c5ed4ea SHA-256: 732aa51b34fd98c93e14bc4e885008c8287f1264b1ff777c0fc2e368bb89a9cc
96 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic, pointing to various PDF files and an HTML file. The document body explicitly mentions 'Kingdom of heaven full movie downloa', suggesting a lure to trick users into clicking these links. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent behind these links, likely to download further malware or redirect to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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 http://hostmaster.whawkins.uk/uploads/1/3/2/3/132302710/132302710.html#kingdom+of+heaven+full+movie+downloa
    • http://nationalchristianhousingconference.org/uploads/1/3/0/6/130639266/wiwesijopun.pdf
    • http://srbacs.com/uploads/1/3/0/4/130483736/351ef582aba2c16.pdf
    • http://rmtherapy.net/uploads/1/3/0/9/130969795/nugus.pdf
    • http://164.undesirable.us/uploads/1/3/0/9/130969645/wewuwideguduj.pdf
    • http://kennethingersoll.com/uploads/1/3/0/7/130739233/f35115e2f9e6f4.pdf
    • http://teammods.net/uploads/1/3/0/4/130477490/romuzugiduxogek_dusojiw.pdf
    • http://hostmaster.whawkins.uk/uploads/1/3/2/3/132302710/terms.html
    • http://hostmaster.whawkins.uk/uploads/1/3/2/3/132302710/dmca.html
    • http://hostmaster.whawkins.uk/uploads/1/3/2/3/132302710/policy.html
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://kudivex.files.wordpress.com/2020/05/nuzamutigutuloxul.pdf
    • https://neponaronav.files.wordpress.com/2020/06/60405336454.pdf
    • https://kebusura.files.wordpress.com/2020/05/96182022180.pdf
    • https://batakon.files.wordpress.com/2020/06/4471949862.pdf
    • https://toloduluxa.files.wordpress.com/2020/05/36542021195.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084e1.bin
b83b2cf6be74756902dfe0f5ecf3a66d64c8802a88a1d20153463acf55cbf167		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 10716 bytes

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