Malicious PDF — malware analysis report

Static analysis result for SHA-256 050c6aab7467321e…

MALICIOUS

PDF

39.9 KB Created: 2020-04-22 08:29:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5218a2732985f359f647f4f2859521c2 SHA-1: 9d604bed043ae75a3ebcfc285b988e1386fbf5ae SHA-256: 050c6aab7467321ebcd54e02a95075424de73196a0b096623a8015b9e0d351f1
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicating a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of numerous external URLs suggests the document is designed to redirect users to potentially harmful content or further stages of an attack. The document body contains garbled text and metadata, but the primary malicious indicator is the extensive link farm.

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://roadwaytrafficcontrol.com/uploads/1/3/0/4/130488096/130488096.html#movies+2018+new+bollywood
    • http://www.paulyspalsdaycare.com/uploads/1/3/1/3/131382141/wugebalafev_mezin.pdf
    • http://sheridanroofing.org/uploads/1/3/1/4/131438180/3f7ab346844.pdf
    • http://deelydrop.com/uploads/1/3/1/6/131607013/tubatetuxum.pdf
    • http://stefanbargheer.org/uploads/1/3/0/6/130604249/8524270.pdf
    • http://mcmoassociates.com/uploads/1/3/1/4/131437967/5927337.pdf
    • http://glendalepoolcleaners.com/uploads/1/3/0/9/130969110/9574b2a1881.pdf
    • http://mayaandmadison.com/uploads/1/3/0/7/130775567/47bdbcfd.pdf
    • http://lorrainedidit.com/uploads/1/3/1/3/131380171/supegabu-jurupuseb.pdf
    • http://spanakbun.com/uploads/1/3/0/8/130814535/8a878cff9e.pdf
    • http://resolutiontraining.net/uploads/1/3/0/5/130539295/tajebebol.pdf
    • http://frankpanza.com/uploads/1/3/0/4/130477663/gafatelofivor-makorezis-xenewono-gefeg.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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007458.bin
2218d0a9e8cd3cc1513b54d31339792c03fbc9e74d6eafd84d2599db00967906		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7458 8092 bytes

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