Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d22d687f8068b3f…

MALICIOUS

PDF

37.1 KB Created: 2020-03-22 06:23:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f40c795db152e4f14464340d5dbceb48 SHA-1: 5591f519061041fd08b5e16a3644793c6d5eee91 SHA-256: 0d22d687f8068b3f39768b08302f993eabfb27228503190c628b3c106c8261cb
96 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a network of websites, potentially for SEO manipulation or to host further malicious content. While no scripts were explicitly extracted, the presence of numerous URLs suggests an attempt to redirect users to potentially compromised or malicious 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://grandtycoonlogistics.com/uploads/1/3/0/4/130477351/130477351.html#porter-cable+c2002+pancake+compressor
    • http://oxbowsandmeanders.com/uploads/1/3/0/6/130621502/laxanigixojug.pdf
    • http://interrelity.com/uploads/1/3/0/5/130588870/cf7a01e2b2d3568.pdf
    • http://www.alysebonline.com/uploads/1/3/0/7/130776110/ef73b59ea96b.pdf
    • http://www.thetimeshareadvocate.com/uploads/1/3/0/2/130272271/dugip.pdf
    • http://cclmobile.org/uploads/1/3/0/3/130379065/2003304.pdf
    • http://www.reddoorresale.com/uploads/1/3/0/6/130620874/zekanamav-temuxow-nowegez-ruvimu.pdf
    • http://mta-sts.mail.rajana.lt/uploads/1/3/0/2/130289638/sibilo-kobunasurupuve.pdf
    • http://431775997417950473.com/uploads/1/3/0/8/130874567/96f801.pdf
    • http://productorasesordeseguros.com/uploads/1/3/0/4/130488604/zolufapu_pifedopixojutaj.pdf
    • http://theperfectaccessory.org/uploads/1/3/0/6/130604922/de0a43328655.pdf
    • http://umstud.com/uploads/1/3/0/3/130323675/bakufivajada.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_off00006457.bin
113e00f244eb50e35f6882a8a88b520dcc8beaf9dc3d8d44bd858516f489067f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6457 9296 bytes

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