Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c614db21669ca37…

MALICIOUS

PDF

44.6 KB Created: 2020-04-28 21:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3c6493c17a902bcd521bce38f12c9b8b SHA-1: 3158a412d658531362fb77af3e93733afb64d07f SHA-256: 4c614db21669ca37ed69a3052ef7dd3b0497a8b8c807957092f732f838d81405
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The primary link directs to a page discussing 'Metformin hydrochloride 500 mg uses', suggesting a lure to a potentially harmful website. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, reinforcing the malicious intent. No scripts were extracted from this sample.

Heuristics 3

  • 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
  • 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://theclassyandjazzyboutique.com/uploads/1/3/0/8/130874468/130874468.html#metformin+hydrochloride+500+mg+uses
    • http://claireshouse.net/uploads/1/3/0/6/130605111/c51b3814b0ef532.pdf
    • http://harborsideportland.com/uploads/1/3/0/7/130776101/928a306a.pdf
    • http://texasfreedomcarriers.com/uploads/1/3/0/2/130272979/lifidak.pdf
    • http://vaquicklaunch.com/uploads/1/3/0/2/130271098/05bbd5efb.pdf
    • http://l4jministries.com/uploads/1/3/0/6/130640072/5230421.pdf
    • http://runstrong-ie.org/uploads/1/3/0/5/130540437/larobowufudexo.pdf
    • http://charmcityhempstore.net/uploads/1/3/0/6/130640126/2734178.pdf
    • http://bluewavecapitalfilms.com/uploads/1/3/1/4/131453068/sivokadefu-terekexebodobe-pebubewekedisaz.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_off00008894.bin
a8b017551833124b353fe37be41c7319fa51954b27957cc18d8e73cdf8bdc144		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8894 7704 bytes

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