According to the ACAMS CAMS Study Guide (the 6th edition), one of the common methods of money laundering in the insurance sector is to purchase policies with illicit funds, overpay premiums, and then cancel or surrender the policies to receive refunds or payouts1. This allows criminals to move and disguise the source of their funds through the insurance company. Therefore, the regular withdrawals from the policy by the end of the month could indicate a money laundering scheme. Moreover, the FATF Guidance for a Risk-Based Approach for the Life Insurance Sector states that unidentified third parties depositing cash to the policy could also pose a high money laundering risk, as cash transactions are difficult to trace and third parties may act as intermediaries or nominees for the real beneficiaries2. Therefore, the insurance company should conduct enhanced due diligence on the policyholder and the third parties, and monitor the transactions for any suspicious activity.
References:
ACAMS CAMS Study Guide (the 6th edition), Chapter 2: Money Laundering Risks and Methods, page 671 FATF Guidance for a Risk-Based Approach for the Life Insurance Sector, pages 18-192

The Egmont Group's 100 Cases1, the Financial Action Task Force Typologies2, and FinCEN's SAR Activity Review3 are all sources of information related to money laundering trends, methods, and risks. They provide examples, analysis, and guidance on how to detect, prevent, and report money laundering and other financial crimes. The Wolfsberg Principles4, on the other hand, are a set of global standards for the prevention of moneylaundering in the correspondent banking and private banking sectors. They are not intended to provide information on money laundering trends, but rather to establish best practices and minimum requirements for financial institutions to comply with anti-money laundering regulations and expectations.
Egmont Group's 100 Cases1
Financial Action Task Force Typologies2
FinCEN's SAR Activity Review3
The Wolfsberg Principles4

According to the Anti-Money Laundering Specialist (the 6th edition) study guide, an AML training program should include the requirement that new staff receive training during employee orientation or shortly thereafter on bank procedures. This is because new staff need to be aware of the bank's policies and procedures for complying with the money laundering regulations, such as customer due diligence, transaction monitoring, record-keeping, and reporting of suspicious activities. Training new staff as soon as possible also helps to reduce the risk of human errors or oversights that could facilitate money laundering or terrorist financing.
ACAMS, CAMS Certification Package - 6th Edition, Chapter 5, page 143
ACAMS, CAMS Certification Package - 6th Edition, Chapter 5, page 144
Technical factsheet Anti-money laundering (AML) training: frequently asked questions, page 1

This includes civil monetary penalties, criminal prosecution, and other enforcement actions. These penalties can be enforced against foreign individuals, regardless of whether the individual is located within the US or abroad. Additionally, OFAC has the authority to impose sanctions on foreign countries and foreign individuals, including individuals and entities located outside of the US.