Wire stripping is the process of removing or altering the identifying information associated with a wire transfer to make it difficult to trace the origin or destination of the funds. This technique is commonly used in money laundering schemes to conceal the illicit source of funds and avoid detection by authorities or sanctions screening systems. In this case, the bank's operations team deliberately removed the reference to the sanctioned company from the wire transfer message, thus violating the FinCEN "Travel Rule" and facilitating the evasion of sanctions.
References:
Wire Stripping in Anti Money Laundering Parlance
Wire Transfer Red Flags: Understanding Money Laundering and Fraud Risks Wire Stripping

A suspicious transaction report (STR) is a document that financial institutions must file with the relevant authorities when they detect or suspect any activity that may be related to money laundering, terrorist financing, or other criminal offences. An STR should include the details of the customer, the transaction, the reason for suspicion, and any other relevant information.
One of the indicators of suspicious activity is the use of financial instruments, such as checks, money orders, or cashier's checks, that are drawn on other institutions and deposited in amounts under the currency reporting thresholds. This may suggest that the customer is trying to avoid the detection and reporting of large cash transactions, which is a technique known as structuring or smurfing. Structuring is illegal and may indicate that the customer is laundering money from illicit sources or evading taxes.
Another indicator of suspicious activity is the use of financial instruments that are sequentially numbered, meaning that they have consecutive serial numbers. This may suggest that the customer has obtained the instruments from the same source or issuer, and that they are using them to launder money or finance illegal activities. Sequentially numbered instruments may also indicate that the customer is involved in fraud, such as check kiting or counterfeit checks.
Therefore, if a bank conducts a quarterly review on a retail customer's account and finds that the customer has made a number of large deposits of financial instruments drawn on other institutions in amounts under the thresholds, and that the instruments were sequentially numbered, the bank will most likely file an STR. This is because this activity does not fit the customer's historical profile, and it raises a high level of suspicion that the customer is engaged in money laundering or other criminal activities.
References:
* CAMS Study Guide - 6th Edition, Chapter 4, Section 4.2, page 108
* Answers to Frequently Asked Questions Regarding Suspicious Activity Reporting and Other Anti- Money Laundering Considerations, Question 5, page 7
* Anti-money laundering - handling suspicious activity, Section 6.3, page 3
* Tell us about suspicious activity that may be linked to money laundering, Section 3, page 1

Explanation
Money laundering can have serious consequences for financial institutions. They may face increased investigation costs and fines from regulators and law enforcement agencies for failing to detect or prevent money laundering activities. Additionally, money laundering can result in a loss of profitable business as customers and counterparties may no longer want to do business with the institution due to its reputation for being associated with illicit activity.
Reference: Certified Anti-Money Laundering Specialist (CAMS) Study Guide, 6th Edition, page 76.