General
- Target k2ufvrj.exe
- Size 1.3MB
- Sample260924-yz43ysvxfz
- SHA256 84758bd05b0176a3863c213af33e4241afd386628ce34ba033ea510826af016f
- MD5 bdf8388558a6b0b9df439e539c90f3f9
- SHA1 f5976e41db0f1d928a51494d50ca7235132e033f
- SHA512 9b35ba1cd0f346337b48e3b6c48a7ae6aa81d7ef6dffcfe1dfe0c26b2f8d45c707f119907181cfbe2731ba63b84165846979fa1d65d1651fdaf9df84729faa07
- SSDEEP 24576:v0UIsPTwmovypTwM7FHZ4+mhciE7Us6fB/M2hNu:1TwmozMBa+mh3dsS/M2
- TLSH T11E5529307E5599BDC15BC07082468AA21E3130CB0F39B9FF459996393F7AAF52E3C658
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
k2ufvrj.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
k2ufvrj.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
C:\Users\Admin\CONTACT US.txt
- Do not panic; everything is going to be just fine. Just read carefully -- WHAT HAPPENED? <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Your network has been compromised by Fiasco. All files are encrypted using a military-grade AES encryption algorithm. A large amount of your sensitive data was exfiltrated. We usually download: - Personal data: CVs, DL, SSN, PII, NDA contracts, etc. - Financial information: documents, payrolls, bank statements, bills, transfers, budgets, annual reports, etc. - Customer data: contracts, PII, contacts, purchase agreements, etc. - Confidential: source code, trade secrets, technology, blueprints, documents, etc. - Work files, databases, legal documents, corporate correspondence. - Accounting data. - Audit reports. -- WHAT DO WE OFFER <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< If you want all your files back just the way they were And if You want to prevent your sensetive data ending up in the wrong hands, you need to contact us. Here's how: Download and install Session Private Messenger app from this url: https://getsession.org/download Make an account and send a message to this account id: 05e892bbd91a3812070997206ec5a92067006edf20bfa048dde4821c834264e008 Introduce youself using your unique Public Key. This is your Public Key: g1ds7 We use it to identify the unique key that was used to encrypt all your files. Use it to identify yourself. Wait for our reply and be patient. Do as we further instruct you. --- WHAT IF I DON'T CO-OPERATE? <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< We have the most powerful data leak site on the Internet. There are a lot of journalists, researchers and other hackers and criminals that would be interested in using your data for free. An incomplete list of risks you are facing in case of faluire to co-operate ( besides permanently losing all your files. ): - Fraud - Identity theft - Loss of customer trust and loyalty. - Damage to the company's reputation. - Legal consequences and compliance fines. - Financial losses and costs associated with data recovery. - Impact on competitive advantage and market share. - Breach of data privacy regulations and laws. - Disruption of business operations. - Reduced employee morale and productivity. - Potential for intellectual property theft. - Loss of trade secrets and proprietary information. -- KEEP IN MIND <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - No matter what the AI or the authorities say about this, there is only one way to get your files and that is through us. - You WILL get your files back. - Once you got your files, you will never hear from us or about this incident again. - Do not try to decrypt using third-party software. You will damage the files. - Do not report to the authorities. They don't care about you or your business.. - Do not hire a recovery company. They can't decrypt without the key and we made sure any other kind of recovery is impossible. - Do not hire a middleman. Speak for yourself. - Do Co-operate. -- WE HAVE DONE THIS COUNTLESS TIMES <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - Do as we told you and there will be no FIASCO. - This situation can be fixed very smoothly as long as you do as instructed.
-
https://getsession.org/download
Targets
-
- Target k2ufvrj.exe
- Size 1.3MB
- SHA256 84758bd05b0176a3863c213af33e4241afd386628ce34ba033ea510826af016f
- MD5 bdf8388558a6b0b9df439e539c90f3f9
- SHA1 f5976e41db0f1d928a51494d50ca7235132e033f
- SHA512 9b35ba1cd0f346337b48e3b6c48a7ae6aa81d7ef6dffcfe1dfe0c26b2f8d45c707f119907181cfbe2731ba63b84165846979fa1d65d1651fdaf9df84729faa07
- SSDEEP 24576:v0UIsPTwmovypTwM7FHZ4+mhciE7Us6fB/M2hNu:1TwmozMBa+mh3dsS/M2
- TLSH T11E5529307E5599BDC15BC07082468AA21E3130CB0F39B9FF459996393F7AAF52E3C658
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit
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Renames multiple (157) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Deletes itself
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Stops running service(s)
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Windows Command Shell
1System Services
1Service Execution
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Active Setup
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Active Setup
1Create or Modify System Process
1Windows Service
1Defense Evasion
Direct Volume Access
1Impair Defenses
1Indicator Removal
5File Deletion
5Modify Registry
2