surtr

General

Target

surtr.exe
Size

320KB
Sample

211224-hx8qcscee3
MD5

e6fc190168519d6a6c4f1519e9450f0f
SHA1

af2080ddf1064fb80c7b9af942aaabf264441098
SHA256

8199ef63e0058be6217ec8392258fbe7fac9fb556b8e87f40a3a45835f424980
SHA512

4522d4e3f8a38dbceb30d09ea04ceeacc33bb273d702d706be68405cd4c9492f862f4ae741f4e0140b54203b3db521e96663f9757bb241b1ac63c1eda3ebb6ba

Score

10^/10

Malware Config

Extracted

Path

C:\ProgramData\Service\SURTR_README.txt

Ransom Note

What happened to your files? Unfortunately, your server was compromised, using a security hole in your server. All your files are encrypted with a military algorithm . in order to contact us you can email this address [email protected] use this ID( Mg7XhdqAg5vABo ) for the title of your email. if you weren't able to contact us within 24 hours please email : [email protected] Only we can decrypt your files. Please do not contact separate fraudulent sites. You can use freeand even paid software on the Internet, but it is uselessand will cause you to lose filesand timeand money.

Emails

[email protected]

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\SURTR_README.hta

Family

surtr

Ransom Note

SurtrRansomware OOPS ALL YOUR IMPORTANT FILES HAVE BEEN ENCRYPTED AND STOLEN !! Notice : There is only one way to restore your data read the boxes carefully! Attention : Do Not change file names. Do Not try to decrypt using third party softwares , it may cause permanent data loss . If you do not pay the fee within one month , your important files will be published in our public belog . Do not pay any money before decrypting the test files. You can use our 50% discount if you pay the fee within first 15 days of encryption . otherwise the price will be doubled. In order to warranty you , our team will decrypt 3 of your desired files for free.but you need to pay the specified price for the rest of the operation . How To Decrypt : Your system is offline . in order to contact us you can email this address [email protected] use this ID (Mg7XhdqAg5vABo) for the title of your email . If you weren't able to contact us within 24 hours please email : [email protected] If you didn't get any respond within 48 hours use this link (Not Available Now).send your ID and your cryptor name (SurtrRansomwareUserName) therefore we can create another way to contact you as soon as possible

Emails

[email protected]

Extracted

Path

C:\ProgramData\Service\SURTR_README.txt

Ransom Note

What happened to your files? Unfortunately, your server was compromised, using a security hole in your server. All your files are encrypted with a military algorithm . in order to contact us you can email this address [email protected] use this ID( T3ygNWO3fdq7nC ) for the title of your email. if you weren't able to contact us within 24 hours please email : [email protected] Only we can decrypt your files. Please do not contact separate fraudulent sites. You can use freeand even paid software on the Internet, but it is uselessand will cause you to lose filesand timeand money.

Emails

[email protected]

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\SURTR_README.hta

Family

surtr

Ransom Note

SurtrRansomware OOPS ALL YOUR IMPORTANT FILES HAVE BEEN ENCRYPTED AND STOLEN !! Notice : There is only one way to restore your data read the boxes carefully! Attention : Do Not change file names. Do Not try to decrypt using third party softwares , it may cause permanent data loss . If you do not pay the fee within one month , your important files will be published in our public belog . Do not pay any money before decrypting the test files. You can use our 50% discount if you pay the fee within first 15 days of encryption . otherwise the price will be doubled. In order to warranty you , our team will decrypt 3 of your desired files for free.but you need to pay the specified price for the rest of the operation . How To Decrypt : Your system is offline . in order to contact us you can email this address [email protected] use this ID (T3ygNWO3fdq7nC) for the title of your email . If you weren't able to contact us within 24 hours please email : [email protected] If you didn't get any respond within 48 hours use this link (Not Available Now).send your ID and your cryptor name (SurtrRansomwareUserName) therefore we can create another way to contact you as soon as possible

Emails

[email protected]

Targets

- Target
  
  surtr.exe
- Size
  
  320KB
- MD5
  
  e6fc190168519d6a6c4f1519e9450f0f
- SHA1
  
  af2080ddf1064fb80c7b9af942aaabf264441098
- SHA256
  
  8199ef63e0058be6217ec8392258fbe7fac9fb556b8e87f40a3a45835f424980
- SHA512
  
  4522d4e3f8a38dbceb30d09ea04ceeacc33bb273d702d706be68405cd4c9492f862f4ae741f4e0140b54203b3db521e96663f9757bb241b1ac63c1eda3ebb6ba
Score

10^/10

surtr evasion persistence ransomware spyware stealer trojan upx
- Detects Surtr Payload
- Surtr
  Ransomware family first seen in late 2021.
  ransomware surtr
- UAC bypass
  evasion trojan
- Clears Windows event logs
  evasion ransomware
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Modifies boot configuration data using bcdedit
  ransomware evasion
- Blocklisted process makes network request
- Disables Task Manager via registry modification
  evasion
- Disables use of System Restore points
  evasion
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Drops startup file
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Sets desktop wallpaper using registry
  ransomware
- Suspicious use of SetThreadContext
behavioral1 behavioral2