General
-
Target
d84ba6fb3ad59a1a983fa35edca9882763ef28e15f18cdbeecef52d638b24f8a
-
Size
450KB
-
Sample
230814-q5l6bscd25
-
MD5
e0c7649fd233a5af59d991fe134c5c49
-
SHA1
e1d706e448dd3148311007391ab204cc614af369
-
SHA256
d84ba6fb3ad59a1a983fa35edca9882763ef28e15f18cdbeecef52d638b24f8a
-
SHA512
5733d00f3e097f7a11d5653c167d236cf523974e10a6053323d8594553f91bee6be38f2bfac675e022f17334b8da6bb6d294cc70a7e9df03b64bfcf8e4c1ad68
-
SSDEEP
12288:URlDI9DXfJZ5lA/Cv5Ltg4pEgL2I3cCGVzn5LdwN5Eao2qkvhd5dC1mB:UDDIlfRlA/sP6RCGrZwNyao2hvhHgm
Behavioral task
behavioral1
Sample
Fast.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Fast.exe
Resource
win10v2004-20230703-en
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Targets
-
-
Target
Fast.exe
-
Size
850KB
-
MD5
f92744c70ebb0649cf37b58519426a33
-
SHA1
789829f5b83e1bdb0d6b00996027dd146668204d
-
SHA256
5c14908448ae75ccb33e9094d0b06f238c69a2d3e8aab66e21da91706bc00dc4
-
SHA512
f11be0173f6d4ec930822943b6a696562e7cf583052e92b1ed508e4d66a0088ed0a1b6afd80638aab7287bcb5286c767590f58f2da941545fe1505d71bbeba4e
-
SSDEEP
12288:BMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9Kff4ggUj:BnsJ39LyjbJkQFMhmC+6GD984ggE
-
Detect Neshta payload
-
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
-
Modifies boot configuration data using bcdedit
-
Renames multiple (314) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Renames multiple (401) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Modifies Windows Firewall
-
Deletes itself
-
Drops startup file
-
Executes dropped EXE
-
Loads dropped DLL
-
Modifies system executable filetype association
-
Adds Run key to start application
-
Drops desktop.ini file(s)
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1