Analysis
-
max time kernel
150s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
-
submitted
16-11-2022 05:38
General
-
Target
b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe
-
Size
719KB
-
MD5
8474039d83805eb7b447325c3a8d1ebb
-
SHA1
a07d537f4253745a087709a9a07c449f84deed8d
-
SHA256
b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649
-
SHA512
3272091bbf123ba5e1592e8b2bd7740cddcb174fa158bc6980b25ee61d92387e94a25284736253f83a6eea78b427f6717e888e843db9d7759cfe9a7676576438
-
SSDEEP
12288:q4UOTYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuhJVoM7SPd:bRTYVQ2qZ7aSgLwuVfstRJL6YM6
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Recovery_Instructions.html
href="[email protected]">[email protected]</a>
href="[email protected]">[email protected]</a>
Signatures
-
Detect Neshta payload 1 IoCs
-
MedusaLocker
Ransomware with several variants first seen in September 2019.
-
MedusaLocker payload 6 IoCs
-
Modifies system executable filetype association 2 TTPs 1 IoCs
-
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
-
UAC bypass 3 TTPs 2 IoCs
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Executes dropped EXE 2 IoCs
-
Modifies extensions of user files 12 IoCs
Ransomware generally changes the extension on encrypted files.
-
Loads dropped DLL 3 IoCs
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks whether UAC is enabled 1 TTPs 1 IoCs
-
Drops desktop.ini file(s) 1 IoCs
-
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
-
Drops file in Program Files directory 64 IoCs
-
Drops file in Windows directory 1 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Interacts with shadow copies 2 TTPs 3 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
-
Modifies registry class 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 63 IoCs
-
Suspicious use of WriteProcessMemory 32 IoCs
-
System policy modification 1 TTPs 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe"C:\Users\Admin\AppData\Local\Temp\b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe"1⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3582-490\b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\b2493a580153291b69ca23190d00a00b1220cd0aadf469b3974fdaa726516649.exe"2⤵
- UAC bypass
- Executes dropped EXE
- Modifies extensions of user files
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\SysWOW64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\taskeng.exetaskeng.exe {61685563-BC94-465C-A2EC-E051330ED48C} S-1-5-21-3406023954-474543476-3319432036-1000:VUIIVLGQ\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
864KB
MD55249a3355d734bdccbf450af1a3affdf
SHA1acfebe52359b0691cc0dc729828e7d580aa8c385
SHA256362f098849cf692192daedfc660e7d69cee61172f1b3d838fb026e8fa319cf08
SHA5125782a57bebfb620e77513790bb5a001273891f45caf0c52548ee32ddfa97fc3f07fc5997e5975d8c957c4f6f55af6735adc8690116044b2993887e67fa744de0
-
Filesize
678KB
MD55aa0a571567f8437556e9b00ae5a3532
SHA145377cb152832c9112db7909219fa87a6e760aae
SHA25673549f6017ad04e475e40e9d306b3e042d080843d8e7c029a5bb6b8ab7e34432
SHA512d320fecef75b4514b9cf154d41c3cc03e2cd8f6bf15ff0d7c97398127c0728cf0b24e5a46435573d38b384b1515876070f28daa7d37e81de10d1db2b27ae51ec
-
Filesize
678KB
MD55aa0a571567f8437556e9b00ae5a3532
SHA145377cb152832c9112db7909219fa87a6e760aae
SHA25673549f6017ad04e475e40e9d306b3e042d080843d8e7c029a5bb6b8ab7e34432
SHA512d320fecef75b4514b9cf154d41c3cc03e2cd8f6bf15ff0d7c97398127c0728cf0b24e5a46435573d38b384b1515876070f28daa7d37e81de10d1db2b27ae51ec
-
Filesize
678KB
MD55aa0a571567f8437556e9b00ae5a3532
SHA145377cb152832c9112db7909219fa87a6e760aae
SHA25673549f6017ad04e475e40e9d306b3e042d080843d8e7c029a5bb6b8ab7e34432
SHA512d320fecef75b4514b9cf154d41c3cc03e2cd8f6bf15ff0d7c97398127c0728cf0b24e5a46435573d38b384b1515876070f28daa7d37e81de10d1db2b27ae51ec
-
Filesize
678KB
MD55aa0a571567f8437556e9b00ae5a3532
SHA145377cb152832c9112db7909219fa87a6e760aae
SHA25673549f6017ad04e475e40e9d306b3e042d080843d8e7c029a5bb6b8ab7e34432
SHA512d320fecef75b4514b9cf154d41c3cc03e2cd8f6bf15ff0d7c97398127c0728cf0b24e5a46435573d38b384b1515876070f28daa7d37e81de10d1db2b27ae51ec
-
Filesize
252KB
MD59e2b9928c89a9d0da1d3e8f4bd96afa7
SHA1ec66cda99f44b62470c6930e5afda061579cde35
SHA2568899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
SHA5122ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156
-
Filesize
678KB
MD55aa0a571567f8437556e9b00ae5a3532
SHA145377cb152832c9112db7909219fa87a6e760aae
SHA25673549f6017ad04e475e40e9d306b3e042d080843d8e7c029a5bb6b8ab7e34432
SHA512d320fecef75b4514b9cf154d41c3cc03e2cd8f6bf15ff0d7c97398127c0728cf0b24e5a46435573d38b384b1515876070f28daa7d37e81de10d1db2b27ae51ec
-
Filesize
678KB
MD55aa0a571567f8437556e9b00ae5a3532
SHA145377cb152832c9112db7909219fa87a6e760aae
SHA25673549f6017ad04e475e40e9d306b3e042d080843d8e7c029a5bb6b8ab7e34432
SHA512d320fecef75b4514b9cf154d41c3cc03e2cd8f6bf15ff0d7c97398127c0728cf0b24e5a46435573d38b384b1515876070f28daa7d37e81de10d1db2b27ae51ec
-
-
-
-
-
-
-
Filesize
8KB
-
-