Analysis
-
max time kernel
151s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 21:04
Static task
static1
Behavioral task
behavioral1
Sample
e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe
Resource
win10v2004-20220812-en
General
-
Target
e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe
-
Size
501KB
-
MD5
93d9237d8a6aa1bf4012e4ee9d2954c8
-
SHA1
08e10e336b6c8fdd2ccd67cc3eeea06dd1599c65
-
SHA256
e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3
-
SHA512
24ad60703732de52a65a58039b1b72be660acc9fd8d765e41d83be037ba888b0a9840c14dc94a90b9b399162db6ea64402f4fb3dcb32cbc71d7358b5573e65db
-
SSDEEP
12288:H4ZVq+aPYETWX9cfqrk1Y9ykRWdgYCYktspGzbgdVWuJdlIrW:HPcIeyqrk1Y99CpGO7aW
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 1284 csrss.exe -
Deletes itself 1 IoCs
pid Process 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe -
Loads dropped DLL 2 IoCs
pid Process 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe" csrss.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe" csrss.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 668 schtasks.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe:ZONE.identifier cmd.exe File created C:\Users\Admin\AppData\Roaming\csrss.exe\:ZONE.identifier:$DATA e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 1284 csrss.exe 1284 csrss.exe 1284 csrss.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe Token: SeDebugPrivilege 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe Token: SeDebugPrivilege 1284 csrss.exe Token: SeDebugPrivilege 1284 csrss.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1680 wrote to memory of 632 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 28 PID 1680 wrote to memory of 632 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 28 PID 1680 wrote to memory of 632 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 28 PID 1680 wrote to memory of 632 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 28 PID 1680 wrote to memory of 668 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 30 PID 1680 wrote to memory of 668 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 30 PID 1680 wrote to memory of 668 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 30 PID 1680 wrote to memory of 668 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 30 PID 1680 wrote to memory of 1284 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 32 PID 1680 wrote to memory of 1284 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 32 PID 1680 wrote to memory of 1284 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 32 PID 1680 wrote to memory of 1284 1680 e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe 32
Processes
-
C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe"C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe"1⤵
- Deletes itself
- Loads dropped DLL
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe":ZONE.identifier & exit2⤵
- NTFS ADS
PID:632
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Update\Windows" /XML "C:\Users\Admin\AppData\Local\Temp\2114197370.xml"2⤵
- Creates scheduled task(s)
PID:668
-
-
C:\Users\Admin\AppData\Roaming\csrss.exe"C:\Users\Admin\AppData\Roaming\csrss.exe" -keyhide -prochide 1680 -reg C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe -proc 1680 C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1284
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD5b8e90e2ef934a282149fa432c01030e4
SHA1efa4276e63fcff1aff2db6713a85998ff084bcef
SHA256f6b5a518eb857a4c2203b682f4ac046cd82895d5ab782016bf1fc0bcde8fa4d9
SHA512f564d9878647aa76ff81a98763922e6077b63ba06a5443a305390829d82eac3582e6ee5eb7bb82f5f6934b56d72d3efb8922951ecaadf753c2a7192b2797d46a
-
C:\Users\Admin\AppData\Local\Temp\e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3.exe
Filesize501KB
MD593d9237d8a6aa1bf4012e4ee9d2954c8
SHA108e10e336b6c8fdd2ccd67cc3eeea06dd1599c65
SHA256e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3
SHA51224ad60703732de52a65a58039b1b72be660acc9fd8d765e41d83be037ba888b0a9840c14dc94a90b9b399162db6ea64402f4fb3dcb32cbc71d7358b5573e65db
-
Filesize
501KB
MD593d9237d8a6aa1bf4012e4ee9d2954c8
SHA108e10e336b6c8fdd2ccd67cc3eeea06dd1599c65
SHA256e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3
SHA51224ad60703732de52a65a58039b1b72be660acc9fd8d765e41d83be037ba888b0a9840c14dc94a90b9b399162db6ea64402f4fb3dcb32cbc71d7358b5573e65db
-
Filesize
501KB
MD593d9237d8a6aa1bf4012e4ee9d2954c8
SHA108e10e336b6c8fdd2ccd67cc3eeea06dd1599c65
SHA256e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3
SHA51224ad60703732de52a65a58039b1b72be660acc9fd8d765e41d83be037ba888b0a9840c14dc94a90b9b399162db6ea64402f4fb3dcb32cbc71d7358b5573e65db
-
Filesize
501KB
MD593d9237d8a6aa1bf4012e4ee9d2954c8
SHA108e10e336b6c8fdd2ccd67cc3eeea06dd1599c65
SHA256e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3
SHA51224ad60703732de52a65a58039b1b72be660acc9fd8d765e41d83be037ba888b0a9840c14dc94a90b9b399162db6ea64402f4fb3dcb32cbc71d7358b5573e65db
-
Filesize
501KB
MD593d9237d8a6aa1bf4012e4ee9d2954c8
SHA108e10e336b6c8fdd2ccd67cc3eeea06dd1599c65
SHA256e7640b3fc1d0fa4b85f75510672bbf5e4445d5029573642bf58ba962cee2c7c3
SHA51224ad60703732de52a65a58039b1b72be660acc9fd8d765e41d83be037ba888b0a9840c14dc94a90b9b399162db6ea64402f4fb3dcb32cbc71d7358b5573e65db