Analysis
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max time kernel
1050s -
max time network
1051s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
12-05-2024 21:48
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
CryptoLocker.exe
Resource
win10v2004-20240426-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
CryptoLocker.exe
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Size
338KB
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MD5
04fb36199787f2e3e2135611a38321eb
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SHA1
65559245709fe98052eb284577f1fd61c01ad20d
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SHA256
d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9
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SHA512
533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444
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SSDEEP
6144:sWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvC:sWkEuCaNT85I2vCMX5l+ZRv
Score
10/10
Malware Config
Signatures
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CryptoLocker
Ransomware family with multiple variants.
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Deletes itself 1 IoCs
pid Process 1380 {34184A33-0407-212E-3320-09040709E2C2}.exe -
Executes dropped EXE 2 IoCs
pid Process 1380 {34184A33-0407-212E-3320-09040709E2C2}.exe 3848 {34184A33-0407-212E-3320-09040709E2C2}.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\{34184A33-0407-212E-3320-09040709E2C2}.exe" {34184A33-0407-212E-3320-09040709E2C2}.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1584 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1584 taskmgr.exe Token: SeSystemProfilePrivilege 1584 taskmgr.exe Token: SeCreateGlobalPrivilege 1584 taskmgr.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe 1584 taskmgr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1664 wrote to memory of 1380 1664 CryptoLocker.exe 83 PID 1664 wrote to memory of 1380 1664 CryptoLocker.exe 83 PID 1664 wrote to memory of 1380 1664 CryptoLocker.exe 83 PID 1380 wrote to memory of 3848 1380 {34184A33-0407-212E-3320-09040709E2C2}.exe 84 PID 1380 wrote to memory of 3848 1380 {34184A33-0407-212E-3320-09040709E2C2}.exe 84 PID 1380 wrote to memory of 3848 1380 {34184A33-0407-212E-3320-09040709E2C2}.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe"C:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe"C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" "/rC:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1380 -
C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe"C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w0000021C3⤵
- Executes dropped EXE
PID:3848
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1584
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
338KB
MD504fb36199787f2e3e2135611a38321eb
SHA165559245709fe98052eb284577f1fd61c01ad20d
SHA256d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9
SHA512533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444