Analysis
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max time kernel
107s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 13:19
Static task
static1
Behavioral task
behavioral1
Sample
954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe
Resource
win7-20220414-en
General
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Target
954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe
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Size
22KB
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MD5
a4ac3f1674f24c6e596bf71fc47bd275
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SHA1
24dbe7a81a5bda771d7557fa3f5000f4a9f27179
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SHA256
954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c
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SHA512
d75690b60afbc2999d5f2892b6ee924b902a1497f9820393c78edd64c061908462e98593267836bdab28bb9963fc30b4e780f0c7b5853fd067765e3a6df0bdc7
Malware Config
Extracted
C:\Users\Admin\Music\AddApprove.html
ryuk
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral2/memory/1084-130-0x0000000000630000-0x000000000063C000-memory.dmp family_chaos behavioral2/files/0x00030000000225c8-133.dat family_chaos behavioral2/files/0x00030000000225c8-134.dat family_chaos -
Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1168 bcdedit.exe 5036 bcdedit.exe -
pid Process 4176 wbadmin.exe -
Executes dropped EXE 1 IoCs
pid Process 2968 svchost.exe -
Modifies extensions of user files 1 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\PopAssert.tif => C:\Users\Admin\Pictures\PopAssert.tif.fuckazov svchost.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\stop_propaganda.txt svchost.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 33 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 112 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3820 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2968 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe Token: SeDebugPrivilege 2968 svchost.exe Token: SeBackupPrivilege 340 vssvc.exe Token: SeRestorePrivilege 340 vssvc.exe Token: SeAuditPrivilege 340 vssvc.exe Token: SeIncreaseQuotaPrivilege 588 WMIC.exe Token: SeSecurityPrivilege 588 WMIC.exe Token: SeTakeOwnershipPrivilege 588 WMIC.exe Token: SeLoadDriverPrivilege 588 WMIC.exe Token: SeSystemProfilePrivilege 588 WMIC.exe Token: SeSystemtimePrivilege 588 WMIC.exe Token: SeProfSingleProcessPrivilege 588 WMIC.exe Token: SeIncBasePriorityPrivilege 588 WMIC.exe Token: SeCreatePagefilePrivilege 588 WMIC.exe Token: SeBackupPrivilege 588 WMIC.exe Token: SeRestorePrivilege 588 WMIC.exe Token: SeShutdownPrivilege 588 WMIC.exe Token: SeDebugPrivilege 588 WMIC.exe Token: SeSystemEnvironmentPrivilege 588 WMIC.exe Token: SeRemoteShutdownPrivilege 588 WMIC.exe Token: SeUndockPrivilege 588 WMIC.exe Token: SeManageVolumePrivilege 588 WMIC.exe Token: 33 588 WMIC.exe Token: 34 588 WMIC.exe Token: 35 588 WMIC.exe Token: 36 588 WMIC.exe Token: SeIncreaseQuotaPrivilege 588 WMIC.exe Token: SeSecurityPrivilege 588 WMIC.exe Token: SeTakeOwnershipPrivilege 588 WMIC.exe Token: SeLoadDriverPrivilege 588 WMIC.exe Token: SeSystemProfilePrivilege 588 WMIC.exe Token: SeSystemtimePrivilege 588 WMIC.exe Token: SeProfSingleProcessPrivilege 588 WMIC.exe Token: SeIncBasePriorityPrivilege 588 WMIC.exe Token: SeCreatePagefilePrivilege 588 WMIC.exe Token: SeBackupPrivilege 588 WMIC.exe Token: SeRestorePrivilege 588 WMIC.exe Token: SeShutdownPrivilege 588 WMIC.exe Token: SeDebugPrivilege 588 WMIC.exe Token: SeSystemEnvironmentPrivilege 588 WMIC.exe Token: SeRemoteShutdownPrivilege 588 WMIC.exe Token: SeUndockPrivilege 588 WMIC.exe Token: SeManageVolumePrivilege 588 WMIC.exe Token: 33 588 WMIC.exe Token: 34 588 WMIC.exe Token: 35 588 WMIC.exe Token: 36 588 WMIC.exe Token: SeBackupPrivilege 3096 wbengine.exe Token: SeRestorePrivilege 3096 wbengine.exe Token: SeSecurityPrivilege 3096 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1084 wrote to memory of 2968 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 80 PID 1084 wrote to memory of 2968 1084 954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe 80 PID 2968 wrote to memory of 2440 2968 svchost.exe 84 PID 2968 wrote to memory of 2440 2968 svchost.exe 84 PID 2440 wrote to memory of 112 2440 cmd.exe 86 PID 2440 wrote to memory of 112 2440 cmd.exe 86 PID 2440 wrote to memory of 588 2440 cmd.exe 90 PID 2440 wrote to memory of 588 2440 cmd.exe 90 PID 2968 wrote to memory of 1272 2968 svchost.exe 93 PID 2968 wrote to memory of 1272 2968 svchost.exe 93 PID 1272 wrote to memory of 1168 1272 cmd.exe 95 PID 1272 wrote to memory of 1168 1272 cmd.exe 95 PID 1272 wrote to memory of 5036 1272 cmd.exe 96 PID 1272 wrote to memory of 5036 1272 cmd.exe 96 PID 2968 wrote to memory of 3056 2968 svchost.exe 97 PID 2968 wrote to memory of 3056 2968 svchost.exe 97 PID 3056 wrote to memory of 4176 3056 cmd.exe 100 PID 3056 wrote to memory of 4176 3056 cmd.exe 100 PID 2968 wrote to memory of 3820 2968 svchost.exe 105 PID 2968 wrote to memory of 3820 2968 svchost.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe"C:\Users\Admin\AppData\Local\Temp\954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1084 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Checks computer location settings
- Drops startup file
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2440 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:112
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:588
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1168
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:5036
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4176
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\stop_propaganda.txt3⤵
- Opens file in notepad (likely ransom note)
PID:3820
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:340
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3096
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3676
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1164
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
131B
MD54e70e7628592c28e0a1b796e5ff7cbb6
SHA121412f18b74b8ce46f7e7248a575d3c530c5c1d8
SHA25649ccdd40ebfe0b3da0ca1d2c034b7e2eecaaffe273f0fb14cf4af50af09170f7
SHA512f4eddbf3387972ad7facc2c5d1dd973fdde36a2910387b289ee06144bda16d51b6f26b4d0d08cd14a7da5dc958c31b0eb59781c3a437f6eeeedd67eeead9e7a8
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Filesize
22KB
MD5a4ac3f1674f24c6e596bf71fc47bd275
SHA124dbe7a81a5bda771d7557fa3f5000f4a9f27179
SHA256954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c
SHA512d75690b60afbc2999d5f2892b6ee924b902a1497f9820393c78edd64c061908462e98593267836bdab28bb9963fc30b4e780f0c7b5853fd067765e3a6df0bdc7
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Filesize
22KB
MD5a4ac3f1674f24c6e596bf71fc47bd275
SHA124dbe7a81a5bda771d7557fa3f5000f4a9f27179
SHA256954d8fcd6b74d76999f9ec033ca855ffdab6595be23039f03bc4c6017fa3932c
SHA512d75690b60afbc2999d5f2892b6ee924b902a1497f9820393c78edd64c061908462e98593267836bdab28bb9963fc30b4e780f0c7b5853fd067765e3a6df0bdc7