Analysis
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max time kernel
119s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-02-2025 14:58
Behavioral task
behavioral1
Sample
Test.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Test.exe
Resource
win10v2004-20250217-en
General
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Target
Test.exe
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Size
816KB
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MD5
7d665d19c599e7dde4678186a93cd68c
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SHA1
ee40d4a8c9f93841af4a6ce9eded30ae00d6c28c
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SHA256
983223d3c64d68f560b7315bc8b32610c7606382e8778537bee3cfe70dff1f76
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SHA512
522072b91c03497a84d0df047ea2be56143e58878e7064ab3c82877499df1822c43701fb9233a8ae9b1a7fe7824d0171905d5f1fb676529439c792b1c9857b1a
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SSDEEP
12288:pn7H1QuMhey5GsQjlXfDVtemY79zhrGdb+qe2gUc2j+pey7lDrKhlHNtwGmI4mmh:VH1g2RNmjBaWmm
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2344-1-0x00000000000E0000-0x00000000001B2000-memory.dmp family_chaos behavioral1/files/0x000f000000012245-6.dat family_chaos behavioral1/memory/2492-7-0x0000000001280000-0x0000000001352000-memory.dmp family_chaos -
Chaos family
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Deletes shadow copies 3 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 2564 bcdedit.exe 2580 bcdedit.exe -
pid Process 2960 wbadmin.exe -
Disables Task Manager via registry modification
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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\README.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2492 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Contacts\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 File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CUMHXU73\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\OM66BHWE\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4DY23DRT\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\U8F4PBMO\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\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\R627XHFP\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\T072YXIW\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\98Y29LGS\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Links\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Default\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\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\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YPLB435F\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\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\gldsyxfe5.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2444 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2836 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2492 svchost.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2344 Test.exe 2344 Test.exe 2344 Test.exe 2492 svchost.exe 2492 svchost.exe 2492 svchost.exe 2492 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2344 Test.exe Token: SeDebugPrivilege 2492 svchost.exe Token: SeBackupPrivilege 2736 vssvc.exe Token: SeRestorePrivilege 2736 vssvc.exe Token: SeAuditPrivilege 2736 vssvc.exe Token: SeIncreaseQuotaPrivilege 2800 WMIC.exe Token: SeSecurityPrivilege 2800 WMIC.exe Token: SeTakeOwnershipPrivilege 2800 WMIC.exe Token: SeLoadDriverPrivilege 2800 WMIC.exe Token: SeSystemProfilePrivilege 2800 WMIC.exe Token: SeSystemtimePrivilege 2800 WMIC.exe Token: SeProfSingleProcessPrivilege 2800 WMIC.exe Token: SeIncBasePriorityPrivilege 2800 WMIC.exe Token: SeCreatePagefilePrivilege 2800 WMIC.exe Token: SeBackupPrivilege 2800 WMIC.exe Token: SeRestorePrivilege 2800 WMIC.exe Token: SeShutdownPrivilege 2800 WMIC.exe Token: SeDebugPrivilege 2800 WMIC.exe Token: SeSystemEnvironmentPrivilege 2800 WMIC.exe Token: SeRemoteShutdownPrivilege 2800 WMIC.exe Token: SeUndockPrivilege 2800 WMIC.exe Token: SeManageVolumePrivilege 2800 WMIC.exe Token: 33 2800 WMIC.exe Token: 34 2800 WMIC.exe Token: 35 2800 WMIC.exe Token: SeIncreaseQuotaPrivilege 2800 WMIC.exe Token: SeSecurityPrivilege 2800 WMIC.exe Token: SeTakeOwnershipPrivilege 2800 WMIC.exe Token: SeLoadDriverPrivilege 2800 WMIC.exe Token: SeSystemProfilePrivilege 2800 WMIC.exe Token: SeSystemtimePrivilege 2800 WMIC.exe Token: SeProfSingleProcessPrivilege 2800 WMIC.exe Token: SeIncBasePriorityPrivilege 2800 WMIC.exe Token: SeCreatePagefilePrivilege 2800 WMIC.exe Token: SeBackupPrivilege 2800 WMIC.exe Token: SeRestorePrivilege 2800 WMIC.exe Token: SeShutdownPrivilege 2800 WMIC.exe Token: SeDebugPrivilege 2800 WMIC.exe Token: SeSystemEnvironmentPrivilege 2800 WMIC.exe Token: SeRemoteShutdownPrivilege 2800 WMIC.exe Token: SeUndockPrivilege 2800 WMIC.exe Token: SeManageVolumePrivilege 2800 WMIC.exe Token: 33 2800 WMIC.exe Token: 34 2800 WMIC.exe Token: 35 2800 WMIC.exe Token: SeBackupPrivilege 1644 wbengine.exe Token: SeRestorePrivilege 1644 wbengine.exe Token: SeSecurityPrivilege 1644 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2344 wrote to memory of 2492 2344 Test.exe 30 PID 2344 wrote to memory of 2492 2344 Test.exe 30 PID 2344 wrote to memory of 2492 2344 Test.exe 30 PID 2492 wrote to memory of 2064 2492 svchost.exe 31 PID 2492 wrote to memory of 2064 2492 svchost.exe 31 PID 2492 wrote to memory of 2064 2492 svchost.exe 31 PID 2064 wrote to memory of 2444 2064 cmd.exe 33 PID 2064 wrote to memory of 2444 2064 cmd.exe 33 PID 2064 wrote to memory of 2444 2064 cmd.exe 33 PID 2064 wrote to memory of 2800 2064 cmd.exe 36 PID 2064 wrote to memory of 2800 2064 cmd.exe 36 PID 2064 wrote to memory of 2800 2064 cmd.exe 36 PID 2492 wrote to memory of 2604 2492 svchost.exe 38 PID 2492 wrote to memory of 2604 2492 svchost.exe 38 PID 2492 wrote to memory of 2604 2492 svchost.exe 38 PID 2604 wrote to memory of 2564 2604 cmd.exe 40 PID 2604 wrote to memory of 2564 2604 cmd.exe 40 PID 2604 wrote to memory of 2564 2604 cmd.exe 40 PID 2604 wrote to memory of 2580 2604 cmd.exe 41 PID 2604 wrote to memory of 2580 2604 cmd.exe 41 PID 2604 wrote to memory of 2580 2604 cmd.exe 41 PID 2492 wrote to memory of 2600 2492 svchost.exe 42 PID 2492 wrote to memory of 2600 2492 svchost.exe 42 PID 2492 wrote to memory of 2600 2492 svchost.exe 42 PID 2600 wrote to memory of 2960 2600 cmd.exe 44 PID 2600 wrote to memory of 2960 2600 cmd.exe 44 PID 2600 wrote to memory of 2960 2600 cmd.exe 44 PID 2492 wrote to memory of 2836 2492 svchost.exe 49 PID 2492 wrote to memory of 2836 2492 svchost.exe 49 PID 2492 wrote to memory of 2836 2492 svchost.exe 49 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\Test.exe"C:\Users\Admin\AppData\Local\Temp\Test.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2444
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2800
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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:2604 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2564
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2580
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2960
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\README.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2836
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2736
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1644
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1688
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1984
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
21B
MD5f3cf2cbd8263794fdc35e749f030fe74
SHA192f408123657b7811c205c4c7d66e6efd3bc8143
SHA256e2e17766f7dda95590b6b984f36d367fb077a2710009750354f7d6ac2ff0dfb1
SHA5129a00ae7a7a89a60dd8c62db3b1cf20cf65518db6fe058cf1fc862463a4b8a616e2841a4c918822c00f0dc73d0b74cdab4ce318af6c4368aff66524aa10e18c23
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
816KB
MD57d665d19c599e7dde4678186a93cd68c
SHA1ee40d4a8c9f93841af4a6ce9eded30ae00d6c28c
SHA256983223d3c64d68f560b7315bc8b32610c7606382e8778537bee3cfe70dff1f76
SHA512522072b91c03497a84d0df047ea2be56143e58878e7064ab3c82877499df1822c43701fb9233a8ae9b1a7fe7824d0171905d5f1fb676529439c792b1c9857b1a