Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
30-07-2024 18:42
Behavioral task
behavioral1
Sample
9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe
Resource
win10v2004-20240730-en
General
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Target
9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe
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Size
2.3MB
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MD5
0610189e95dbee895c8f710b7abf0bb2
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SHA1
433adc0d669b364bcca0d7594eb6f58d80a467bb
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SHA256
9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527
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SHA512
85c6b68bf39cc3389e1aad5745b318f55b3ee8505060e459bb3d0a2f6d0468f1f3d3335f7a2618627b080eb342681709fa7cfe327c76c1422b2f7360575d1e73
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SSDEEP
24576:3aA/tcwqNwOMPhkx3W0CiO2wlqXGMvZ115EGDxsnbMQ:lOwqS0/3qSGEpRUb
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/2272-1-0x0000000001310000-0x000000000156A000-memory.dmp family_chaos behavioral1/files/0x00090000000120f9-6.dat family_chaos behavioral1/memory/2824-8-0x0000000000810000-0x0000000000A6A000-memory.dmp family_chaos -
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 1060 bcdedit.exe 1128 bcdedit.exe -
Renames multiple (181) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 1196 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini HorrorDead Ransomare.exe -
Executes dropped EXE 1 IoCs
pid Process 2824 HorrorDead Ransomare.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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\HorrorDead Ransomare.exe" HorrorDead Ransomare.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini HorrorDead Ransomare.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ROVWYKHE\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Links\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Downloads\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Videos\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\MYC3PENY\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9C9T5AL\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Documents\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Music\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Music\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Libraries\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Videos\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\63WZ73PY\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YQ90JXIE\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\IQBL5G2Z\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Pictures\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Searches\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\7CO3PKGI\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Public\Documents\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L2BFB2JG\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini HorrorDead Ransomare.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini HorrorDead Ransomare.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fsbjdcq4s.jpg" HorrorDead Ransomare.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 2696 vssadmin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2824 HorrorDead Ransomare.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe 2824 HorrorDead Ransomare.exe 2824 HorrorDead Ransomare.exe 2824 HorrorDead Ransomare.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe Token: SeDebugPrivilege 2824 HorrorDead Ransomare.exe Token: SeBackupPrivilege 2608 vssvc.exe Token: SeRestorePrivilege 2608 vssvc.exe Token: SeAuditPrivilege 2608 vssvc.exe Token: SeIncreaseQuotaPrivilege 2912 WMIC.exe Token: SeSecurityPrivilege 2912 WMIC.exe Token: SeTakeOwnershipPrivilege 2912 WMIC.exe Token: SeLoadDriverPrivilege 2912 WMIC.exe Token: SeSystemProfilePrivilege 2912 WMIC.exe Token: SeSystemtimePrivilege 2912 WMIC.exe Token: SeProfSingleProcessPrivilege 2912 WMIC.exe Token: SeIncBasePriorityPrivilege 2912 WMIC.exe Token: SeCreatePagefilePrivilege 2912 WMIC.exe Token: SeBackupPrivilege 2912 WMIC.exe Token: SeRestorePrivilege 2912 WMIC.exe Token: SeShutdownPrivilege 2912 WMIC.exe Token: SeDebugPrivilege 2912 WMIC.exe Token: SeSystemEnvironmentPrivilege 2912 WMIC.exe Token: SeRemoteShutdownPrivilege 2912 WMIC.exe Token: SeUndockPrivilege 2912 WMIC.exe Token: SeManageVolumePrivilege 2912 WMIC.exe Token: 33 2912 WMIC.exe Token: 34 2912 WMIC.exe Token: 35 2912 WMIC.exe Token: SeIncreaseQuotaPrivilege 2912 WMIC.exe Token: SeSecurityPrivilege 2912 WMIC.exe Token: SeTakeOwnershipPrivilege 2912 WMIC.exe Token: SeLoadDriverPrivilege 2912 WMIC.exe Token: SeSystemProfilePrivilege 2912 WMIC.exe Token: SeSystemtimePrivilege 2912 WMIC.exe Token: SeProfSingleProcessPrivilege 2912 WMIC.exe Token: SeIncBasePriorityPrivilege 2912 WMIC.exe Token: SeCreatePagefilePrivilege 2912 WMIC.exe Token: SeBackupPrivilege 2912 WMIC.exe Token: SeRestorePrivilege 2912 WMIC.exe Token: SeShutdownPrivilege 2912 WMIC.exe Token: SeDebugPrivilege 2912 WMIC.exe Token: SeSystemEnvironmentPrivilege 2912 WMIC.exe Token: SeRemoteShutdownPrivilege 2912 WMIC.exe Token: SeUndockPrivilege 2912 WMIC.exe Token: SeManageVolumePrivilege 2912 WMIC.exe Token: 33 2912 WMIC.exe Token: 34 2912 WMIC.exe Token: 35 2912 WMIC.exe Token: SeBackupPrivilege 1244 wbengine.exe Token: SeRestorePrivilege 1244 wbengine.exe Token: SeSecurityPrivilege 1244 wbengine.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 2272 wrote to memory of 2824 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe 31 PID 2272 wrote to memory of 2824 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe 31 PID 2272 wrote to memory of 2824 2272 9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe 31 PID 2824 wrote to memory of 2764 2824 HorrorDead Ransomare.exe 32 PID 2824 wrote to memory of 2764 2824 HorrorDead Ransomare.exe 32 PID 2824 wrote to memory of 2764 2824 HorrorDead Ransomare.exe 32 PID 2764 wrote to memory of 2696 2764 cmd.exe 34 PID 2764 wrote to memory of 2696 2764 cmd.exe 34 PID 2764 wrote to memory of 2696 2764 cmd.exe 34 PID 2764 wrote to memory of 2912 2764 cmd.exe 37 PID 2764 wrote to memory of 2912 2764 cmd.exe 37 PID 2764 wrote to memory of 2912 2764 cmd.exe 37 PID 2824 wrote to memory of 1696 2824 HorrorDead Ransomare.exe 39 PID 2824 wrote to memory of 1696 2824 HorrorDead Ransomare.exe 39 PID 2824 wrote to memory of 1696 2824 HorrorDead Ransomare.exe 39 PID 1696 wrote to memory of 1060 1696 cmd.exe 41 PID 1696 wrote to memory of 1060 1696 cmd.exe 41 PID 1696 wrote to memory of 1060 1696 cmd.exe 41 PID 1696 wrote to memory of 1128 1696 cmd.exe 42 PID 1696 wrote to memory of 1128 1696 cmd.exe 42 PID 1696 wrote to memory of 1128 1696 cmd.exe 42 PID 2824 wrote to memory of 1440 2824 HorrorDead Ransomare.exe 43 PID 2824 wrote to memory of 1440 2824 HorrorDead Ransomare.exe 43 PID 2824 wrote to memory of 1440 2824 HorrorDead Ransomare.exe 43 PID 1440 wrote to memory of 1196 1440 cmd.exe 45 PID 1440 wrote to memory of 1196 1440 cmd.exe 45 PID 1440 wrote to memory of 1196 1440 cmd.exe 45 -
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\9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe"C:\Users\Admin\AppData\Local\Temp\9c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Users\Admin\AppData\Roaming\HorrorDead Ransomare.exe"C:\Users\Admin\AppData\Roaming\HorrorDead Ransomare.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- 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:2824 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2696
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2912
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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:1696 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1060
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1128
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1196
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2608
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1244
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2620
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2860
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.3MB
MD50610189e95dbee895c8f710b7abf0bb2
SHA1433adc0d669b364bcca0d7594eb6f58d80a467bb
SHA2569c7713c8cd8233686ea25551b426fef708636c7fc2eea2978a9333772aa3b527
SHA51285c6b68bf39cc3389e1aad5745b318f55b3ee8505060e459bb3d0a2f6d0468f1f3d3335f7a2618627b080eb342681709fa7cfe327c76c1422b2f7360575d1e73
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0