Analysis
-
max time kernel
117s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-02-2025 04:35
Behavioral task
behavioral1
Sample
$y monkey.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
$y monkey.exe
Resource
win10v2004-20250207-en
General
-
Target
$y monkey.exe
-
Size
5.5MB
-
MD5
be716163be9975a407155df9003080de
-
SHA1
9bf9f4f1822acbe01deab51b62395cbd11f4be0d
-
SHA256
d1686f28ffddfb533160ec00c50f02155ede7c13688754a042e733612b769465
-
SHA512
de6865503fa9004724e5c8f0498d3b167e225ab360bcd496670d2dda489066be49e455d1c482749d708e5e2e6b7d6de181866c487330a71f95f1419f8f4b46f4
-
SSDEEP
49152:rvQP1MmB0+KWntlHv6bMd+aBwuDMCKgumT2f:
Malware Config
Signatures
-
Chaos
Ransomware family first seen in June 2021.
-
Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2520-1-0x0000000000A90000-0x000000000100E000-memory.dmp family_chaos behavioral1/files/0x00090000000120f9-7.dat family_chaos behavioral1/memory/2324-8-0x00000000002A0000-0x000000000081E000-memory.dmp family_chaos -
Chaos family
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 900 bcdedit.exe 1496 bcdedit.exe -
pid Process 2592 wbadmin.exe -
Disables Task Manager via registry modification
-
Drops startup file 2 IoCs
description ioc Process 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\get fucked nigger svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2324 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" svchost.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\60QKHYE2\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BAFOJIJD\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\5WY8FHO4\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\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\Accessibility\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\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Y07CWM3B\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4177215427-74451935-3209572229-1000\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\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\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\09OB1FV8\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\SK4ZQZYF\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\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\Contacts\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\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\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\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\Windows\Temporary Internet Files\Content.IE5\WMBPAEF9\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\Burn\Burn\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Accessories\Tablet PC\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\Videos\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\Admin\Downloads\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\All Users\Microsoft\Windows\Start Menu\Programs\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\Default\AppData\Roaming\Microsoft\Windows\SendTo\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\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\o1pr74j34.jpg" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2880 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2520 $y monkey.exe 2324 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2520 $y monkey.exe 2520 $y monkey.exe 2520 $y monkey.exe 2324 svchost.exe 2324 svchost.exe 2324 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1032 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2520 $y monkey.exe Token: SeDebugPrivilege 2324 svchost.exe Token: SeBackupPrivilege 2728 vssvc.exe Token: SeRestorePrivilege 2728 vssvc.exe Token: SeAuditPrivilege 2728 vssvc.exe Token: SeIncreaseQuotaPrivilege 2724 WMIC.exe Token: SeSecurityPrivilege 2724 WMIC.exe Token: SeTakeOwnershipPrivilege 2724 WMIC.exe Token: SeLoadDriverPrivilege 2724 WMIC.exe Token: SeSystemProfilePrivilege 2724 WMIC.exe Token: SeSystemtimePrivilege 2724 WMIC.exe Token: SeProfSingleProcessPrivilege 2724 WMIC.exe Token: SeIncBasePriorityPrivilege 2724 WMIC.exe Token: SeCreatePagefilePrivilege 2724 WMIC.exe Token: SeBackupPrivilege 2724 WMIC.exe Token: SeRestorePrivilege 2724 WMIC.exe Token: SeShutdownPrivilege 2724 WMIC.exe Token: SeDebugPrivilege 2724 WMIC.exe Token: SeSystemEnvironmentPrivilege 2724 WMIC.exe Token: SeRemoteShutdownPrivilege 2724 WMIC.exe Token: SeUndockPrivilege 2724 WMIC.exe Token: SeManageVolumePrivilege 2724 WMIC.exe Token: 33 2724 WMIC.exe Token: 34 2724 WMIC.exe Token: 35 2724 WMIC.exe Token: SeIncreaseQuotaPrivilege 2724 WMIC.exe Token: SeSecurityPrivilege 2724 WMIC.exe Token: SeTakeOwnershipPrivilege 2724 WMIC.exe Token: SeLoadDriverPrivilege 2724 WMIC.exe Token: SeSystemProfilePrivilege 2724 WMIC.exe Token: SeSystemtimePrivilege 2724 WMIC.exe Token: SeProfSingleProcessPrivilege 2724 WMIC.exe Token: SeIncBasePriorityPrivilege 2724 WMIC.exe Token: SeCreatePagefilePrivilege 2724 WMIC.exe Token: SeBackupPrivilege 2724 WMIC.exe Token: SeRestorePrivilege 2724 WMIC.exe Token: SeShutdownPrivilege 2724 WMIC.exe Token: SeDebugPrivilege 2724 WMIC.exe Token: SeSystemEnvironmentPrivilege 2724 WMIC.exe Token: SeRemoteShutdownPrivilege 2724 WMIC.exe Token: SeUndockPrivilege 2724 WMIC.exe Token: SeManageVolumePrivilege 2724 WMIC.exe Token: 33 2724 WMIC.exe Token: 34 2724 WMIC.exe Token: 35 2724 WMIC.exe Token: SeBackupPrivilege 380 wbengine.exe Token: SeRestorePrivilege 380 wbengine.exe Token: SeSecurityPrivilege 380 wbengine.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 968 AcroRd32.exe 968 AcroRd32.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2520 wrote to memory of 2324 2520 $y monkey.exe 30 PID 2520 wrote to memory of 2324 2520 $y monkey.exe 30 PID 2520 wrote to memory of 2324 2520 $y monkey.exe 30 PID 2324 wrote to memory of 2804 2324 svchost.exe 31 PID 2324 wrote to memory of 2804 2324 svchost.exe 31 PID 2324 wrote to memory of 2804 2324 svchost.exe 31 PID 2804 wrote to memory of 2880 2804 cmd.exe 33 PID 2804 wrote to memory of 2880 2804 cmd.exe 33 PID 2804 wrote to memory of 2880 2804 cmd.exe 33 PID 2804 wrote to memory of 2724 2804 cmd.exe 36 PID 2804 wrote to memory of 2724 2804 cmd.exe 36 PID 2804 wrote to memory of 2724 2804 cmd.exe 36 PID 2324 wrote to memory of 272 2324 svchost.exe 38 PID 2324 wrote to memory of 272 2324 svchost.exe 38 PID 2324 wrote to memory of 272 2324 svchost.exe 38 PID 272 wrote to memory of 900 272 cmd.exe 40 PID 272 wrote to memory of 900 272 cmd.exe 40 PID 272 wrote to memory of 900 272 cmd.exe 40 PID 272 wrote to memory of 1496 272 cmd.exe 41 PID 272 wrote to memory of 1496 272 cmd.exe 41 PID 272 wrote to memory of 1496 272 cmd.exe 41 PID 2324 wrote to memory of 2044 2324 svchost.exe 42 PID 2324 wrote to memory of 2044 2324 svchost.exe 42 PID 2324 wrote to memory of 2044 2324 svchost.exe 42 PID 2044 wrote to memory of 2592 2044 cmd.exe 44 PID 2044 wrote to memory of 2592 2044 cmd.exe 44 PID 2044 wrote to memory of 2592 2044 cmd.exe 44 PID 2324 wrote to memory of 1032 2324 svchost.exe 49 PID 2324 wrote to memory of 1032 2324 svchost.exe 49 PID 2324 wrote to memory of 1032 2324 svchost.exe 49 PID 1032 wrote to memory of 968 1032 rundll32.exe 51 PID 1032 wrote to memory of 968 1032 rundll32.exe 51 PID 1032 wrote to memory of 968 1032 rundll32.exe 51 PID 1032 wrote to memory of 968 1032 rundll32.exe 51 -
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.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\$y monkey.exe"C:\Users\Admin\AppData\Local\Temp\$y monkey.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.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:2324 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2880
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2724
-
-
-
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:272 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:900
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1496
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2044 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2592
-
-
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\get fucked nigger3⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\get fucked nigger"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:968
-
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2728
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:380
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1756
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1088
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
458B
MD5d42ed271ba23eaaa4d5cc3b89ec589a5
SHA1a3f9b151b80e1f8a9f1d40590d70091b09d4c846
SHA256aebc2266481648163fa63b9ddacae6800d6626bdb1c569044002bf1ae536171b
SHA512d03bade2c3e2e1b2767a49ed93f970ebf381400e99811de32916b9c359235d75c7770d97a30b3dbf559a9716d8f025320fd5333c94d00d46afad3c44bf9cdf00
-
Filesize
5.5MB
MD5be716163be9975a407155df9003080de
SHA19bf9f4f1822acbe01deab51b62395cbd11f4be0d
SHA256d1686f28ffddfb533160ec00c50f02155ede7c13688754a042e733612b769465
SHA512de6865503fa9004724e5c8f0498d3b167e225ab360bcd496670d2dda489066be49e455d1c482749d708e5e2e6b7d6de181866c487330a71f95f1419f8f4b46f4
-
Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0