Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
24-03-2024 01:47
Behavioral task
behavioral1
Sample
2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe
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Size
124KB
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MD5
8d6cf920922372018823199536ab94b9
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SHA1
c93931bbdda0f4efe54f5eaa7dd04c362d93689a
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SHA256
62a1c371bea432fcd5707d25810ab573b6ec269625c59db9539e3939d3fe9554
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SHA512
11a4499b072c1dabe61c19acb29da374b4d4979c2581bcc49c3bae43f5bec295d03d9af74158152f95310eb3aedfff3bac92c0d9f3f063fba283caeee5c5f41c
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SSDEEP
3072:jo8d30hr9ynxJxaJ3e6ua0g0qcB2f/u80kcmU/C7eJBz4gdw:Bd4r9ynxkbOqguxU6iW
Malware Config
Extracted
C:\Users\Admin\Documents\README.txt
https://www.coinmama.com/
https://www.bitpanda.com/
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/3096-0-0x00000000009E0000-0x0000000000A04000-memory.dmp family_chaos behavioral2/files/0x000800000002322e-6.dat family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/3096-0-0x00000000009E0000-0x0000000000A04000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000800000002322e-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 4948 bcdedit.exe 2836 bcdedit.exe -
pid Process 4076 wbadmin.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation Private Chat.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Private Chat.url Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Private Chat.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\README.txt Private Chat.exe -
Executes dropped EXE 1 IoCs
pid Process 3868 Private Chat.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) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Private Chat.exe File opened for modification C:\Users\Public\Videos\desktop.ini Private Chat.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Private Chat.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-557049126-2506969350-2798870634-1000\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Private Chat.exe File opened for modification C:\Users\Public\Music\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Private Chat.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Music\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Private Chat.exe File opened for modification C:\Users\Public\Documents\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Links\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini Private Chat.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Private Chat.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\l9ua4kr3c.jpg" Private Chat.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 1996 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000_Classes\Local Settings Private Chat.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4564 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3868 Private Chat.exe -
Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe 3868 Private Chat.exe -
Suspicious use of AdjustPrivilegeToken 51 IoCs
description pid Process Token: SeDebugPrivilege 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe Token: SeDebugPrivilege 3868 Private Chat.exe Token: SeBackupPrivilege 1320 vssvc.exe Token: SeRestorePrivilege 1320 vssvc.exe Token: SeAuditPrivilege 1320 vssvc.exe Token: SeIncreaseQuotaPrivilege 2584 WMIC.exe Token: SeSecurityPrivilege 2584 WMIC.exe Token: SeTakeOwnershipPrivilege 2584 WMIC.exe Token: SeLoadDriverPrivilege 2584 WMIC.exe Token: SeSystemProfilePrivilege 2584 WMIC.exe Token: SeSystemtimePrivilege 2584 WMIC.exe Token: SeProfSingleProcessPrivilege 2584 WMIC.exe Token: SeIncBasePriorityPrivilege 2584 WMIC.exe Token: SeCreatePagefilePrivilege 2584 WMIC.exe Token: SeBackupPrivilege 2584 WMIC.exe Token: SeRestorePrivilege 2584 WMIC.exe Token: SeShutdownPrivilege 2584 WMIC.exe Token: SeDebugPrivilege 2584 WMIC.exe Token: SeSystemEnvironmentPrivilege 2584 WMIC.exe Token: SeRemoteShutdownPrivilege 2584 WMIC.exe Token: SeUndockPrivilege 2584 WMIC.exe Token: SeManageVolumePrivilege 2584 WMIC.exe Token: 33 2584 WMIC.exe Token: 34 2584 WMIC.exe Token: 35 2584 WMIC.exe Token: 36 2584 WMIC.exe Token: SeIncreaseQuotaPrivilege 2584 WMIC.exe Token: SeSecurityPrivilege 2584 WMIC.exe Token: SeTakeOwnershipPrivilege 2584 WMIC.exe Token: SeLoadDriverPrivilege 2584 WMIC.exe Token: SeSystemProfilePrivilege 2584 WMIC.exe Token: SeSystemtimePrivilege 2584 WMIC.exe Token: SeProfSingleProcessPrivilege 2584 WMIC.exe Token: SeIncBasePriorityPrivilege 2584 WMIC.exe Token: SeCreatePagefilePrivilege 2584 WMIC.exe Token: SeBackupPrivilege 2584 WMIC.exe Token: SeRestorePrivilege 2584 WMIC.exe Token: SeShutdownPrivilege 2584 WMIC.exe Token: SeDebugPrivilege 2584 WMIC.exe Token: SeSystemEnvironmentPrivilege 2584 WMIC.exe Token: SeRemoteShutdownPrivilege 2584 WMIC.exe Token: SeUndockPrivilege 2584 WMIC.exe Token: SeManageVolumePrivilege 2584 WMIC.exe Token: 33 2584 WMIC.exe Token: 34 2584 WMIC.exe Token: 35 2584 WMIC.exe Token: 36 2584 WMIC.exe Token: SeBackupPrivilege 1496 wbengine.exe Token: SeRestorePrivilege 1496 wbengine.exe Token: SeSecurityPrivilege 1496 wbengine.exe Token: SeManageVolumePrivilege 2504 svchost.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3096 wrote to memory of 3868 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 91 PID 3096 wrote to memory of 3868 3096 2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe 91 PID 3868 wrote to memory of 2596 3868 Private Chat.exe 98 PID 3868 wrote to memory of 2596 3868 Private Chat.exe 98 PID 2596 wrote to memory of 1996 2596 cmd.exe 100 PID 2596 wrote to memory of 1996 2596 cmd.exe 100 PID 2596 wrote to memory of 2584 2596 cmd.exe 103 PID 2596 wrote to memory of 2584 2596 cmd.exe 103 PID 3868 wrote to memory of 3952 3868 Private Chat.exe 104 PID 3868 wrote to memory of 3952 3868 Private Chat.exe 104 PID 3952 wrote to memory of 4948 3952 cmd.exe 106 PID 3952 wrote to memory of 4948 3952 cmd.exe 106 PID 3952 wrote to memory of 2836 3952 cmd.exe 107 PID 3952 wrote to memory of 2836 3952 cmd.exe 107 PID 3868 wrote to memory of 3772 3868 Private Chat.exe 108 PID 3868 wrote to memory of 3772 3868 Private Chat.exe 108 PID 3772 wrote to memory of 4076 3772 cmd.exe 110 PID 3772 wrote to memory of 4076 3772 cmd.exe 110 PID 3868 wrote to memory of 4564 3868 Private Chat.exe 115 PID 3868 wrote to memory of 4564 3868 Private Chat.exe 115 -
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\2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-24_8d6cf920922372018823199536ab94b9_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Users\Admin\AppData\Roaming\Private Chat.exe"C:\Users\Admin\AppData\Roaming\Private Chat.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3868 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2596 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:1996
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2584
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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:3952 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4948
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2836
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3772 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4076
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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:4564
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1320
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1496
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2420
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4352
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:3148
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2504
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
16KB
MD502067b50f102d655061d9038573c9126
SHA196f8862b82f073f202a12d5afa51e4acfbd9f371
SHA256bdabf4e16f0ddb6654d45ea7c81c9dbfd66177cc4e98f17e96409c0a55e46005
SHA51236116a6710385d68b7f316b1012cdc03a2f974a2744d870b43fb9177a920cd44b8087694450f5573f7d0862333bf02cb4668c29804e0c7343924cbbdccfa888b
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Filesize
124KB
MD58d6cf920922372018823199536ab94b9
SHA1c93931bbdda0f4efe54f5eaa7dd04c362d93689a
SHA25662a1c371bea432fcd5707d25810ab573b6ec269625c59db9539e3939d3fe9554
SHA51211a4499b072c1dabe61c19acb29da374b4d4979c2581bcc49c3bae43f5bec295d03d9af74158152f95310eb3aedfff3bac92c0d9f3f063fba283caeee5c5f41c
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Filesize
1KB
MD5c748d4e5fedf548bc3d2516a68b2055f
SHA11e3bcd8e55cbc0abb37e8812df4be12a4b19ac3d
SHA2561015fb7b4dc41f629cbcf4875ad83df7d1720ae66b5a099ed39c0bdc205b3258
SHA512e7b744a85a87c3695a9a60761459299f4c1a812030498e8de31d034a2934f49882d0228a6fe50dd4cae2d281d4af96348972267664c9431b629459824356487a