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Analysis
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max time kernel
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max time network
118s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
22/08/2024, 11:23
Behavioral task
behavioral1
Sample
2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe
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Size
99KB
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MD5
28298b6df0cae8d9924855f4b8f30887
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SHA1
a2ae55d631806d3401ce7bd75f1468bbccacd506
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SHA256
c6fd39c1f83f102251c3795aea155568df193e8a9e2bccde398a7caa4cf35cc4
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SHA512
5ee73a23fa0f49c6f9546cd6e023d77e63e3f2f117890e104ed48ab84030699cd66d2a404fe402969696fa696b379b3655578ed2de4fcce14feafb78a6e1c1b7
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SSDEEP
384:8kMg/bqoymcxtinPvD76UJFr91CnmoWVonPRGlmIxb5Mez:Hqoyptov68Fr90mo4onPg4Ixbaez
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
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/1628-1-0x0000000000BF0000-0x0000000000C12000-memory.dmp family_chaos behavioral1/files/0x00080000000120ff-5.dat family_chaos behavioral1/memory/2120-7-0x0000000000340000-0x0000000000362000-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 2676 bcdedit.exe 2572 bcdedit.exe -
pid Process 2988 wbadmin.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\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2120 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) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\Links\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\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Libraries\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\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Accessories\Accessibility\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\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Public\Pictures\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\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3450744190-3404161390-554719085-1000\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\Admin\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 -
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 2596 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1968 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2120 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1628 2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe 1628 2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe 2120 svchost.exe 2120 svchost.exe 2120 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1628 2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe Token: SeDebugPrivilege 2120 svchost.exe Token: SeBackupPrivilege 2480 vssvc.exe Token: SeRestorePrivilege 2480 vssvc.exe Token: SeAuditPrivilege 2480 vssvc.exe Token: SeIncreaseQuotaPrivilege 1500 WMIC.exe Token: SeSecurityPrivilege 1500 WMIC.exe Token: SeTakeOwnershipPrivilege 1500 WMIC.exe Token: SeLoadDriverPrivilege 1500 WMIC.exe Token: SeSystemProfilePrivilege 1500 WMIC.exe Token: SeSystemtimePrivilege 1500 WMIC.exe Token: SeProfSingleProcessPrivilege 1500 WMIC.exe Token: SeIncBasePriorityPrivilege 1500 WMIC.exe Token: SeCreatePagefilePrivilege 1500 WMIC.exe Token: SeBackupPrivilege 1500 WMIC.exe Token: SeRestorePrivilege 1500 WMIC.exe Token: SeShutdownPrivilege 1500 WMIC.exe Token: SeDebugPrivilege 1500 WMIC.exe Token: SeSystemEnvironmentPrivilege 1500 WMIC.exe Token: SeRemoteShutdownPrivilege 1500 WMIC.exe Token: SeUndockPrivilege 1500 WMIC.exe Token: SeManageVolumePrivilege 1500 WMIC.exe Token: 33 1500 WMIC.exe Token: 34 1500 WMIC.exe Token: 35 1500 WMIC.exe Token: SeIncreaseQuotaPrivilege 1500 WMIC.exe Token: SeSecurityPrivilege 1500 WMIC.exe Token: SeTakeOwnershipPrivilege 1500 WMIC.exe Token: SeLoadDriverPrivilege 1500 WMIC.exe Token: SeSystemProfilePrivilege 1500 WMIC.exe Token: SeSystemtimePrivilege 1500 WMIC.exe Token: SeProfSingleProcessPrivilege 1500 WMIC.exe Token: SeIncBasePriorityPrivilege 1500 WMIC.exe Token: SeCreatePagefilePrivilege 1500 WMIC.exe Token: SeBackupPrivilege 1500 WMIC.exe Token: SeRestorePrivilege 1500 WMIC.exe Token: SeShutdownPrivilege 1500 WMIC.exe Token: SeDebugPrivilege 1500 WMIC.exe Token: SeSystemEnvironmentPrivilege 1500 WMIC.exe Token: SeRemoteShutdownPrivilege 1500 WMIC.exe Token: SeUndockPrivilege 1500 WMIC.exe Token: SeManageVolumePrivilege 1500 WMIC.exe Token: 33 1500 WMIC.exe Token: 34 1500 WMIC.exe Token: 35 1500 WMIC.exe Token: SeBackupPrivilege 2848 wbengine.exe Token: SeRestorePrivilege 2848 wbengine.exe Token: SeSecurityPrivilege 2848 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1628 wrote to memory of 2120 1628 2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe 28 PID 1628 wrote to memory of 2120 1628 2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe 28 PID 1628 wrote to memory of 2120 1628 2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe 28 PID 2120 wrote to memory of 2508 2120 svchost.exe 30 PID 2120 wrote to memory of 2508 2120 svchost.exe 30 PID 2120 wrote to memory of 2508 2120 svchost.exe 30 PID 2508 wrote to memory of 2596 2508 cmd.exe 32 PID 2508 wrote to memory of 2596 2508 cmd.exe 32 PID 2508 wrote to memory of 2596 2508 cmd.exe 32 PID 2508 wrote to memory of 1500 2508 cmd.exe 35 PID 2508 wrote to memory of 1500 2508 cmd.exe 35 PID 2508 wrote to memory of 1500 2508 cmd.exe 35 PID 2120 wrote to memory of 2044 2120 svchost.exe 37 PID 2120 wrote to memory of 2044 2120 svchost.exe 37 PID 2120 wrote to memory of 2044 2120 svchost.exe 37 PID 2044 wrote to memory of 2676 2044 cmd.exe 39 PID 2044 wrote to memory of 2676 2044 cmd.exe 39 PID 2044 wrote to memory of 2676 2044 cmd.exe 39 PID 2044 wrote to memory of 2572 2044 cmd.exe 40 PID 2044 wrote to memory of 2572 2044 cmd.exe 40 PID 2044 wrote to memory of 2572 2044 cmd.exe 40 PID 2120 wrote to memory of 2672 2120 svchost.exe 41 PID 2120 wrote to memory of 2672 2120 svchost.exe 41 PID 2120 wrote to memory of 2672 2120 svchost.exe 41 PID 2672 wrote to memory of 2988 2672 cmd.exe 43 PID 2672 wrote to memory of 2988 2672 cmd.exe 43 PID 2672 wrote to memory of 2988 2672 cmd.exe 43 PID 2120 wrote to memory of 1968 2120 svchost.exe 47 PID 2120 wrote to memory of 1968 2120 svchost.exe 47 PID 2120 wrote to memory of 1968 2120 svchost.exe 47 -
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\2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-22_28298b6df0cae8d9924855f4b8f30887_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628 -
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)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2508 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2596
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1500
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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:2044 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2676
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2572
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2672 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2988
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:1968
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2480
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2848
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2368
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:696
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
99KB
MD528298b6df0cae8d9924855f4b8f30887
SHA1a2ae55d631806d3401ce7bd75f1468bbccacd506
SHA256c6fd39c1f83f102251c3795aea155568df193e8a9e2bccde398a7caa4cf35cc4
SHA5125ee73a23fa0f49c6f9546cd6e023d77e63e3f2f117890e104ed48ab84030699cd66d2a404fe402969696fa696b379b3655578ed2de4fcce14feafb78a6e1c1b7
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740