Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-09-2024 15:24
Behavioral task
behavioral1
Sample
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
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Size
26KB
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MD5
9a0a653a28144ed4aef29c405eed6cd5
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SHA1
80b6f3d4ea6efd4bec02cb6864a179ffcbf7ea5e
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SHA256
a37e08164fbf4bcfe5e4a8b818ec45b150f0e4206a1ecb84489a5e34c7d528cb
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SHA512
0a98cd89d9693f7984826f0ed4cb54bf359415b2a203fc19631c12d982cd5b80c160e8b7315689cbb2df9a1eac0e79d99df0c82bd86662f7916020177eba17e7
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SSDEEP
384:A3Mg/bqo2vLPQUvuIqpm9FOjUJnr91Cep4DqHaQ0jseO:+qo2MU0pIOj8nr9N+DqHEIeO
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
https://tox.chat/download.html
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1128-1-0x0000000000880000-0x000000000088C000-memory.dmp family_chaos C:\Users\Admin\AppData\Roaming\svchost.exe family_chaos behavioral1/memory/2316-7-0x0000000000A30000-0x0000000000A3C000-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
Processes:
bcdedit.exebcdedit.exepid process 2216 bcdedit.exe 1540 bcdedit.exe -
Processes:
wbadmin.exepid process 3020 wbadmin.exe -
Drops startup file 3 IoCs
Processes:
svchost.exedescription 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\read_it.txt svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 2316 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
Processes:
svchost.exedescription ioc process File opened for modification C:\Users\Admin\Music\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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-1-5-21-1488793075-819845221-1497111674-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Documents\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\Downloads\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Searches\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\Recent\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\Videos\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.
Processes:
vssadmin.exepid process 2412 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 1704 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
svchost.exepid process 2316 svchost.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exesvchost.exepid process 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe 2316 svchost.exe 2316 svchost.exe 2316 svchost.exe 2316 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exedescription pid process Token: SeDebugPrivilege 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe Token: SeDebugPrivilege 2316 svchost.exe Token: SeBackupPrivilege 2928 vssvc.exe Token: SeRestorePrivilege 2928 vssvc.exe Token: SeAuditPrivilege 2928 vssvc.exe Token: SeIncreaseQuotaPrivilege 1820 WMIC.exe Token: SeSecurityPrivilege 1820 WMIC.exe Token: SeTakeOwnershipPrivilege 1820 WMIC.exe Token: SeLoadDriverPrivilege 1820 WMIC.exe Token: SeSystemProfilePrivilege 1820 WMIC.exe Token: SeSystemtimePrivilege 1820 WMIC.exe Token: SeProfSingleProcessPrivilege 1820 WMIC.exe Token: SeIncBasePriorityPrivilege 1820 WMIC.exe Token: SeCreatePagefilePrivilege 1820 WMIC.exe Token: SeBackupPrivilege 1820 WMIC.exe Token: SeRestorePrivilege 1820 WMIC.exe Token: SeShutdownPrivilege 1820 WMIC.exe Token: SeDebugPrivilege 1820 WMIC.exe Token: SeSystemEnvironmentPrivilege 1820 WMIC.exe Token: SeRemoteShutdownPrivilege 1820 WMIC.exe Token: SeUndockPrivilege 1820 WMIC.exe Token: SeManageVolumePrivilege 1820 WMIC.exe Token: 33 1820 WMIC.exe Token: 34 1820 WMIC.exe Token: 35 1820 WMIC.exe Token: SeIncreaseQuotaPrivilege 1820 WMIC.exe Token: SeSecurityPrivilege 1820 WMIC.exe Token: SeTakeOwnershipPrivilege 1820 WMIC.exe Token: SeLoadDriverPrivilege 1820 WMIC.exe Token: SeSystemProfilePrivilege 1820 WMIC.exe Token: SeSystemtimePrivilege 1820 WMIC.exe Token: SeProfSingleProcessPrivilege 1820 WMIC.exe Token: SeIncBasePriorityPrivilege 1820 WMIC.exe Token: SeCreatePagefilePrivilege 1820 WMIC.exe Token: SeBackupPrivilege 1820 WMIC.exe Token: SeRestorePrivilege 1820 WMIC.exe Token: SeShutdownPrivilege 1820 WMIC.exe Token: SeDebugPrivilege 1820 WMIC.exe Token: SeSystemEnvironmentPrivilege 1820 WMIC.exe Token: SeRemoteShutdownPrivilege 1820 WMIC.exe Token: SeUndockPrivilege 1820 WMIC.exe Token: SeManageVolumePrivilege 1820 WMIC.exe Token: 33 1820 WMIC.exe Token: 34 1820 WMIC.exe Token: 35 1820 WMIC.exe Token: SeBackupPrivilege 1012 wbengine.exe Token: SeRestorePrivilege 1012 wbengine.exe Token: SeSecurityPrivilege 1012 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exesvchost.execmd.execmd.execmd.exedescription pid process target process PID 1128 wrote to memory of 2316 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe svchost.exe PID 1128 wrote to memory of 2316 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe svchost.exe PID 1128 wrote to memory of 2316 1128 2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe svchost.exe PID 2316 wrote to memory of 1924 2316 svchost.exe cmd.exe PID 2316 wrote to memory of 1924 2316 svchost.exe cmd.exe PID 2316 wrote to memory of 1924 2316 svchost.exe cmd.exe PID 1924 wrote to memory of 2412 1924 cmd.exe vssadmin.exe PID 1924 wrote to memory of 2412 1924 cmd.exe vssadmin.exe PID 1924 wrote to memory of 2412 1924 cmd.exe vssadmin.exe PID 1924 wrote to memory of 1820 1924 cmd.exe WMIC.exe PID 1924 wrote to memory of 1820 1924 cmd.exe WMIC.exe PID 1924 wrote to memory of 1820 1924 cmd.exe WMIC.exe PID 2316 wrote to memory of 1524 2316 svchost.exe cmd.exe PID 2316 wrote to memory of 1524 2316 svchost.exe cmd.exe PID 2316 wrote to memory of 1524 2316 svchost.exe cmd.exe PID 1524 wrote to memory of 2216 1524 cmd.exe bcdedit.exe PID 1524 wrote to memory of 2216 1524 cmd.exe bcdedit.exe PID 1524 wrote to memory of 2216 1524 cmd.exe bcdedit.exe PID 1524 wrote to memory of 1540 1524 cmd.exe bcdedit.exe PID 1524 wrote to memory of 1540 1524 cmd.exe bcdedit.exe PID 1524 wrote to memory of 1540 1524 cmd.exe bcdedit.exe PID 2316 wrote to memory of 2380 2316 svchost.exe cmd.exe PID 2316 wrote to memory of 2380 2316 svchost.exe cmd.exe PID 2316 wrote to memory of 2380 2316 svchost.exe cmd.exe PID 2380 wrote to memory of 3020 2380 cmd.exe wbadmin.exe PID 2380 wrote to memory of 3020 2380 cmd.exe wbadmin.exe PID 2380 wrote to memory of 3020 2380 cmd.exe wbadmin.exe PID 2316 wrote to memory of 1704 2316 svchost.exe NOTEPAD.EXE PID 2316 wrote to memory of 1704 2316 svchost.exe NOTEPAD.EXE PID 2316 wrote to memory of 1704 2316 svchost.exe NOTEPAD.EXE -
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\2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128 -
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:2316 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2412 -
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1820 -
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:1524 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2216 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1540 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3020 -
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:1704
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2928
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1012
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2488
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2352
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
26KB
MD59a0a653a28144ed4aef29c405eed6cd5
SHA180b6f3d4ea6efd4bec02cb6864a179ffcbf7ea5e
SHA256a37e08164fbf4bcfe5e4a8b818ec45b150f0e4206a1ecb84489a5e34c7d528cb
SHA5120a98cd89d9693f7984826f0ed4cb54bf359415b2a203fc19631c12d982cd5b80c160e8b7315689cbb2df9a1eac0e79d99df0c82bd86662f7916020177eba17e7
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Filesize
2KB
MD5054c24bebee63e5f3cbbbf70b8548942
SHA15a2e4f1882f7c76dce6b4d2b610485ae5852789d
SHA2563ddc818e4b33b6b08abee5564011530939aa8a6f601ec00d672a31aeab9bf09f
SHA5123168fcd8340945458503f35aa482f378435d3929eba614b5af61a4191bf83a39b231fc947b54539f9553e43f9f5125ba51b872bc84b783c1fa77b38a30ed3094