Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
16-09-2024 18:09
Behavioral task
behavioral1
Sample
202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe
Resource
win10v2004-20240802-en
General
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Target
202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.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/2364-1-0x0000000000830000-0x000000000083C000-memory.dmp family_chaos C:\Users\Admin\AppData\Roaming\svchost.exe family_chaos behavioral1/memory/2700-7-0x00000000008A0000-0x00000000008AC000-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 1624 bcdedit.exe 844 bcdedit.exe -
Processes:
wbadmin.exepid process 568 wbadmin.exe -
Drops startup file 3 IoCs
Processes:
svchost.exedescription 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
Processes:
svchost.exepid process 2700 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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\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\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Public\Pictures\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\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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 F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\Recent\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\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Public\Pictures\Sample 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\Desktop\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 -
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 1864 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 1316 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
svchost.exepid process 2700 svchost.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exesvchost.exepid process 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe 2700 svchost.exe 2700 svchost.exe 2700 svchost.exe 2700 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exedescription pid process Token: SeDebugPrivilege 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe Token: SeDebugPrivilege 2700 svchost.exe Token: SeBackupPrivilege 2260 vssvc.exe Token: SeRestorePrivilege 2260 vssvc.exe Token: SeAuditPrivilege 2260 vssvc.exe Token: SeIncreaseQuotaPrivilege 2388 WMIC.exe Token: SeSecurityPrivilege 2388 WMIC.exe Token: SeTakeOwnershipPrivilege 2388 WMIC.exe Token: SeLoadDriverPrivilege 2388 WMIC.exe Token: SeSystemProfilePrivilege 2388 WMIC.exe Token: SeSystemtimePrivilege 2388 WMIC.exe Token: SeProfSingleProcessPrivilege 2388 WMIC.exe Token: SeIncBasePriorityPrivilege 2388 WMIC.exe Token: SeCreatePagefilePrivilege 2388 WMIC.exe Token: SeBackupPrivilege 2388 WMIC.exe Token: SeRestorePrivilege 2388 WMIC.exe Token: SeShutdownPrivilege 2388 WMIC.exe Token: SeDebugPrivilege 2388 WMIC.exe Token: SeSystemEnvironmentPrivilege 2388 WMIC.exe Token: SeRemoteShutdownPrivilege 2388 WMIC.exe Token: SeUndockPrivilege 2388 WMIC.exe Token: SeManageVolumePrivilege 2388 WMIC.exe Token: 33 2388 WMIC.exe Token: 34 2388 WMIC.exe Token: 35 2388 WMIC.exe Token: SeIncreaseQuotaPrivilege 2388 WMIC.exe Token: SeSecurityPrivilege 2388 WMIC.exe Token: SeTakeOwnershipPrivilege 2388 WMIC.exe Token: SeLoadDriverPrivilege 2388 WMIC.exe Token: SeSystemProfilePrivilege 2388 WMIC.exe Token: SeSystemtimePrivilege 2388 WMIC.exe Token: SeProfSingleProcessPrivilege 2388 WMIC.exe Token: SeIncBasePriorityPrivilege 2388 WMIC.exe Token: SeCreatePagefilePrivilege 2388 WMIC.exe Token: SeBackupPrivilege 2388 WMIC.exe Token: SeRestorePrivilege 2388 WMIC.exe Token: SeShutdownPrivilege 2388 WMIC.exe Token: SeDebugPrivilege 2388 WMIC.exe Token: SeSystemEnvironmentPrivilege 2388 WMIC.exe Token: SeRemoteShutdownPrivilege 2388 WMIC.exe Token: SeUndockPrivilege 2388 WMIC.exe Token: SeManageVolumePrivilege 2388 WMIC.exe Token: 33 2388 WMIC.exe Token: 34 2388 WMIC.exe Token: 35 2388 WMIC.exe Token: SeBackupPrivilege 1060 wbengine.exe Token: SeRestorePrivilege 1060 wbengine.exe Token: SeSecurityPrivilege 1060 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exesvchost.execmd.execmd.execmd.exedescription pid process target process PID 2364 wrote to memory of 2700 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe svchost.exe PID 2364 wrote to memory of 2700 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe svchost.exe PID 2364 wrote to memory of 2700 2364 202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe svchost.exe PID 2700 wrote to memory of 2888 2700 svchost.exe cmd.exe PID 2700 wrote to memory of 2888 2700 svchost.exe cmd.exe PID 2700 wrote to memory of 2888 2700 svchost.exe cmd.exe PID 2888 wrote to memory of 1864 2888 cmd.exe vssadmin.exe PID 2888 wrote to memory of 1864 2888 cmd.exe vssadmin.exe PID 2888 wrote to memory of 1864 2888 cmd.exe vssadmin.exe PID 2888 wrote to memory of 2388 2888 cmd.exe WMIC.exe PID 2888 wrote to memory of 2388 2888 cmd.exe WMIC.exe PID 2888 wrote to memory of 2388 2888 cmd.exe WMIC.exe PID 2700 wrote to memory of 1824 2700 svchost.exe cmd.exe PID 2700 wrote to memory of 1824 2700 svchost.exe cmd.exe PID 2700 wrote to memory of 1824 2700 svchost.exe cmd.exe PID 1824 wrote to memory of 844 1824 cmd.exe bcdedit.exe PID 1824 wrote to memory of 844 1824 cmd.exe bcdedit.exe PID 1824 wrote to memory of 844 1824 cmd.exe bcdedit.exe PID 1824 wrote to memory of 1624 1824 cmd.exe bcdedit.exe PID 1824 wrote to memory of 1624 1824 cmd.exe bcdedit.exe PID 1824 wrote to memory of 1624 1824 cmd.exe bcdedit.exe PID 2700 wrote to memory of 1384 2700 svchost.exe cmd.exe PID 2700 wrote to memory of 1384 2700 svchost.exe cmd.exe PID 2700 wrote to memory of 1384 2700 svchost.exe cmd.exe PID 1384 wrote to memory of 568 1384 cmd.exe wbadmin.exe PID 1384 wrote to memory of 568 1384 cmd.exe wbadmin.exe PID 1384 wrote to memory of 568 1384 cmd.exe wbadmin.exe PID 2700 wrote to memory of 1316 2700 svchost.exe NOTEPAD.EXE PID 2700 wrote to memory of 1316 2700 svchost.exe NOTEPAD.EXE PID 2700 wrote to memory of 1316 2700 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\202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe"C:\Users\Admin\AppData\Local\Temp\202409169a0a653a28144ed4aef29c405eed6cd5destroyerwannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364 -
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:2700 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2888 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:1864 -
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2388 -
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:1824 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:844 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1624 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1384 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:568 -
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:1316
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2260
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1060
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1812
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1940
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