Analysis
-
max time kernel
26s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
30-01-2025 16:27
Behavioral task
behavioral1
Sample
2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
Resource
win10v2004-20250129-en
General
-
Target
2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe
-
Size
24KB
-
MD5
e268d6f87640a4031cde75775c37e289
-
SHA1
0045a30dc57eb37a5210cace55295fdebc057472
-
SHA256
a5379455e745a667baa6b3f6e76dcd161b55d136cc5ccdc3a38f793bc2e51060
-
SHA512
8cfbffe5346ebe05412125666c0ec582967af2c81269f1c659c9198c314198f581acc68c59f48c372c0781af64bbfd0859c274e923723ad77a27eb1fca4acf3c
-
SSDEEP
384:s3Mg/bqo2vkhI6MxdDpzAD4+X0Z/BJxr91CWKvbnjeZ:Sqo28hwLpzu4+kRvxr9zKvbjeZ
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
Signatures
-
Chaos
Ransomware family first seen in June 2021.
-
Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2304-1-0x0000000001170000-0x000000000117C000-memory.dmp family_chaos behavioral1/files/0x000c000000012264-5.dat family_chaos behavioral1/memory/2968-7-0x0000000000EE0000-0x0000000000EEC000-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 1728 bcdedit.exe 2384 bcdedit.exe -
Renames multiple (220) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
pid Process 1768 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 2968 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Drops desktop.ini file(s) 34 IoCs
description 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\Music\Sample Music\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\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\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\Admin\Favorites\Links\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\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\Downloads\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\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Pictures\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\Start Menu\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\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Searches\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 836 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 688 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2968 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2304 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe 2968 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2304 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 2968 svchost.exe Token: SeBackupPrivilege 2140 vssvc.exe Token: SeRestorePrivilege 2140 vssvc.exe Token: SeAuditPrivilege 2140 vssvc.exe Token: SeIncreaseQuotaPrivilege 1956 WMIC.exe Token: SeSecurityPrivilege 1956 WMIC.exe Token: SeTakeOwnershipPrivilege 1956 WMIC.exe Token: SeLoadDriverPrivilege 1956 WMIC.exe Token: SeSystemProfilePrivilege 1956 WMIC.exe Token: SeSystemtimePrivilege 1956 WMIC.exe Token: SeProfSingleProcessPrivilege 1956 WMIC.exe Token: SeIncBasePriorityPrivilege 1956 WMIC.exe Token: SeCreatePagefilePrivilege 1956 WMIC.exe Token: SeBackupPrivilege 1956 WMIC.exe Token: SeRestorePrivilege 1956 WMIC.exe Token: SeShutdownPrivilege 1956 WMIC.exe Token: SeDebugPrivilege 1956 WMIC.exe Token: SeSystemEnvironmentPrivilege 1956 WMIC.exe Token: SeRemoteShutdownPrivilege 1956 WMIC.exe Token: SeUndockPrivilege 1956 WMIC.exe Token: SeManageVolumePrivilege 1956 WMIC.exe Token: 33 1956 WMIC.exe Token: 34 1956 WMIC.exe Token: 35 1956 WMIC.exe Token: SeIncreaseQuotaPrivilege 1956 WMIC.exe Token: SeSecurityPrivilege 1956 WMIC.exe Token: SeTakeOwnershipPrivilege 1956 WMIC.exe Token: SeLoadDriverPrivilege 1956 WMIC.exe Token: SeSystemProfilePrivilege 1956 WMIC.exe Token: SeSystemtimePrivilege 1956 WMIC.exe Token: SeProfSingleProcessPrivilege 1956 WMIC.exe Token: SeIncBasePriorityPrivilege 1956 WMIC.exe Token: SeCreatePagefilePrivilege 1956 WMIC.exe Token: SeBackupPrivilege 1956 WMIC.exe Token: SeRestorePrivilege 1956 WMIC.exe Token: SeShutdownPrivilege 1956 WMIC.exe Token: SeDebugPrivilege 1956 WMIC.exe Token: SeSystemEnvironmentPrivilege 1956 WMIC.exe Token: SeRemoteShutdownPrivilege 1956 WMIC.exe Token: SeUndockPrivilege 1956 WMIC.exe Token: SeManageVolumePrivilege 1956 WMIC.exe Token: 33 1956 WMIC.exe Token: 34 1956 WMIC.exe Token: 35 1956 WMIC.exe Token: SeBackupPrivilege 1364 wbengine.exe Token: SeRestorePrivilege 1364 wbengine.exe Token: SeSecurityPrivilege 1364 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2304 wrote to memory of 2968 2304 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 29 PID 2304 wrote to memory of 2968 2304 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 29 PID 2304 wrote to memory of 2968 2304 2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe 29 PID 2968 wrote to memory of 1248 2968 svchost.exe 31 PID 2968 wrote to memory of 1248 2968 svchost.exe 31 PID 2968 wrote to memory of 1248 2968 svchost.exe 31 PID 1248 wrote to memory of 836 1248 cmd.exe 33 PID 1248 wrote to memory of 836 1248 cmd.exe 33 PID 1248 wrote to memory of 836 1248 cmd.exe 33 PID 1248 wrote to memory of 1956 1248 cmd.exe 37 PID 1248 wrote to memory of 1956 1248 cmd.exe 37 PID 1248 wrote to memory of 1956 1248 cmd.exe 37 PID 2968 wrote to memory of 1300 2968 svchost.exe 39 PID 2968 wrote to memory of 1300 2968 svchost.exe 39 PID 2968 wrote to memory of 1300 2968 svchost.exe 39 PID 1300 wrote to memory of 1728 1300 cmd.exe 41 PID 1300 wrote to memory of 1728 1300 cmd.exe 41 PID 1300 wrote to memory of 1728 1300 cmd.exe 41 PID 1300 wrote to memory of 2384 1300 cmd.exe 42 PID 1300 wrote to memory of 2384 1300 cmd.exe 42 PID 1300 wrote to memory of 2384 1300 cmd.exe 42 PID 2968 wrote to memory of 2528 2968 svchost.exe 43 PID 2968 wrote to memory of 2528 2968 svchost.exe 43 PID 2968 wrote to memory of 2528 2968 svchost.exe 43 PID 2528 wrote to memory of 1768 2528 cmd.exe 45 PID 2528 wrote to memory of 1768 2528 cmd.exe 45 PID 2528 wrote to memory of 1768 2528 cmd.exe 45 PID 2968 wrote to memory of 688 2968 svchost.exe 49 PID 2968 wrote to memory of 688 2968 svchost.exe 49 PID 2968 wrote to memory of 688 2968 svchost.exe 49 -
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\2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-30_e268d6f87640a4031cde75775c37e289_chaos_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304 -
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:2968 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:836
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1956
-
-
-
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:1300 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1728
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2384
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1768
-
-
-
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:688
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2140
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1364
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:540
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2164
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
24KB
MD5e268d6f87640a4031cde75775c37e289
SHA10045a30dc57eb37a5210cace55295fdebc057472
SHA256a5379455e745a667baa6b3f6e76dcd161b55d136cc5ccdc3a38f793bc2e51060
SHA5128cfbffe5346ebe05412125666c0ec582967af2c81269f1c659c9198c314198f581acc68c59f48c372c0781af64bbfd0859c274e923723ad77a27eb1fca4acf3c
-
Filesize
1KB
MD5c06fc790feb3e340e96cf976343babd3
SHA17bc072599d6bb1b16b3d37fee85b45f35221226a
SHA25649808ee2bfdb940fd396309f64d6b717fdaaf87bd3cc14c6a0a38c3b3008ac22
SHA512a3df59409c15163b6b5561997f4d67fab0957f0d6d033017ab0297ff7ed4028aa3837aa04af6275779dd4e32497bc5b3bb94d747a9c367e93ffad9cad1c79c8d