Analysis Overview
SHA256
98736243426e6edb1b4aff08edce38d22069e387c26f1a25e43ac8270fd2964c
Threat Level: Known bad
The file 1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.7z was found to be: Known bad.
Malicious Activity Summary
Avaddon payload
Avaddon family
UAC bypass
Process spawned unexpected child process
Avaddon
Deletes shadow copies
Renames multiple (176) files with added filename extension
Drops desktop.ini file(s)
Enumerates connected drives
Checks whether UAC is enabled
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Uses Volume Shadow Copy service COM API
Interacts with shadow copies
Opens file in notepad (likely ransom note)
System policy modification
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-07-24 17:11
Signatures
Avaddon family
Avaddon payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-24 17:11
Reported
2024-07-24 17:12
Platform
win10-20240404-en
Max time kernel
29s
Max time network
30s
Command Line
Signatures
Avaddon
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\wbem\wmic.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\wbem\wmic.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\wbem\wmic.exe |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
Deletes shadow copies
Renames multiple (176) files with added filename extension
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | \??\Z:\$RECYCLE.BIN\S-1-5-21-4106386276-4127174233-3637007343-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
Enumerates connected drives
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\vssadmin.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\vssadmin.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\vssadmin.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
Interacts with shadow copies
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\vssadmin.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\vssadmin.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\vssadmin.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\NOTEPAD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 36 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: 36 | N/A | C:\Windows\SysWOW64\Wbem\wmic.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 36 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" | C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe | N/A |
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe
"C:\Users\Admin\AppData\Local\Temp\1228d0f04f0ba82569fc1c0609f9fd6c377a91b9ea44c1e7f9f84b2b90552da2.exe"
C:\Windows\system32\wbem\wmic.exe
wmic SHADOWCOPY DELETE /nointeractive
C:\Windows\system32\wbem\wmic.exe
wmic SHADOWCOPY DELETE /nointeractive
C:\Windows\system32\wbem\wmic.exe
wmic SHADOWCOPY DELETE /nointeractive
C:\Windows\SysWOW64\Wbem\wmic.exe
wmic SHADOWCOPY DELETE /nointeractive
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\SysWOW64\vssadmin.exe
vssadmin Delete Shadows /All /Quiet
C:\Windows\SysWOW64\Wbem\wmic.exe
wmic SHADOWCOPY DELETE /nointeractive
C:\Windows\SysWOW64\vssadmin.exe
vssadmin Delete Shadows /All /Quiet
C:\Windows\SysWOW64\Wbem\wmic.exe
wmic SHADOWCOPY DELETE /nointeractive
C:\Windows\SysWOW64\vssadmin.exe
vssadmin Delete Shadows /All /Quiet
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\sURPGzk_readme_.txt
Network
| Country | Destination | Domain | Proto |
| N/A | 10.127.0.1:445 | tcp | |
| N/A | 10.127.0.1:139 | tcp |
Files
C:\Users\Admin\Documents\OneNote Notebooks\sURPGzk_readme_.txt
| MD5 | 59121f993691cf913c08184547a064db |
| SHA1 | 8d8a5a3e92441d5d6fe463215a5b7f14619f8b93 |
| SHA256 | a16b679f7166a8995bde18628a96fb63fec1a2c8e230bb6a4d2f62fb80d7926c |
| SHA512 | 42de6ce75e1f8d54973fa76199af0da259bc58b227c34413bdb57891b8af37c9775f2d2251aed4c5403484c2b4d15d50997194830588df707e01bf2c4e3b82d4 |
C:\Users\Admin\Desktop\sURPGzk_readme_.txt
| MD5 | 71c9dfcf75a73ae286631bbbfeb74da6 |
| SHA1 | a1b77f0f7ee28865c38f6010ddee8a435e64f2cc |
| SHA256 | e95089030c641f744aea21a08f56a2f687c3454e73aeb0ddbe1797c1d52eb52f |
| SHA512 | fcaf228fd9018ef8fd3bf2fddd60f8b9fd3a862eb26ff618fc44378f77ae05e07fe063e3dbe80e6485861d4750795d8bf5c08690584b8f8a602bcc1b55834d54 |