Analysis
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max time kernel
87s -
max time network
160s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
04/06/2021, 16:17
Static task
static1
Behavioral task
behavioral1
Sample
share.exe
Resource
win7v20210408
0 signatures
0 seconds
General
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Target
share.exe
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Size
170KB
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MD5
108d4532a263fca754b85d942bd55451
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SHA1
202a1bf5238322372d1da89850a61c4c050a9edd
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SHA256
b010e408ad75f379646832fa83567596c7918be1a54b80fc2b4207c33e57057d
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SHA512
72735b3c1c03f7cf0462e59d231bddc8490f26a47690b5ca408313a633f9570d9aa140194439ec997d2e5638eae350bb1b9095857d9bd467e8488efbdd27638a
Malware Config
Signatures
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Modifies Windows Firewall 1 TTPs
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Modifies file permissions 1 TTPs 3 IoCs
pid Process 4196 icacls.exe 2808 icacls.exe 4796 icacls.exe -
Enumerates connected drives 3 TTPs 3 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: mountvol.exe File opened (read-only) \??\A: mountvol.exe File opened (read-only) \??\B: mountvol.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Logs\DISM\dism.log powershell.exe -
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 2848 3992 WerFault.exe 29 -
Discovers systems in the same network 1 TTPs 1 IoCs
pid Process 4908 net.exe -
Kills process with taskkill 2 IoCs
pid Process 2372 taskkill.exe 2088 taskkill.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 4056 powershell.exe 3992 share.exe 3992 share.exe 3992 share.exe 4056 powershell.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 4056 powershell.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 4468 powershell.exe 3992 share.exe 3992 share.exe 3992 share.exe 4468 powershell.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 4468 powershell.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe 3992 share.exe -
Suspicious use of AdjustPrivilegeToken 33 IoCs
description pid Process Token: SeDebugPrivilege 3992 share.exe Token: SeDebugPrivilege 2088 taskkill.exe Token: SeDebugPrivilege 2372 taskkill.exe Token: SeDebugPrivilege 4056 powershell.exe Token: SeBackupPrivilege 4332 vssvc.exe Token: SeRestorePrivilege 4332 vssvc.exe Token: SeAuditPrivilege 4332 vssvc.exe Token: SeDebugPrivilege 4468 powershell.exe Token: SeIncreaseQuotaPrivilege 4056 powershell.exe Token: SeSecurityPrivilege 4056 powershell.exe Token: SeTakeOwnershipPrivilege 4056 powershell.exe Token: SeLoadDriverPrivilege 4056 powershell.exe Token: SeSystemProfilePrivilege 4056 powershell.exe Token: SeSystemtimePrivilege 4056 powershell.exe Token: SeProfSingleProcessPrivilege 4056 powershell.exe Token: SeIncBasePriorityPrivilege 4056 powershell.exe Token: SeCreatePagefilePrivilege 4056 powershell.exe Token: SeBackupPrivilege 4056 powershell.exe Token: SeRestorePrivilege 4056 powershell.exe Token: SeShutdownPrivilege 4056 powershell.exe Token: SeDebugPrivilege 4056 powershell.exe Token: SeSystemEnvironmentPrivilege 4056 powershell.exe Token: SeRemoteShutdownPrivilege 4056 powershell.exe Token: SeUndockPrivilege 4056 powershell.exe Token: SeManageVolumePrivilege 4056 powershell.exe Token: 33 4056 powershell.exe Token: 34 4056 powershell.exe Token: 35 4056 powershell.exe Token: 36 4056 powershell.exe Token: SeDebugPrivilege 4368 powershell.exe Token: SeRestorePrivilege 2848 WerFault.exe Token: SeBackupPrivilege 2848 WerFault.exe Token: SeDebugPrivilege 2848 WerFault.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3992 wrote to memory of 3300 3992 share.exe 80 PID 3992 wrote to memory of 3300 3992 share.exe 80 PID 3992 wrote to memory of 3300 3992 share.exe 80 PID 3300 wrote to memory of 3492 3300 csc.exe 81 PID 3300 wrote to memory of 3492 3300 csc.exe 81 PID 3300 wrote to memory of 3492 3300 csc.exe 81 PID 3992 wrote to memory of 2088 3992 share.exe 83 PID 3992 wrote to memory of 2088 3992 share.exe 83 PID 3992 wrote to memory of 2088 3992 share.exe 83 PID 3992 wrote to memory of 2372 3992 share.exe 85 PID 3992 wrote to memory of 2372 3992 share.exe 85 PID 3992 wrote to memory of 2372 3992 share.exe 85 PID 3992 wrote to memory of 3808 3992 share.exe 87 PID 3992 wrote to memory of 3808 3992 share.exe 87 PID 3992 wrote to memory of 3808 3992 share.exe 87 PID 3992 wrote to memory of 2212 3992 share.exe 110 PID 3992 wrote to memory of 2212 3992 share.exe 110 PID 3992 wrote to memory of 2212 3992 share.exe 110 PID 3992 wrote to memory of 2188 3992 share.exe 109 PID 3992 wrote to memory of 2188 3992 share.exe 109 PID 3992 wrote to memory of 2188 3992 share.exe 109 PID 3992 wrote to memory of 932 3992 share.exe 90 PID 3992 wrote to memory of 932 3992 share.exe 90 PID 3992 wrote to memory of 932 3992 share.exe 90 PID 3992 wrote to memory of 1108 3992 share.exe 89 PID 3992 wrote to memory of 1108 3992 share.exe 89 PID 3992 wrote to memory of 1108 3992 share.exe 89 PID 3992 wrote to memory of 1444 3992 share.exe 99 PID 3992 wrote to memory of 1444 3992 share.exe 99 PID 3992 wrote to memory of 1444 3992 share.exe 99 PID 3992 wrote to memory of 2060 3992 share.exe 94 PID 3992 wrote to memory of 2060 3992 share.exe 94 PID 3992 wrote to memory of 2060 3992 share.exe 94 PID 3992 wrote to memory of 3172 3992 share.exe 95 PID 3992 wrote to memory of 3172 3992 share.exe 95 PID 3992 wrote to memory of 3172 3992 share.exe 95 PID 3992 wrote to memory of 1432 3992 share.exe 101 PID 3992 wrote to memory of 1432 3992 share.exe 101 PID 3992 wrote to memory of 1432 3992 share.exe 101 PID 3992 wrote to memory of 3296 3992 share.exe 100 PID 3992 wrote to memory of 3296 3992 share.exe 100 PID 3992 wrote to memory of 3296 3992 share.exe 100 PID 3992 wrote to memory of 4064 3992 share.exe 104 PID 3992 wrote to memory of 4064 3992 share.exe 104 PID 3992 wrote to memory of 4064 3992 share.exe 104 PID 3992 wrote to memory of 4056 3992 share.exe 107 PID 3992 wrote to memory of 4056 3992 share.exe 107 PID 3992 wrote to memory of 4056 3992 share.exe 107 PID 3992 wrote to memory of 844 3992 share.exe 111 PID 3992 wrote to memory of 844 3992 share.exe 111 PID 3992 wrote to memory of 844 3992 share.exe 111 PID 3992 wrote to memory of 4468 3992 share.exe 116 PID 3992 wrote to memory of 4468 3992 share.exe 116 PID 3992 wrote to memory of 4468 3992 share.exe 116 PID 3992 wrote to memory of 4888 3992 share.exe 119 PID 3992 wrote to memory of 4888 3992 share.exe 119 PID 3992 wrote to memory of 4888 3992 share.exe 119 PID 3992 wrote to memory of 4916 3992 share.exe 120 PID 3992 wrote to memory of 4916 3992 share.exe 120 PID 3992 wrote to memory of 4916 3992 share.exe 120 PID 3992 wrote to memory of 4964 3992 share.exe 122 PID 3992 wrote to memory of 4964 3992 share.exe 122 PID 3992 wrote to memory of 4964 3992 share.exe 122 PID 3992 wrote to memory of 4984 3992 share.exe 124 -
System policy modification 1 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\LocalAccountTokenFilterPolicy = "1" share.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" share.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\share.exe"C:\Users\Admin\AppData\Local\Temp\share.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3992 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\dqn4ct3f\dqn4ct3f.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:3300 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESEDFF.tmp" "c:\Users\Admin\AppData\Local\Temp\dqn4ct3f\CSCC5EA8B3F1BA54B2FA6CA1A807C431ABB.TMP"3⤵PID:3492
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM Raccine.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2088
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C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM RaccineSettings.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2372
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /DELETE /TN "Raccine Rules Updater" /F2⤵PID:3808
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" del /s /f /q d:\*.VHD d:\*.bac d:\*.bak d:\*.wbcat d:\*.bkf d:\Backup*.* d:\backup*.* d:\*.set d:\*.win d:\*.dsk2⤵PID:1108
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" del /s /f /q f:\*.VHD f:\*.bac f:\*.bak f:\*.wbcat f:\*.bkf f:\Backup*.* f:\backup*.* f:\*.set f:\*.win f:\*.dsk2⤵PID:932
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" del /s /f /q e:\*.VHD e:\*.bac e:\*.bak e:\*.wbcat e:\*.bkf e:\Backup*.* e:\backup*.* e:\*.set e:\*.win e:\*.dsk2⤵PID:2060
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" del /s /f /q g:\*.VHD g:\*.bac g:\*.bak g:\*.wbcat g:\*.bkf g:\Backup*.* g:\backup*.* g:\*.set g:\*.win g:\*.dsk2⤵PID:3172
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config SQLTELEMETRY$ECWDB2 start= disabled2⤵PID:1444
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" del /s /f /q h:\*.VHD h:\*.bac h:\*.bak h:\*.wbcat h:\*.bkf h:\Backup*.* h:\backup*.* h:\*.set h:\*.win h:\*.dsk2⤵PID:3296
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config SQLWriter start= disabled2⤵PID:1432
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config SstpSvc start= disabled2⤵PID:4064
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Get-CimInstance Win32_ShadowCopy | Remove-CimInstance2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4056
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config SQLTELEMETRY start= disabled2⤵PID:2188
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" del /s /f /q c:\*.VHD c:\*.bac c:\*.bak c:\*.wbcat c:\*.bkf c:\Backup*.* c:\backup*.* c:\*.set c:\*.win c:\*.dsk2⤵PID:2212
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config MBAMService start= disabled2⤵PID:844
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -EnableControlledFolderAccess Disabled2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4468
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c rd /s /q %SYSTEMDRIVE%\\$Recycle.bin2⤵PID:4888
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c rd /s /q D:\\$Recycle.bin2⤵PID:4916
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config Dnscache start= auto2⤵PID:4964
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config upnphost start= auto2⤵PID:5004
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config FDResPub start= auto2⤵PID:4984
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config SSDPSRV start= auto2⤵PID:5108
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" config fdPHost start= auto2⤵PID:5092
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall set rule group="Network Discovery" new enable=Yes2⤵PID:2464
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall set rule group="File and Printer Sharing" new enable=Yes2⤵PID:2960
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Enable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol2⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4368
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C:\Windows\SysWOW64\mountvol.exe"mountvol.exe"2⤵PID:248
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C:\Windows\SysWOW64\mountvol.exe"C:\Windows\System32\mountvol.exe" A: \\?\Volume{266d1ca4-0000-0000-0000-500600000000}\2⤵
- Enumerates connected drives
PID:4568
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C:\Windows\SysWOW64\mountvol.exe"C:\Windows\System32\mountvol.exe" B: \\?\Volume{266d1ca4-0000-0000-0000-100000000000}\2⤵
- Enumerates connected drives
PID:4624
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C:\Windows\SysWOW64\mountvol.exe"C:\Windows\System32\mountvol.exe" E: \\?\Volume{63e50be4-9a0d-11eb-a110-806e6f6e6963}\2⤵
- Enumerates connected drives
PID:4692
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C:\Windows\SysWOW64\icacls.exe"C:\Windows\System32\icacls.exe" "C:*" /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:4796
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C:\Windows\SysWOW64\icacls.exe"C:\Windows\System32\icacls.exe" "Z:*" /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:4196
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C:\Windows\SysWOW64\icacls.exe"C:\Windows\System32\icacls.exe" "D:*" /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:2808
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C:\Windows\SysWOW64\arp.exe"arp" -a2⤵PID:732
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C:\Windows\SysWOW64\net.exe"net.exe" view2⤵
- Discovers systems in the same network
PID:4908
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 23282⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:2848
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4332
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s fdPHost1⤵PID:3024
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s upnphost1⤵PID:1548
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s FDResPub1⤵PID:4156