Analysis
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max time kernel
94s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-12-2024 20:12
Static task
static1
Behavioral task
behavioral1
Sample
d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe
Resource
win10v2004-20241007-en
General
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Target
d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe
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Size
881KB
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MD5
9049faba5517305c44bd5f28398fb6b9
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SHA1
036c6b32f3e7d7d689c9b4d482091eebcc669bfa
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SHA256
d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3
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SHA512
65a33506f970675775468f80b94a3f8bb2d3672e6fb08fc9f2e5107020095ca6d4bca927c59b72488e2ef4208a64a56ced7511ea14c0445cd50ea3ff9b827f6a
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SSDEEP
12288:I2wMm7l55+OeO+OeNhBBhhBBaELPA081o9baXpL3K+HDFgZUid4X9dCU5+Kazw4t:I2wMm7lfCIL3K+gY9dfcw4h3DX9X1
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\Decryptfiles.txt
Signatures
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\Decryptfiles.txt d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Decryptfiles.txt d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XPSUDTARW = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe" d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe -
Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 296 cmd.exe 4840 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4840 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeDebugPrivilege 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeDebugPrivilege 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeIncreaseQuotaPrivilege 1260 wmic.exe Token: SeSecurityPrivilege 1260 wmic.exe Token: SeTakeOwnershipPrivilege 1260 wmic.exe Token: SeLoadDriverPrivilege 1260 wmic.exe Token: SeSystemProfilePrivilege 1260 wmic.exe Token: SeSystemtimePrivilege 1260 wmic.exe Token: SeProfSingleProcessPrivilege 1260 wmic.exe Token: SeIncBasePriorityPrivilege 1260 wmic.exe Token: SeCreatePagefilePrivilege 1260 wmic.exe Token: SeBackupPrivilege 1260 wmic.exe Token: SeRestorePrivilege 1260 wmic.exe Token: SeShutdownPrivilege 1260 wmic.exe Token: SeDebugPrivilege 1260 wmic.exe Token: SeSystemEnvironmentPrivilege 1260 wmic.exe Token: SeRemoteShutdownPrivilege 1260 wmic.exe Token: SeUndockPrivilege 1260 wmic.exe Token: SeManageVolumePrivilege 1260 wmic.exe Token: 33 1260 wmic.exe Token: 34 1260 wmic.exe Token: 35 1260 wmic.exe Token: 36 1260 wmic.exe Token: SeIncreaseQuotaPrivilege 1260 wmic.exe Token: SeSecurityPrivilege 1260 wmic.exe Token: SeTakeOwnershipPrivilege 1260 wmic.exe Token: SeLoadDriverPrivilege 1260 wmic.exe Token: SeSystemProfilePrivilege 1260 wmic.exe Token: SeSystemtimePrivilege 1260 wmic.exe Token: SeProfSingleProcessPrivilege 1260 wmic.exe Token: SeIncBasePriorityPrivilege 1260 wmic.exe Token: SeCreatePagefilePrivilege 1260 wmic.exe Token: SeBackupPrivilege 1260 wmic.exe Token: SeRestorePrivilege 1260 wmic.exe Token: SeShutdownPrivilege 1260 wmic.exe Token: SeDebugPrivilege 1260 wmic.exe Token: SeSystemEnvironmentPrivilege 1260 wmic.exe Token: SeRemoteShutdownPrivilege 1260 wmic.exe Token: SeUndockPrivilege 1260 wmic.exe Token: SeManageVolumePrivilege 1260 wmic.exe Token: 33 1260 wmic.exe Token: 34 1260 wmic.exe Token: 35 1260 wmic.exe Token: 36 1260 wmic.exe Token: SeBackupPrivilege 1556 vssvc.exe Token: SeRestorePrivilege 1556 vssvc.exe Token: SeAuditPrivilege 1556 vssvc.exe Token: SeIncreaseQuotaPrivilege 3148 wmic.exe Token: SeSecurityPrivilege 3148 wmic.exe Token: SeTakeOwnershipPrivilege 3148 wmic.exe Token: SeLoadDriverPrivilege 3148 wmic.exe Token: SeSystemProfilePrivilege 3148 wmic.exe Token: SeSystemtimePrivilege 3148 wmic.exe Token: SeProfSingleProcessPrivilege 3148 wmic.exe Token: SeIncBasePriorityPrivilege 3148 wmic.exe Token: SeCreatePagefilePrivilege 3148 wmic.exe Token: SeBackupPrivilege 3148 wmic.exe Token: SeRestorePrivilege 3148 wmic.exe Token: SeShutdownPrivilege 3148 wmic.exe Token: SeDebugPrivilege 3148 wmic.exe Token: SeSystemEnvironmentPrivilege 3148 wmic.exe Token: SeRemoteShutdownPrivilege 3148 wmic.exe Token: SeUndockPrivilege 3148 wmic.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2552 wrote to memory of 1260 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 82 PID 2552 wrote to memory of 1260 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 82 PID 2552 wrote to memory of 3148 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 90 PID 2552 wrote to memory of 3148 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 90 PID 2552 wrote to memory of 296 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 92 PID 2552 wrote to memory of 296 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 92 PID 2552 wrote to memory of 296 2552 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 92 PID 296 wrote to memory of 4840 296 cmd.exe 94 PID 296 wrote to memory of 4840 296 cmd.exe 94 PID 296 wrote to memory of 4840 296 cmd.exe 94 -
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\d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe"C:\Users\Admin\AppData\Local\Temp\d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2552 -
\??\c:\Windows\system32\wbem\wmic.exec:\dJhERC\dJhE\..\..\Windows\dJhE\dJhE\..\..\system32\dJhE\dJhE\..\..\wbem\dJhE\dJhER\..\..\wmic.exe shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1260
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\??\c:\Windows\system32\wbem\wmic.exec:\ZObEyj\ZObE\..\..\Windows\ZObE\ZObE\..\..\system32\ZObE\ZObE\..\..\wbem\ZObE\ZObEy\..\..\wmic.exe shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3148
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C:\Windows\SysWOW64\cmd.execmd.exe /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:296 -
C:\Windows\SysWOW64\PING.EXEping 1.1.1.1 -n 1 -w 30003⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4840
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1556
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
MD5efd0aee26e0b13ea843c68c4115840d9
SHA10cd479b10eeaacc9aeba0a26796f85e27176efb1
SHA256fa84a8d0bcb4715788d3f58f4df88ede03340a5dfa73fbc7e2b8884d0e90b3e9
SHA512b56423f17b05209b31ea3543ed9b8929294fd644078d90dd32756acb9df3c57ab363b4ee3c9a201edd6c3ae870f16c53225ecc46cc682b230fc0a5aea8fc4d11