Analysis
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max time kernel
95s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15/12/2024, 04:08
Static task
static1
Behavioral task
behavioral1
Sample
d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe
Resource
win7-20241023-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\Windows\Start Menu\Programs\Startup\Decryptfiles.txt d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\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-1-5-21-2045521122-590294423-3465680274-1000\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\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 File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\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 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3552 cmd.exe 284 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 284 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeDebugPrivilege 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeDebugPrivilege 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeIncreaseQuotaPrivilege 3236 wmic.exe Token: SeSecurityPrivilege 3236 wmic.exe Token: SeTakeOwnershipPrivilege 3236 wmic.exe Token: SeLoadDriverPrivilege 3236 wmic.exe Token: SeSystemProfilePrivilege 3236 wmic.exe Token: SeSystemtimePrivilege 3236 wmic.exe Token: SeProfSingleProcessPrivilege 3236 wmic.exe Token: SeIncBasePriorityPrivilege 3236 wmic.exe Token: SeCreatePagefilePrivilege 3236 wmic.exe Token: SeBackupPrivilege 3236 wmic.exe Token: SeRestorePrivilege 3236 wmic.exe Token: SeShutdownPrivilege 3236 wmic.exe Token: SeDebugPrivilege 3236 wmic.exe Token: SeSystemEnvironmentPrivilege 3236 wmic.exe Token: SeRemoteShutdownPrivilege 3236 wmic.exe Token: SeUndockPrivilege 3236 wmic.exe Token: SeManageVolumePrivilege 3236 wmic.exe Token: 33 3236 wmic.exe Token: 34 3236 wmic.exe Token: 35 3236 wmic.exe Token: 36 3236 wmic.exe Token: SeIncreaseQuotaPrivilege 3236 wmic.exe Token: SeSecurityPrivilege 3236 wmic.exe Token: SeTakeOwnershipPrivilege 3236 wmic.exe Token: SeLoadDriverPrivilege 3236 wmic.exe Token: SeSystemProfilePrivilege 3236 wmic.exe Token: SeSystemtimePrivilege 3236 wmic.exe Token: SeProfSingleProcessPrivilege 3236 wmic.exe Token: SeIncBasePriorityPrivilege 3236 wmic.exe Token: SeCreatePagefilePrivilege 3236 wmic.exe Token: SeBackupPrivilege 3236 wmic.exe Token: SeRestorePrivilege 3236 wmic.exe Token: SeShutdownPrivilege 3236 wmic.exe Token: SeDebugPrivilege 3236 wmic.exe Token: SeSystemEnvironmentPrivilege 3236 wmic.exe Token: SeRemoteShutdownPrivilege 3236 wmic.exe Token: SeUndockPrivilege 3236 wmic.exe Token: SeManageVolumePrivilege 3236 wmic.exe Token: 33 3236 wmic.exe Token: 34 3236 wmic.exe Token: 35 3236 wmic.exe Token: 36 3236 wmic.exe Token: SeBackupPrivilege 1844 vssvc.exe Token: SeRestorePrivilege 1844 vssvc.exe Token: SeAuditPrivilege 1844 vssvc.exe Token: SeDebugPrivilege 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeDebugPrivilege 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe Token: SeIncreaseQuotaPrivilege 1148 wmic.exe Token: SeSecurityPrivilege 1148 wmic.exe Token: SeTakeOwnershipPrivilege 1148 wmic.exe Token: SeLoadDriverPrivilege 1148 wmic.exe Token: SeSystemProfilePrivilege 1148 wmic.exe Token: SeSystemtimePrivilege 1148 wmic.exe Token: SeProfSingleProcessPrivilege 1148 wmic.exe Token: SeIncBasePriorityPrivilege 1148 wmic.exe Token: SeCreatePagefilePrivilege 1148 wmic.exe Token: SeBackupPrivilege 1148 wmic.exe Token: SeRestorePrivilege 1148 wmic.exe Token: SeShutdownPrivilege 1148 wmic.exe Token: SeDebugPrivilege 1148 wmic.exe Token: SeSystemEnvironmentPrivilege 1148 wmic.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3544 wrote to memory of 3236 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 83 PID 3544 wrote to memory of 3236 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 83 PID 3544 wrote to memory of 1148 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 104 PID 3544 wrote to memory of 1148 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 104 PID 3544 wrote to memory of 3552 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 105 PID 3544 wrote to memory of 3552 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 105 PID 3544 wrote to memory of 3552 3544 d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3.exe 105 PID 3552 wrote to memory of 284 3552 cmd.exe 108 PID 3552 wrote to memory of 284 3552 cmd.exe 108 PID 3552 wrote to memory of 284 3552 cmd.exe 108 -
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:3544 -
\??\c:\Windows\system32\wbem\wmic.exec:\xNDeIC\xNDe\..\..\Windows\xNDe\xNDe\..\..\system32\xNDe\xNDe\..\..\wbem\xNDe\xNDeI\..\..\wmic.exe shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3236
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\??\c:\Windows\system32\wbem\wmic.exec:\LIAVpz\LIAV\..\..\Windows\LIAV\LIAV\..\..\system32\LIAV\LIAV\..\..\wbem\LIAV\LIAVp\..\..\wmic.exe shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1148
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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:3552 -
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:284
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1844
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
MD5569afa37422433062906be9eab3c94d3
SHA1d8371d9fdb4f3649adc3be77de6cad2e8cd36856
SHA2564ffcb98e042ba816544078bdaf543c6251a77a5eaee8a82996a30cbe911bc20f
SHA512a5ea1d7fe25ca2cdd194dc0d12a257a72cf6e9ee1ffbbcbbe6e3f0523cc1b6bac4d167147ee086961de526ee3d491b65d96efd30035c8b9eb4f686080f7cbe9b