Analysis
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max time kernel
35s -
max time network
143s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
15-06-2021 11:21
Static task
static1
Behavioral task
behavioral1
Sample
Install.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
Install.exe
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Size
1.4MB
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MD5
87b6aa9999f339367e81cece5164cc61
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SHA1
0f0cc9bae58961ceec44d77c09f7670b6e6dcd32
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SHA256
88d9141e63c5e2d05294b43d85ffc2604c3eda3b2cac69149743e3990b547212
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SHA512
f776a2f99d1446d010afa38a41d8401064329efa76b95c5f5150e7dc695105a834b286e71df6d349a9164936b4e57def370882e71f076ff1be310580b91b66a9
Malware Config
Signatures
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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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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Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1488 taskkill.exe -
Processes:
Install.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 Install.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 Install.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
Install.exetaskkill.exedescription pid process Token: SeCreateTokenPrivilege 1644 Install.exe Token: SeAssignPrimaryTokenPrivilege 1644 Install.exe Token: SeLockMemoryPrivilege 1644 Install.exe Token: SeIncreaseQuotaPrivilege 1644 Install.exe Token: SeMachineAccountPrivilege 1644 Install.exe Token: SeTcbPrivilege 1644 Install.exe Token: SeSecurityPrivilege 1644 Install.exe Token: SeTakeOwnershipPrivilege 1644 Install.exe Token: SeLoadDriverPrivilege 1644 Install.exe Token: SeSystemProfilePrivilege 1644 Install.exe Token: SeSystemtimePrivilege 1644 Install.exe Token: SeProfSingleProcessPrivilege 1644 Install.exe Token: SeIncBasePriorityPrivilege 1644 Install.exe Token: SeCreatePagefilePrivilege 1644 Install.exe Token: SeCreatePermanentPrivilege 1644 Install.exe Token: SeBackupPrivilege 1644 Install.exe Token: SeRestorePrivilege 1644 Install.exe Token: SeShutdownPrivilege 1644 Install.exe Token: SeDebugPrivilege 1644 Install.exe Token: SeAuditPrivilege 1644 Install.exe Token: SeSystemEnvironmentPrivilege 1644 Install.exe Token: SeChangeNotifyPrivilege 1644 Install.exe Token: SeRemoteShutdownPrivilege 1644 Install.exe Token: SeUndockPrivilege 1644 Install.exe Token: SeSyncAgentPrivilege 1644 Install.exe Token: SeEnableDelegationPrivilege 1644 Install.exe Token: SeManageVolumePrivilege 1644 Install.exe Token: SeImpersonatePrivilege 1644 Install.exe Token: SeCreateGlobalPrivilege 1644 Install.exe Token: 31 1644 Install.exe Token: 32 1644 Install.exe Token: 33 1644 Install.exe Token: 34 1644 Install.exe Token: 35 1644 Install.exe Token: SeDebugPrivilege 1488 taskkill.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Install.execmd.exedescription pid process target process PID 1644 wrote to memory of 328 1644 Install.exe cmd.exe PID 1644 wrote to memory of 328 1644 Install.exe cmd.exe PID 1644 wrote to memory of 328 1644 Install.exe cmd.exe PID 1644 wrote to memory of 328 1644 Install.exe cmd.exe PID 328 wrote to memory of 1488 328 cmd.exe taskkill.exe PID 328 wrote to memory of 1488 328 cmd.exe taskkill.exe PID 328 wrote to memory of 1488 328 cmd.exe taskkill.exe PID 328 wrote to memory of 1488 328 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Install.exe"C:\Users\Admin\AppData\Local\Temp\Install.exe"1⤵
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Windows\SysWOW64\cmd.execmd.exe /c taskkill /f /im chrome.exe2⤵
- Suspicious use of WriteProcessMemory
PID:328 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im chrome.exe3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1488
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