Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
22/04/2024, 10:04
Static task
static1
Behavioral task
behavioral1
Sample
b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe
Resource
win10v2004-20240412-en
General
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Target
b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe
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Size
4.2MB
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MD5
00ccd105383a053946d8fde4c99e4ea2
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SHA1
ea4982e81d2a978e2eb9c7ade430500b7c409673
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SHA256
b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416
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SHA512
0bd8ea5569632228f909f1183dab2e04b5c19c0d48d44813cd19be5813dbc891c833c4b4164dc2720f944b7d3685a085420af3f03f4625d5c034a2ded9f618e6
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SSDEEP
98304:e6bGcTxbPOTep5ySarFN57/PmIfwVMKO/nFXCyzFhv19:NdPO6nyS+fdHmIfOO/nFXCy319
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4932-2-0x00000000052A0000-0x0000000005B8B000-memory.dmp family_glupteba behavioral2/memory/4932-3-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4932-52-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/4932-54-0x00000000052A0000-0x0000000005B8B000-memory.dmp family_glupteba behavioral2/memory/1540-57-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1540-88-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1540-138-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1540-148-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-208-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-242-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-254-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-258-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-262-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-266-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-269-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-273-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-277-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-281-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/1408-285-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2816 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1408 csrss.exe 4492 injector.exe 4668 windefender.exe 4460 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a970-245.dat upx behavioral2/memory/4668-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4460-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4460-263-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
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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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe File created C:\Windows\rss\csrss.exe b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe File created C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4364 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2040 schtasks.exe 2816 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4056 powershell.exe 4056 powershell.exe 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 4588 powershell.exe 4588 powershell.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 3920 powershell.exe 3920 powershell.exe 1636 powershell.exe 1636 powershell.exe 4804 powershell.exe 4804 powershell.exe 5040 powershell.exe 5040 powershell.exe 3756 powershell.exe 3756 powershell.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 1408 csrss.exe 1408 csrss.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 1408 csrss.exe 1408 csrss.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 1408 csrss.exe 1408 csrss.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe 4492 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4056 powershell.exe Token: SeDebugPrivilege 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Token: SeImpersonatePrivilege 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe Token: SeDebugPrivilege 4588 powershell.exe Token: SeDebugPrivilege 3920 powershell.exe Token: SeDebugPrivilege 1636 powershell.exe Token: SeDebugPrivilege 4804 powershell.exe Token: SeDebugPrivilege 5040 powershell.exe Token: SeDebugPrivilege 3756 powershell.exe Token: SeSystemEnvironmentPrivilege 1408 csrss.exe Token: SeSecurityPrivilege 4364 sc.exe Token: SeSecurityPrivilege 4364 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4932 wrote to memory of 4056 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 80 PID 4932 wrote to memory of 4056 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 80 PID 4932 wrote to memory of 4056 4932 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 80 PID 1540 wrote to memory of 4588 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 85 PID 1540 wrote to memory of 4588 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 85 PID 1540 wrote to memory of 4588 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 85 PID 1540 wrote to memory of 3120 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 87 PID 1540 wrote to memory of 3120 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 87 PID 3120 wrote to memory of 2816 3120 cmd.exe 107 PID 3120 wrote to memory of 2816 3120 cmd.exe 107 PID 1540 wrote to memory of 3920 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 90 PID 1540 wrote to memory of 3920 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 90 PID 1540 wrote to memory of 3920 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 90 PID 1540 wrote to memory of 1636 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 92 PID 1540 wrote to memory of 1636 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 92 PID 1540 wrote to memory of 1636 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 92 PID 1540 wrote to memory of 1408 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 94 PID 1540 wrote to memory of 1408 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 94 PID 1540 wrote to memory of 1408 1540 b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe 94 PID 1408 wrote to memory of 4804 1408 csrss.exe 95 PID 1408 wrote to memory of 4804 1408 csrss.exe 95 PID 1408 wrote to memory of 4804 1408 csrss.exe 95 PID 1408 wrote to memory of 5040 1408 csrss.exe 101 PID 1408 wrote to memory of 5040 1408 csrss.exe 101 PID 1408 wrote to memory of 5040 1408 csrss.exe 101 PID 1408 wrote to memory of 3756 1408 csrss.exe 103 PID 1408 wrote to memory of 3756 1408 csrss.exe 103 PID 1408 wrote to memory of 3756 1408 csrss.exe 103 PID 1408 wrote to memory of 4492 1408 csrss.exe 105 PID 1408 wrote to memory of 4492 1408 csrss.exe 105 PID 4668 wrote to memory of 4952 4668 windefender.exe 111 PID 4668 wrote to memory of 4952 4668 windefender.exe 111 PID 4668 wrote to memory of 4952 4668 windefender.exe 111 PID 4952 wrote to memory of 4364 4952 cmd.exe 112 PID 4952 wrote to memory of 4364 4952 cmd.exe 112 PID 4952 wrote to memory of 4364 4952 cmd.exe 112 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe"C:\Users\Admin\AppData\Local\Temp\b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4056
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C:\Users\Admin\AppData\Local\Temp\b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe"C:\Users\Admin\AppData\Local\Temp\b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4588
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:3120 -
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
PID:2816
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3920
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1636
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1408 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4804
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2040
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4756
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5040
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3756
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4492
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2816
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4668 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:4364
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4460
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c7c4d6a99562173e856a5020c03db6b0
SHA11e0b22c61f969abafebad2ee26b8bddd6af2b404
SHA256ddddabba05d8fc2c4c23f163c9e725c1f2a7697da4c367c9a6e1ee449c984ebf
SHA512691c644f3479c879e217b914cce4a6338a19970f76bfcdeee3c1af744c19e583e6921bfecbb567044d2291e02552c39a11c6438f4d4ded346b1f9fa4b2bfa75b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5762c891469964aa45cef07fe822e8458
SHA173549984e0746bd45d716aecb7ef964fd969fbc8
SHA256b573e5d6ffa5d7b3f19eb50f241ac22c3b9271b274c1bc2d64d47426dd9619d3
SHA51237ec8533fbe816cabca08d786f0c23eff0d30686fea4dfc5cefd4b803f7668e8a762566721452ed90ac78abca3f864b5703b194ae4ceefb4050334ae211e4269
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5778778ce4721321a51d4919c6b9c0eae
SHA1e8c92c13fb1b299f37f85019f1d8b0dc22bcd030
SHA256278fbde097cb4370a2805c3e6bc4cf78517c8080d511b8e04f4ec333c8ad9182
SHA512019a14845259aaec11f2b4c6b7b2d72080340830c28cdfd79f1a87deb5994cf8ffda8fd9b16afb366dc6dbc75dfff4b59787d965fadcb70f80ad768ef13c7612
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD531eba93f165f4c9f7b88748052cf47c9
SHA157b2d7ae8f3f6f21cc063990bccdfbb4a2b902fc
SHA256de0ed03ba0df4517802df3882b5d0b9bb27c34baebfd0cc976903a269cda6519
SHA5129a2edc36e038b43f24d04d2a700c3aed750736e0ebc3d7951b4c6bc46457ba221745e0739cef607db64e71d300707882f24e6e55708b6725982456faa79a4fb7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57491282b4720e065a324c10a334f0f59
SHA1a654c5acf020b62a5f36fd0cd2d6c1cae0b2ef4c
SHA256397edbb40981bf2a6852467264c1fd610f60132bfa379e3e052ccead04577bd4
SHA5123e5a4c913f556b471293c036ac7506286a66c81dc9228a34d2c9e4e56c9b8dbdaf1444cf2b3cb317099f8998aa78f39c8f584ddc7e61e362a54cdef5e5aa5626
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Filesize
4.2MB
MD500ccd105383a053946d8fde4c99e4ea2
SHA1ea4982e81d2a978e2eb9c7ade430500b7c409673
SHA256b0a9df12fe59dd3d7beb1b95f0dfbe6ae5d364692b28dec45c6d633ca3a33416
SHA5120bd8ea5569632228f909f1183dab2e04b5c19c0d48d44813cd19be5813dbc891c833c4b4164dc2720f944b7d3685a085420af3f03f4625d5c034a2ded9f618e6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec