Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
21-04-2024 20:43
Static task
static1
Behavioral task
behavioral1
Sample
f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe
Resource
win10v2004-20240412-en
General
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Target
f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe
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Size
4.1MB
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MD5
a3fd1b72845b44749b1965a388d91efe
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SHA1
711b273ce038c462f9bc8138eabb18f07ae7b4a0
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SHA256
f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd
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SHA512
c12b3522abd9c669d74da52496acccb3098f40b31387d79e47a7679980bc7ec00e76b86d44b5a39f40737e1f8a3f8788c541eb42bf6d1f0fecc4be5ddb11feb7
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SSDEEP
98304:gwsyYpLI30hNm0X97sfQhuFOzbEeYixTYaktM3XAOoYGnm0lEN:mllzc0tsfv+41ixUfgAfRVe
Malware Config
Signatures
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Glupteba payload 16 IoCs
resource yara_rule behavioral2/memory/2064-2-0x0000000006710000-0x0000000006FFB000-memory.dmp family_glupteba behavioral2/memory/2064-76-0x0000000006710000-0x0000000006FFB000-memory.dmp family_glupteba behavioral2/memory/2064-113-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/4952-174-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-239-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-250-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-254-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-258-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-262-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-266-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-270-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-274-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-278-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-282-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-286-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba behavioral2/memory/5084-290-0x0000000000400000-0x0000000004417000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4772 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 5084 csrss.exe 1640 injector.exe 2552 windefender.exe 3876 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9b4-243.dat upx behavioral2/memory/2552-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3876-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3876-260-0x0000000000400000-0x00000000008DF000-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\"" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.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 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 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 -
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 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe File created C:\Windows\rss\csrss.exe f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification 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 2004 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 2932 schtasks.exe 4772 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4132 powershell.exe 4132 powershell.exe 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 2624 powershell.exe 2624 powershell.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 860 powershell.exe 860 powershell.exe 1392 powershell.exe 1392 powershell.exe 5028 powershell.exe 5028 powershell.exe 1972 powershell.exe 1972 powershell.exe 1716 powershell.exe 1716 powershell.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 5084 csrss.exe 5084 csrss.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 5084 csrss.exe 5084 csrss.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 5084 csrss.exe 5084 csrss.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4132 powershell.exe Token: SeDebugPrivilege 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Token: SeImpersonatePrivilege 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe Token: SeDebugPrivilege 2624 powershell.exe Token: SeDebugPrivilege 860 powershell.exe Token: SeDebugPrivilege 1392 powershell.exe Token: SeDebugPrivilege 5028 powershell.exe Token: SeDebugPrivilege 1972 powershell.exe Token: SeDebugPrivilege 1716 powershell.exe Token: SeSystemEnvironmentPrivilege 5084 csrss.exe Token: SeSecurityPrivilege 2004 sc.exe Token: SeSecurityPrivilege 2004 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2064 wrote to memory of 4132 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 82 PID 2064 wrote to memory of 4132 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 82 PID 2064 wrote to memory of 4132 2064 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 82 PID 4952 wrote to memory of 2624 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 88 PID 4952 wrote to memory of 2624 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 88 PID 4952 wrote to memory of 2624 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 88 PID 4952 wrote to memory of 3448 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 90 PID 4952 wrote to memory of 3448 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 90 PID 3448 wrote to memory of 4772 3448 cmd.exe 92 PID 3448 wrote to memory of 4772 3448 cmd.exe 92 PID 4952 wrote to memory of 860 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 93 PID 4952 wrote to memory of 860 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 93 PID 4952 wrote to memory of 860 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 93 PID 4952 wrote to memory of 1392 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 95 PID 4952 wrote to memory of 1392 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 95 PID 4952 wrote to memory of 1392 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 95 PID 4952 wrote to memory of 5084 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 97 PID 4952 wrote to memory of 5084 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 97 PID 4952 wrote to memory of 5084 4952 f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe 97 PID 5084 wrote to memory of 5028 5084 csrss.exe 98 PID 5084 wrote to memory of 5028 5084 csrss.exe 98 PID 5084 wrote to memory of 5028 5084 csrss.exe 98 PID 5084 wrote to memory of 1972 5084 csrss.exe 103 PID 5084 wrote to memory of 1972 5084 csrss.exe 103 PID 5084 wrote to memory of 1972 5084 csrss.exe 103 PID 5084 wrote to memory of 1716 5084 csrss.exe 106 PID 5084 wrote to memory of 1716 5084 csrss.exe 106 PID 5084 wrote to memory of 1716 5084 csrss.exe 106 PID 5084 wrote to memory of 1640 5084 csrss.exe 108 PID 5084 wrote to memory of 1640 5084 csrss.exe 108 PID 2552 wrote to memory of 5100 2552 windefender.exe 114 PID 2552 wrote to memory of 5100 2552 windefender.exe 114 PID 2552 wrote to memory of 5100 2552 windefender.exe 114 PID 5100 wrote to memory of 2004 5100 cmd.exe 115 PID 5100 wrote to memory of 2004 5100 cmd.exe 115 PID 5100 wrote to memory of 2004 5100 cmd.exe 115 -
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\f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe"C:\Users\Admin\AppData\Local\Temp\f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4132
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C:\Users\Admin\AppData\Local\Temp\f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.exe"C:\Users\Admin\AppData\Local\Temp\f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd.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:4952 -
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:2624
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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:3448 -
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:4772
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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:860
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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:1392
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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:5084 -
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:5028
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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:2932
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4800
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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:1972
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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:1716
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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:1640
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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:4772
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2552 -
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:5100 -
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:2004
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3876
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
MD5b344a5e5ada265ae82ae9e6753d18c4d
SHA1298fc13b0f87234b8211b09f31eace3a018707e1
SHA2562d3a3dbb0d73b9691c0093fbb0d65eff4e51b45d4a29e85f0319b93a03da6bb9
SHA512e7f5a20d0beac97b021071c42f5448a99aef1cb9f4d0e7b7fadd3fea2940f2b87ef47c1443b5ab2a9d4aa78f9318b83687af71820e6993812cdb8c970742bffc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD518d97bb2295d4a639e1be78d3d9df5c8
SHA13919a4651ce112950efb1fc08e69b934ce95ca60
SHA256d9481e6da76929cde0cdaef0d164050be0ca54855ad07b3acb63019fa3e0835b
SHA5125a451cf69857c7658c3c4bd8f3b571b215a486aa0af4ade0c18985e0db7f0df183882ecfa41187c68bdc623900e0c38aba9c6a1ea0b0bb2094d96c0cc2004259
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD555efa593bc017c68d7221c3e7e7b23f8
SHA16384ba38c703176c3b6b09d8de57360f02e4eaa4
SHA25635256196c5a9b756029a0db49b9dfc6246af0d52455c1c595d73ed75201f0907
SHA51212937ddec4fbbeb2d4d702f4c18c735efecb08880d16a2a794f7ad572a0e1ccc3b92ae9ab102af4682a4f3072ad3faf20630122e5899560c48cac25ed4811af4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b338ed5703be7c8ee2412911f0d57aec
SHA1f2d2996a31cce218d69951afecbe826f63e9ffe6
SHA256b1805408971a4fde523de9a8d418e67f7fdbc1ce981679ab1b25711242bdb9a9
SHA51201f434e42adec8c18814cd2934cc405b4297f675b3987cdd5603292c6b41d8e3e8c3cc3071eb65f977da8e149a227828420f205765f3774935a43e5f5f9035fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59990244a510fc403f0f32d3ab5043e4a
SHA1320225dde2f558ba8c36b388f80ddaf52d5043bd
SHA2568138d2b870d511edde39315dbb32bba7912586d068a72637a54fba85fe3f44db
SHA51235cb511e32061cd5d71d8f08d91dbf3ba65bda6261acaefa0f2c4b725e665135329c103eaab37208dc454fc1bf9b940b3cab5546f121d9daffae6417fbfdc55f
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Filesize
4.1MB
MD5a3fd1b72845b44749b1965a388d91efe
SHA1711b273ce038c462f9bc8138eabb18f07ae7b4a0
SHA256f4e4b26568fe1e57bc24f9419571c39494c28e613b196a87a5a90d4f27ff5edd
SHA512c12b3522abd9c669d74da52496acccb3098f40b31387d79e47a7679980bc7ec00e76b86d44b5a39f40737e1f8a3f8788c541eb42bf6d1f0fecc4be5ddb11feb7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec