Analysis
-
max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
13/05/2024, 19:17
Static task
static1
Behavioral task
behavioral1
Sample
b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe
Resource
win10v2004-20240508-en
General
-
Target
b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe
-
Size
4.1MB
-
MD5
2ca4dd32072ab2c973a05ac34c088e6f
-
SHA1
f13c9c45dd210d530dc91dc99ada126ce82fddf4
-
SHA256
b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2
-
SHA512
ad58844471582ebe70de3c8c23be4b7dbaf57b1e3c6df172ced8db61028321097e095ce3a778f0fd6e27ef4e9f8764e2aed70ddf8fb6ae41513a36cba496674c
-
SSDEEP
49152:hvHCDSSa3hD42qGLSmY/7m0wOZef6/7XKNRZLDoULBsYgivTaJXJXiyJlvBT7gi7:hvHka3hrLY/a9UySgdYYX4jJQi91
Malware Config
Signatures
-
Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/2528-2-0x0000000004CA0000-0x000000000558B000-memory.dmp family_glupteba behavioral2/memory/2528-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2528-39-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2528-54-0x0000000004CA0000-0x000000000558B000-memory.dmp family_glupteba behavioral2/memory/2528-55-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2528-77-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4776-76-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4776-128-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-150-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-204-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-215-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-217-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-221-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-224-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-227-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-229-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-233-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-236-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2268-239-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2888 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2268 csrss.exe 4128 injector.exe 1552 windefender.exe 3780 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9ad-207.dat upx behavioral2/memory/1552-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3780-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1552-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3780-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3780-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 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 -
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 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe File created C:\Windows\rss\csrss.exe b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 464 sc.exe -
pid Process 2884 powershell.exe 1788 powershell.exe 2944 powershell.exe 1640 powershell.exe 2388 powershell.exe 4064 powershell.exe 1724 powershell.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 2016 schtasks.exe 4596 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1724 powershell.exe 1724 powershell.exe 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 2884 powershell.exe 2884 powershell.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 1788 powershell.exe 1788 powershell.exe 2944 powershell.exe 2944 powershell.exe 1640 powershell.exe 1640 powershell.exe 2388 powershell.exe 2388 powershell.exe 4064 powershell.exe 4064 powershell.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 2268 csrss.exe 2268 csrss.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 2268 csrss.exe 2268 csrss.exe 4128 injector.exe 4128 injector.exe 2268 csrss.exe 2268 csrss.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe 4128 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1724 powershell.exe Token: SeDebugPrivilege 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Token: SeImpersonatePrivilege 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe Token: SeDebugPrivilege 2884 powershell.exe Token: SeDebugPrivilege 1788 powershell.exe Token: SeDebugPrivilege 2944 powershell.exe Token: SeDebugPrivilege 1640 powershell.exe Token: SeDebugPrivilege 2388 powershell.exe Token: SeDebugPrivilege 4064 powershell.exe Token: SeSystemEnvironmentPrivilege 2268 csrss.exe Token: SeSecurityPrivilege 464 sc.exe Token: SeSecurityPrivilege 464 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2528 wrote to memory of 1724 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 78 PID 2528 wrote to memory of 1724 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 78 PID 2528 wrote to memory of 1724 2528 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 78 PID 4776 wrote to memory of 2884 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 83 PID 4776 wrote to memory of 2884 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 83 PID 4776 wrote to memory of 2884 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 83 PID 4776 wrote to memory of 3512 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 85 PID 4776 wrote to memory of 3512 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 85 PID 3512 wrote to memory of 2888 3512 cmd.exe 87 PID 3512 wrote to memory of 2888 3512 cmd.exe 87 PID 4776 wrote to memory of 1788 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 88 PID 4776 wrote to memory of 1788 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 88 PID 4776 wrote to memory of 1788 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 88 PID 4776 wrote to memory of 2944 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 90 PID 4776 wrote to memory of 2944 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 90 PID 4776 wrote to memory of 2944 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 90 PID 4776 wrote to memory of 2268 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 92 PID 4776 wrote to memory of 2268 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 92 PID 4776 wrote to memory of 2268 4776 b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe 92 PID 2268 wrote to memory of 1640 2268 csrss.exe 93 PID 2268 wrote to memory of 1640 2268 csrss.exe 93 PID 2268 wrote to memory of 1640 2268 csrss.exe 93 PID 2268 wrote to memory of 2388 2268 csrss.exe 99 PID 2268 wrote to memory of 2388 2268 csrss.exe 99 PID 2268 wrote to memory of 2388 2268 csrss.exe 99 PID 2268 wrote to memory of 4064 2268 csrss.exe 101 PID 2268 wrote to memory of 4064 2268 csrss.exe 101 PID 2268 wrote to memory of 4064 2268 csrss.exe 101 PID 2268 wrote to memory of 4128 2268 csrss.exe 103 PID 2268 wrote to memory of 4128 2268 csrss.exe 103 PID 1552 wrote to memory of 412 1552 windefender.exe 109 PID 1552 wrote to memory of 412 1552 windefender.exe 109 PID 1552 wrote to memory of 412 1552 windefender.exe 109 PID 412 wrote to memory of 464 412 cmd.exe 110 PID 412 wrote to memory of 464 412 cmd.exe 110 PID 412 wrote to memory of 464 412 cmd.exe 110 -
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
-
C:\Users\Admin\AppData\Local\Temp\b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe"C:\Users\Admin\AppData\Local\Temp\b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1724
-
-
C:\Users\Admin\AppData\Local\Temp\b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.exe"C:\Users\Admin\AppData\Local\Temp\b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2.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:4776 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2884
-
-
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:3512 -
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:2888
-
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1788
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2944
-
-
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:2268 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1640
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2016
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1736
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2388
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4064
-
-
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:4128
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4596
-
-
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1552 -
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:412 -
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:464
-
-
-
-
-
-
C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3780
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
Loading Replay Monitor...
Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5acadbb71d82074762685b7c685892826
SHA12a6e77fbe1c4974496767d6199d475f4c8c29c30
SHA256a70c7eb0354256e760b7108fa5088870cb1e784c4c2b3590f760b9e3612fc4cb
SHA5122c404c56b74032d70ef3c7cfb690074f6ff76f45efb4d69832061a76fa49b8f601464fb85b2104d17fc5da9eacf453957ad04ce9aaca6c660c970155393fa99a
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58d2e6ee98acca9d3be2bbb2f87eb7fce
SHA15d3b6bed6b5b3d2dbaac8d5110e90671535367fe
SHA25602a92711a3749abb4dcb405751fcca5135c50cab68abd61290ea69a79e2cbd1b
SHA5124df555919dcaf7562d96d53e3fc065543b14354df10f7403ab7bdf4c2676b0a95f85c89b067a8cc36f0e1a0b1db72b6b8b7515cff05a9558541adae580535efa
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a6d4160a1c733276d3ac5fb553058f5a
SHA1699670b6669c9ed8626e7df216e62e23d32bb438
SHA25654d229e1decfa091bb625a5dddc324b1a07119f102bca1a7dba4bdf8f08a3655
SHA5127d5e1e3c2579e0159a4b5f01546fa997043039bc4e9054d00dee6b43f20627fd5a2c4dea46cc671f3a8e61028ed9341d84b8ca000d7a3848cad800e9b8ccf42e
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bc8c4ebff50c1c205e48f1e6df4732e0
SHA15049fbb1eae08249d5a323d8bc877a4c7eefa1c9
SHA256b7de88fb39f6e934ad2bf395dd96df4d4e73de9804dcc7167c1bd05b3dd61a9d
SHA512e7e0b20baca711c69045feae8642e7448483ec029131b87272b1919446e9265fbf0133358d967f2bcf4f65d3dd59d91597553951643330cec3c417acd0e9686c
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573c5afc4bd3a91179d3726b361c9dae0
SHA1916b2b3d104970c33c28c5a27588b13a744f9c79
SHA2565e14778acc63a2b1d9021338264cb068ed61c04990a6326660a6261e123edc4a
SHA5121386f0fcf6505efa69dfbb13e60eac6c7b17eb5e759075e235a0ef9df18c355ad57aa52a9da8b0f499196941272a664225f43b6c89502c84035e7739e9762f43
-
Filesize
4.1MB
MD52ca4dd32072ab2c973a05ac34c088e6f
SHA1f13c9c45dd210d530dc91dc99ada126ce82fddf4
SHA256b6c83759d8b82d73148d72be7d52e369ad18667fb766284c8ba9c4ac3036c2a2
SHA512ad58844471582ebe70de3c8c23be4b7dbaf57b1e3c6df172ced8db61028321097e095ce3a778f0fd6e27ef4e9f8764e2aed70ddf8fb6ae41513a36cba496674c
-
Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec