Analysis
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max time kernel
150s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 15:17
Static task
static1
Behavioral task
behavioral1
Sample
be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe
Resource
win10v2004-20240426-en
General
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Target
be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe
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Size
4.1MB
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MD5
5b17d470d77f5a67838d24ab56d74f96
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SHA1
846d4fa1226fa8581ffb29c764fef450fdab211c
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SHA256
be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe
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SHA512
7c2ff4671fb00f2ee2b732309a8d04e122226c2736b2277ada2b2b9670cf3838336c810b8000480e9f95f3afe21a33fceb505fc7faceac3c593a7abd900566b7
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SSDEEP
98304:r3/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTB:r3/aer8lIiPc9ySnggpxAJiIuBVpFii9
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1476-2-0x0000000004920000-0x000000000520B000-memory.dmp family_glupteba behavioral2/memory/1476-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1476-98-0x0000000004920000-0x000000000520B000-memory.dmp family_glupteba behavioral2/memory/1476-96-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1172-109-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1476-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1172-195-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-196-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-213-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-216-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-220-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-226-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-229-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-232-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-236-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-242-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-245-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-249-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/1156-252-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5088 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1156 csrss.exe 432 injector.exe 1056 windefender.exe 724 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab23-205.dat upx behavioral2/memory/1056-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/724-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1056-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/724-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/724-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 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 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 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 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3808 sc.exe -
pid Process 2080 powershell.exe 2800 powershell.exe 3908 powershell.exe 2860 powershell.exe 836 powershell.exe 4968 powershell.exe 5052 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 1552 schtasks.exe 4864 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.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,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2080 powershell.exe 2080 powershell.exe 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 2800 powershell.exe 2800 powershell.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 3908 powershell.exe 3908 powershell.exe 2860 powershell.exe 2860 powershell.exe 836 powershell.exe 836 powershell.exe 4968 powershell.exe 4968 powershell.exe 5052 powershell.exe 5052 powershell.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 1156 csrss.exe 1156 csrss.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 1156 csrss.exe 1156 csrss.exe 432 injector.exe 432 injector.exe 1156 csrss.exe 1156 csrss.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe 432 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2080 powershell.exe Token: SeDebugPrivilege 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Token: SeImpersonatePrivilege 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe Token: SeDebugPrivilege 2800 powershell.exe Token: SeDebugPrivilege 3908 powershell.exe Token: SeDebugPrivilege 2860 powershell.exe Token: SeDebugPrivilege 836 powershell.exe Token: SeDebugPrivilege 4968 powershell.exe Token: SeDebugPrivilege 5052 powershell.exe Token: SeSystemEnvironmentPrivilege 1156 csrss.exe Token: SeSecurityPrivilege 3808 sc.exe Token: SeSecurityPrivilege 3808 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1476 wrote to memory of 2080 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 80 PID 1476 wrote to memory of 2080 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 80 PID 1476 wrote to memory of 2080 1476 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 80 PID 1172 wrote to memory of 2800 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 86 PID 1172 wrote to memory of 2800 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 86 PID 1172 wrote to memory of 2800 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 86 PID 1172 wrote to memory of 5108 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 88 PID 1172 wrote to memory of 5108 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 88 PID 5108 wrote to memory of 5088 5108 cmd.exe 90 PID 5108 wrote to memory of 5088 5108 cmd.exe 90 PID 1172 wrote to memory of 3908 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 91 PID 1172 wrote to memory of 3908 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 91 PID 1172 wrote to memory of 3908 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 91 PID 1172 wrote to memory of 2860 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 93 PID 1172 wrote to memory of 2860 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 93 PID 1172 wrote to memory of 2860 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 93 PID 1172 wrote to memory of 1156 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 95 PID 1172 wrote to memory of 1156 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 95 PID 1172 wrote to memory of 1156 1172 be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe 95 PID 1156 wrote to memory of 836 1156 csrss.exe 96 PID 1156 wrote to memory of 836 1156 csrss.exe 96 PID 1156 wrote to memory of 836 1156 csrss.exe 96 PID 1156 wrote to memory of 4968 1156 csrss.exe 102 PID 1156 wrote to memory of 4968 1156 csrss.exe 102 PID 1156 wrote to memory of 4968 1156 csrss.exe 102 PID 1156 wrote to memory of 5052 1156 csrss.exe 104 PID 1156 wrote to memory of 5052 1156 csrss.exe 104 PID 1156 wrote to memory of 5052 1156 csrss.exe 104 PID 1156 wrote to memory of 432 1156 csrss.exe 106 PID 1156 wrote to memory of 432 1156 csrss.exe 106 PID 1056 wrote to memory of 3128 1056 windefender.exe 112 PID 1056 wrote to memory of 3128 1056 windefender.exe 112 PID 1056 wrote to memory of 3128 1056 windefender.exe 112 PID 3128 wrote to memory of 3808 3128 cmd.exe 113 PID 3128 wrote to memory of 3808 3128 cmd.exe 113 PID 3128 wrote to memory of 3808 3128 cmd.exe 113 -
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\be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe"C:\Users\Admin\AppData\Local\Temp\be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2080
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C:\Users\Admin\AppData\Local\Temp\be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.exe"C:\Users\Admin\AppData\Local\Temp\be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe.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:1172 -
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:2800
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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:5108 -
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:5088
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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:3908
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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:2860
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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:1156 -
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:836
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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:1552
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4028
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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:4968
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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:5052
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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:432
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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:4864
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1056 -
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:3128 -
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:3808
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:724
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
MD569d5fc7b44ff9fdab3125eb025a3b3e8
SHA18c1537db321c5f9c78985a025bc64ac82da6114e
SHA256462c8a9186fc909b3c23188c4eeca78203410e30fbe98036a6025bc3fca3c224
SHA51222ce339ce4eadb2b6e1ff8005d642d01167ecc23d507d94f53c03d25c2ab2b06db5779aac6a180e00ce1e8cee4412956b4cb55e958df407b8af4dcc4f5a75531
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5828b1056aafc8f798730b2aebf481a46
SHA195aad53f383d7f669a4babaefa0878c5a467bf3a
SHA256ca098b3b7f2064521ab39f90620cdf93fc5fb17ba0006ebd12f48e48bd9de944
SHA512516e9fdaa9c6093879b3ce3705ec4aabac5fa08ec3bfac35ee6f83004097ae620ba9b4fc27c533619543da3264eba4b4fbbfdf21c96e382fb19028144230adc1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56c3e209fa48b1d81193ef76a20e6edef
SHA160fa98397a77797c6d1942106ba4dd4b2f5ce3cc
SHA25635a85bb728632afbb078c64ac174eae5e57b75d34566f5bb87fb76626aee2bc2
SHA5121ecba4400b973e07f39007d33063d5a6a035be5d0091cae785b41cf7ea47136f1546248ab272c0c1b06b5e31b459f5e3615242fe49715fdc647198c9faf69ce9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57c9352541a1a1c7ede13afe5bbc74a29
SHA111f1796843c4d45afd8def2840a0c7a1eec9f259
SHA256710ac569e2e823e16f74c40f71481b15969617b74149222b0723f09c6ba07c86
SHA5122f5d97afb33f512ffbedc22919fe06a4915754c93b4df2580cbcb48725ba5ba634f89eeed3134d9f9a6e718b19b22826a88097763479ba97236c3aa29c4d6231
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f78528abba73086203058051b0a5431f
SHA13625e2651c71005d9fdd04a8e68d16ecb54f31c2
SHA25689e2068054934f84f50988caaf66264fd367ffc85751ba6fc963ae90de8145e2
SHA512a0b4c5ae601d76fc5b0d10a896c12b68f2a245483b41129407c66014205872b679fe4476cafe6bca8edcd6d58bcbb9be182d3d38c983a50e8cee6114d5cdb4f2
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Filesize
4.1MB
MD55b17d470d77f5a67838d24ab56d74f96
SHA1846d4fa1226fa8581ffb29c764fef450fdab211c
SHA256be890419b30e84595d5ac836458c54f80fc08f96cc5587dc2d99036c139870fe
SHA5127c2ff4671fb00f2ee2b732309a8d04e122226c2736b2277ada2b2b9670cf3838336c810b8000480e9f95f3afe21a33fceb505fc7faceac3c593a7abd900566b7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec