Analysis
-
max time kernel
150s -
max time network
130s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 21:49
Static task
static1
Behavioral task
behavioral1
Sample
b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe
Resource
win10v2004-20240508-en
General
-
Target
b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe
-
Size
4.1MB
-
MD5
2e84198c63eb13a1e450baf1ff6e5029
-
SHA1
9967d8063ec607ef63a65657f55cefed6cd66154
-
SHA256
b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31
-
SHA512
452bbefe34bf464c25aa8560fe4555686f1b3eaf5b8a69894a7328d89b20fd0f6c5bcd4606cb78a59d240c19c5237c346bf1816d936c65b9c2d1142c9d01fff0
-
SSDEEP
98304:kX33DbWGkLHuFK+TwQmBC6reQ4TTNXYvI8KgvjrB0rXr:kXPWAwQyCdJYw8KggXr
Malware Config
Signatures
-
Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4196-2-0x0000000004960000-0x000000000524B000-memory.dmp family_glupteba behavioral2/memory/4196-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4196-72-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4196-78-0x0000000004960000-0x000000000524B000-memory.dmp family_glupteba behavioral2/memory/4196-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4064-125-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-202-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-234-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-240-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-244-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-250-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-254-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2932-256-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 388 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2932 csrss.exe 2728 injector.exe 3172 windefender.exe 660 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f9-205.dat upx behavioral2/memory/3172-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/660-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3172-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/660-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/660-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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.
-
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 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 -
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 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe File created C:\Windows\rss\csrss.exe b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe File created C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4088 sc.exe -
pid Process 3196 powershell.exe 1800 powershell.exe 3792 powershell.exe 4856 powershell.exe 1116 powershell.exe 1576 powershell.exe 4976 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 3404 schtasks.exe 1456 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight 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" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" 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,-741 = "New Zealand 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\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight 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\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula 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,-731 = "Fiji Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3196 powershell.exe 3196 powershell.exe 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 1800 powershell.exe 1800 powershell.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 3792 powershell.exe 3792 powershell.exe 4856 powershell.exe 4856 powershell.exe 1116 powershell.exe 1116 powershell.exe 1576 powershell.exe 1576 powershell.exe 4976 powershell.exe 4976 powershell.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2932 csrss.exe 2932 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2932 csrss.exe 2932 csrss.exe 2728 injector.exe 2728 injector.exe 2932 csrss.exe 2932 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3196 powershell.exe Token: SeDebugPrivilege 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Token: SeImpersonatePrivilege 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Token: SeDebugPrivilege 1800 powershell.exe Token: SeDebugPrivilege 3792 powershell.exe Token: SeDebugPrivilege 4856 powershell.exe Token: SeDebugPrivilege 1116 powershell.exe Token: SeDebugPrivilege 1576 powershell.exe Token: SeDebugPrivilege 4976 powershell.exe Token: SeSystemEnvironmentPrivilege 2932 csrss.exe Token: SeSecurityPrivilege 4088 sc.exe Token: SeSecurityPrivilege 4088 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4196 wrote to memory of 3196 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 81 PID 4196 wrote to memory of 3196 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 81 PID 4196 wrote to memory of 3196 4196 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 81 PID 4064 wrote to memory of 1800 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 86 PID 4064 wrote to memory of 1800 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 86 PID 4064 wrote to memory of 1800 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 86 PID 4064 wrote to memory of 1320 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 88 PID 4064 wrote to memory of 1320 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 88 PID 1320 wrote to memory of 388 1320 cmd.exe 90 PID 1320 wrote to memory of 388 1320 cmd.exe 90 PID 4064 wrote to memory of 3792 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 91 PID 4064 wrote to memory of 3792 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 91 PID 4064 wrote to memory of 3792 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 91 PID 4064 wrote to memory of 4856 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 93 PID 4064 wrote to memory of 4856 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 93 PID 4064 wrote to memory of 4856 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 93 PID 4064 wrote to memory of 2932 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 95 PID 4064 wrote to memory of 2932 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 95 PID 4064 wrote to memory of 2932 4064 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 95 PID 2932 wrote to memory of 1116 2932 csrss.exe 96 PID 2932 wrote to memory of 1116 2932 csrss.exe 96 PID 2932 wrote to memory of 1116 2932 csrss.exe 96 PID 2932 wrote to memory of 1576 2932 csrss.exe 102 PID 2932 wrote to memory of 1576 2932 csrss.exe 102 PID 2932 wrote to memory of 1576 2932 csrss.exe 102 PID 2932 wrote to memory of 4976 2932 csrss.exe 104 PID 2932 wrote to memory of 4976 2932 csrss.exe 104 PID 2932 wrote to memory of 4976 2932 csrss.exe 104 PID 2932 wrote to memory of 2728 2932 csrss.exe 106 PID 2932 wrote to memory of 2728 2932 csrss.exe 106 PID 3172 wrote to memory of 3408 3172 windefender.exe 112 PID 3172 wrote to memory of 3408 3172 windefender.exe 112 PID 3172 wrote to memory of 3408 3172 windefender.exe 112 PID 3408 wrote to memory of 4088 3408 cmd.exe 113 PID 3408 wrote to memory of 4088 3408 cmd.exe 113 PID 3408 wrote to memory of 4088 3408 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
-
C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe"C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3196
-
-
C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe"C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.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:4064 -
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:1800
-
-
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:1320 -
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:388
-
-
-
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:3792
-
-
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:4856
-
-
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:2932 -
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:1116
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3404
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3388
-
-
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:1576
-
-
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:4976
-
-
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:2728
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1456
-
-
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3172 -
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:3408 -
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:4088
-
-
-
-
-
-
C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:660
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50cc04f28e6af0ac567b2c7d3032c689d
SHA17815a21c64cfa8cc58b5fef9c303c6740720fe51
SHA25646ad4c9c5ce43ed433b5ccf292e84686ef07b6f86130160166caf1f50131b665
SHA512f6583a7e08b9b2baa92259eca505ab142e1ea364326e20098e8dd1b09cd5528004c5aaa36e58874e5ccaede52486cfc08f904171dfccd4478d66484cf290004b
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bbf566232fe166cab1161b9c12d2d113
SHA1230a54a7205ef7c281ed19f9fa38ff0d3d0613aa
SHA2565645787c6394bcee55f78d2d4c1d72a67f37ebc2aab9ad1ffd055be83933c811
SHA512e9f3204287b0463e86dc7f6380816d955ccabf51ee08a391a1ad30d6a17332127ad112610cb0b560c177e2bba5cf333d2332596cf733547bfb3336daff97dde3
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b353b1ecd452f411dc2444c134a49f42
SHA192b178f5e21ac0d09c7f191b523179ab05da8cfa
SHA25631b00ed2fb668e511f8cd639e6b0bbd4a800c0501fa80bd18488d855722bb161
SHA512eaf9b850ffd76957d71b9005c122cc5c095c846ce77f3e4a65a61c2c192ad4f815e2ca9c3f159779e529196296eea43523dad01e9ad1cf5580e442b7316d07ce
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b9961ff62e03ceb387b7c7d9a6a10a0a
SHA1a68f5c95bef96f0d92f9de67a58273208e98bd0f
SHA2561b4acc9e0aeb7985894143e5a40243194df979f3770b5f55f17c541f09b922c0
SHA512df546d7844f78315e86340de642a3ea3726f90e99da9778d76c1422348dc3ce7155da3a6be3c89c4a0baa073f789e5ba5911be0fbb5c1f15928d5d1285452481
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d7e4018da64a2285d2e43d26293e4eed
SHA1e74ffbab3523777731c65df7918db37366e847ea
SHA25622798c490f470128f70c02b30f175c7b4f012e1a82cd885be1ab29324548f19f
SHA512c01170b40af59e8e715c797ad1b4c8443e8f2cf04f80470bf32000ceaa93f8c1dc8035b0f7084af7d7c78031cfbe26e76ae00ff8dc55423d8f872b414b0fe6fa
-
Filesize
4.1MB
MD52e84198c63eb13a1e450baf1ff6e5029
SHA19967d8063ec607ef63a65657f55cefed6cd66154
SHA256b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31
SHA512452bbefe34bf464c25aa8560fe4555686f1b3eaf5b8a69894a7328d89b20fd0f6c5bcd4606cb78a59d240c19c5237c346bf1816d936c65b9c2d1142c9d01fff0
-
Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec