Analysis
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max time kernel
131s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/05/2024, 23:40
Static task
static1
Behavioral task
behavioral1
Sample
b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe
Resource
win10v2004-20240508-en
General
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Target
b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe
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Size
4.1MB
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MD5
582d1f04a6baf535d024aa21df81465c
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SHA1
7f135be67ad28d2cdcdaddc5a3a4df85358b0e9a
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SHA256
b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f
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SHA512
26019a1cf99229afa879bb4563f35f7c29ec02858e87fdf842dccc473242afe0a97974326fbd5b9aac13ad00e5ea515a39c35ca9aa8d75124a5b5fd75945f7e3
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SSDEEP
98304:Psj80k8u7e4te7QNzi5j0edbbHwu+w5lmM0XQnx:Pg9u7eueIzil0SbrHmM0k
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/1304-2-0x0000000004E20000-0x000000000570B000-memory.dmp family_glupteba behavioral2/memory/1304-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1304-52-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/1304-54-0x0000000004E20000-0x000000000570B000-memory.dmp family_glupteba behavioral2/memory/1304-81-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3472-80-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3472-131-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-152-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-206-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-218-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-222-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-226-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-230-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-238-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-242-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/5088-246-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4536 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 5088 csrss.exe 4656 injector.exe 3552 windefender.exe 3884 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa0f-209.dat upx behavioral2/memory/3552-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3884-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3552-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3884-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3884-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3884-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.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 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3740 sc.exe -
pid Process 2792 powershell.exe 3888 powershell.exe 8 powershell.exe 4892 powershell.exe 3192 powershell.exe 752 powershell.exe 1556 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 4248 schtasks.exe 1912 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.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 (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa 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\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.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\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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,-1971 = "Belarus Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 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,-412 = "E. Africa Standard 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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2792 powershell.exe 2792 powershell.exe 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3888 powershell.exe 3888 powershell.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 8 powershell.exe 8 powershell.exe 4892 powershell.exe 4892 powershell.exe 3192 powershell.exe 3192 powershell.exe 752 powershell.exe 752 powershell.exe 1556 powershell.exe 1556 powershell.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 5088 csrss.exe 5088 csrss.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 5088 csrss.exe 5088 csrss.exe 4656 injector.exe 4656 injector.exe 5088 csrss.exe 5088 csrss.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe 4656 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2792 powershell.exe Token: SeDebugPrivilege 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Token: SeImpersonatePrivilege 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe Token: SeDebugPrivilege 3888 powershell.exe Token: SeDebugPrivilege 8 powershell.exe Token: SeDebugPrivilege 4892 powershell.exe Token: SeDebugPrivilege 3192 powershell.exe Token: SeDebugPrivilege 752 powershell.exe Token: SeDebugPrivilege 1556 powershell.exe Token: SeSystemEnvironmentPrivilege 5088 csrss.exe Token: SeSecurityPrivilege 3740 sc.exe Token: SeSecurityPrivilege 3740 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1304 wrote to memory of 2792 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 83 PID 1304 wrote to memory of 2792 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 83 PID 1304 wrote to memory of 2792 1304 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 83 PID 3472 wrote to memory of 3888 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 88 PID 3472 wrote to memory of 3888 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 88 PID 3472 wrote to memory of 3888 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 88 PID 3472 wrote to memory of 1036 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 90 PID 3472 wrote to memory of 1036 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 90 PID 1036 wrote to memory of 4536 1036 cmd.exe 92 PID 1036 wrote to memory of 4536 1036 cmd.exe 92 PID 3472 wrote to memory of 8 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 93 PID 3472 wrote to memory of 8 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 93 PID 3472 wrote to memory of 8 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 93 PID 3472 wrote to memory of 4892 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 95 PID 3472 wrote to memory of 4892 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 95 PID 3472 wrote to memory of 4892 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 95 PID 3472 wrote to memory of 5088 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 97 PID 3472 wrote to memory of 5088 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 97 PID 3472 wrote to memory of 5088 3472 b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe 97 PID 5088 wrote to memory of 3192 5088 csrss.exe 98 PID 5088 wrote to memory of 3192 5088 csrss.exe 98 PID 5088 wrote to memory of 3192 5088 csrss.exe 98 PID 5088 wrote to memory of 752 5088 csrss.exe 104 PID 5088 wrote to memory of 752 5088 csrss.exe 104 PID 5088 wrote to memory of 752 5088 csrss.exe 104 PID 5088 wrote to memory of 1556 5088 csrss.exe 106 PID 5088 wrote to memory of 1556 5088 csrss.exe 106 PID 5088 wrote to memory of 1556 5088 csrss.exe 106 PID 5088 wrote to memory of 4656 5088 csrss.exe 108 PID 5088 wrote to memory of 4656 5088 csrss.exe 108 PID 3552 wrote to memory of 3452 3552 windefender.exe 114 PID 3552 wrote to memory of 3452 3552 windefender.exe 114 PID 3552 wrote to memory of 3452 3552 windefender.exe 114 PID 3452 wrote to memory of 3740 3452 cmd.exe 115 PID 3452 wrote to memory of 3740 3452 cmd.exe 115 PID 3452 wrote to memory of 3740 3452 cmd.exe 115 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe"C:\Users\Admin\AppData\Local\Temp\b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2792
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C:\Users\Admin\AppData\Local\Temp\b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.exe"C:\Users\Admin\AppData\Local\Temp\b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f.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:3472 -
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:3888
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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:1036 -
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:4536
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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:8
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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:4892
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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:5088 -
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:3192
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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:4248
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3580
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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:752
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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:1556
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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:4656
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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:1912
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3552 -
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:3452 -
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:3740
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3884
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5499d755dfbd77e712a6bba413f910b8b
SHA15c44e9456cebc8c8abf98bceff01873846ba0699
SHA256e1d4563ce6853e06aa709b9add24d759ffcf2a0bbb9efe46bde67fc82875374c
SHA51299a70d7f1a0409f625b227f5db930caef5fa5de600ca21209f44acf087d23dc04e8746d2ae2e5692d3d5d6656d2cf41f8b1dabda52b6b1994b1cae74855ec7b8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52d078881492ff745df5bc76aff772fbd
SHA19d92061965f7712bb3c2c0c035ba06bf979c495a
SHA2563b348aa1e0e3b07fd87602056f9195379fdceb76f6510d7148c31db9e56323ef
SHA5124bd40708b3f66ff7c4ecc3a20823b2b6670e132291a609384560a1edfd9b18a3d68924e08ecbd26aaa1086609ac51f9adaf31b3a88383614d6589ec9eed9d9d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fbc034c88730465f3c0bd855ffa96872
SHA112b996168b17daa5f5ff21a7fc98aa0b3b168778
SHA256cb1834b6a99636290ba1ae8ef2b9333b5ad74715583beb02dcadfa52b8e2c68f
SHA5125a92d9e08b8ecc5dd651ec0d73c761b765298403448952464d1bbcf119eab05b71a3b9153951f532c4a2f727e4d4536d52e6c16c34ce01c4eaa1e7571a1cade3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5827c990f3968b3fc9488f1e2f3b94022
SHA1ab09036ff68fed868bbc6bedd4f785d27d38da29
SHA256a37bc78213a7909ead853b0297fce6c4e9eb95535b90eccb6029a4a3782ea11d
SHA512d0d4d98ccbfc90d5f1bb20a4b6dc574723354434475cb0014e132bf687390e851659b3cd82e30a73323f530d980926d02f97828e9b06016427f4bf0501b774ab
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f5f91ce6963951b81cb20ff4359d7734
SHA19b899a786bf61fe4f093d367f1d3ba6cdaa713e3
SHA256f79900b0e67f98637148057d1ed098f9860d83c00e635473400852400fad6b93
SHA5129d7147f0eca3a5f5f7276ee6fcf9b658d34cbe7b06f96bcc82841f03af8c2b87742db09b2ff8bc6f96186fb3bee5029bf4aaa976805236132680c4aa615a26b1
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Filesize
4.1MB
MD5582d1f04a6baf535d024aa21df81465c
SHA17f135be67ad28d2cdcdaddc5a3a4df85358b0e9a
SHA256b588f5cc23596ad4fe106d15181f0b9b68695b74355c11c6a1177e4db01b8a9f
SHA51226019a1cf99229afa879bb4563f35f7c29ec02858e87fdf842dccc473242afe0a97974326fbd5b9aac13ad00e5ea515a39c35ca9aa8d75124a5b5fd75945f7e3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec