Analysis
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max time kernel
150s -
max time network
136s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 15:22
Static task
static1
Behavioral task
behavioral1
Sample
d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe
Resource
win10v2004-20240426-en
General
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Target
d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe
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Size
4.1MB
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MD5
66169f4786642c8c51d82e11d4fef1c0
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SHA1
4e0cfc005d8637d2d07daf7e1f2a18cab560e6cb
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SHA256
d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80
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SHA512
d195f38ab65b070dde4f58c95a18f2011fb2bafcb9a04eded2333a02d286abb36bc2bea22e4dde869a5c2583ec47b25b1c075336ad070ef079f074bfde2436ec
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SSDEEP
98304:QvzBhIm6zIE7SIO2RhCG9zRnSMmyRgCXxFQG9cd:mzBhDcIv8bCGbNmyXXxFQGyd
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/2072-2-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/2072-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2072-72-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2072-78-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/1620-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-194-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4848-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2916 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4848 csrss.exe 2928 injector.exe 4916 windefender.exe 4876 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab58-203.dat upx behavioral2/memory/4916-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4916-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4876-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4876-218-0x0000000000400000-0x00000000008DF000-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\"" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe File created C:\Windows\rss\csrss.exe d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1992 sc.exe -
pid Process 3068 powershell.exe 1076 powershell.exe 560 powershell.exe 3724 powershell.exe 2392 powershell.exe 2320 powershell.exe 240 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 4704 schtasks.exe 444 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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,-721 = "Central Pacific Daylight 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\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.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,-731 = "Fiji 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\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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,-161 = "Central Daylight 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" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-441 = "Arabian Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.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,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 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,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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,-105 = "Central Brazilian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.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,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.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\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.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,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 560 powershell.exe 560 powershell.exe 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 3724 powershell.exe 3724 powershell.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 2392 powershell.exe 2392 powershell.exe 2320 powershell.exe 2320 powershell.exe 240 powershell.exe 240 powershell.exe 3068 powershell.exe 3068 powershell.exe 1076 powershell.exe 1076 powershell.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 4848 csrss.exe 4848 csrss.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 4848 csrss.exe 4848 csrss.exe 2928 injector.exe 2928 injector.exe 4848 csrss.exe 4848 csrss.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 560 powershell.exe Token: SeDebugPrivilege 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Token: SeImpersonatePrivilege 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe Token: SeDebugPrivilege 3724 powershell.exe Token: SeDebugPrivilege 2392 powershell.exe Token: SeDebugPrivilege 2320 powershell.exe Token: SeDebugPrivilege 240 powershell.exe Token: SeDebugPrivilege 3068 powershell.exe Token: SeDebugPrivilege 1076 powershell.exe Token: SeSystemEnvironmentPrivilege 4848 csrss.exe Token: SeSecurityPrivilege 1992 sc.exe Token: SeSecurityPrivilege 1992 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2072 wrote to memory of 560 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 82 PID 2072 wrote to memory of 560 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 82 PID 2072 wrote to memory of 560 2072 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 82 PID 1620 wrote to memory of 3724 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 87 PID 1620 wrote to memory of 3724 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 87 PID 1620 wrote to memory of 3724 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 87 PID 1620 wrote to memory of 2952 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 89 PID 1620 wrote to memory of 2952 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 89 PID 2952 wrote to memory of 2916 2952 cmd.exe 91 PID 2952 wrote to memory of 2916 2952 cmd.exe 91 PID 1620 wrote to memory of 2392 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 92 PID 1620 wrote to memory of 2392 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 92 PID 1620 wrote to memory of 2392 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 92 PID 1620 wrote to memory of 2320 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 94 PID 1620 wrote to memory of 2320 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 94 PID 1620 wrote to memory of 2320 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 94 PID 1620 wrote to memory of 4848 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 96 PID 1620 wrote to memory of 4848 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 96 PID 1620 wrote to memory of 4848 1620 d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe 96 PID 4848 wrote to memory of 240 4848 csrss.exe 97 PID 4848 wrote to memory of 240 4848 csrss.exe 97 PID 4848 wrote to memory of 240 4848 csrss.exe 97 PID 4848 wrote to memory of 3068 4848 csrss.exe 102 PID 4848 wrote to memory of 3068 4848 csrss.exe 102 PID 4848 wrote to memory of 3068 4848 csrss.exe 102 PID 4848 wrote to memory of 1076 4848 csrss.exe 105 PID 4848 wrote to memory of 1076 4848 csrss.exe 105 PID 4848 wrote to memory of 1076 4848 csrss.exe 105 PID 4848 wrote to memory of 2928 4848 csrss.exe 107 PID 4848 wrote to memory of 2928 4848 csrss.exe 107 PID 4916 wrote to memory of 5084 4916 windefender.exe 113 PID 4916 wrote to memory of 5084 4916 windefender.exe 113 PID 4916 wrote to memory of 5084 4916 windefender.exe 113 PID 5084 wrote to memory of 1992 5084 cmd.exe 114 PID 5084 wrote to memory of 1992 5084 cmd.exe 114 PID 5084 wrote to memory of 1992 5084 cmd.exe 114 -
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\d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe"C:\Users\Admin\AppData\Local\Temp\d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:560
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C:\Users\Admin\AppData\Local\Temp\d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.exe"C:\Users\Admin\AppData\Local\Temp\d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80.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:1620 -
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:3724
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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:2952 -
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:2916
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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:2392
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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:2320
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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:4848 -
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:240
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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:4704
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3024
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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:3068
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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:1076
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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:2928
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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:444
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4916 -
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:5084 -
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:1992
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4876
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
MD58188ee4712f96ce4966925cfa681f293
SHA1062a8cf1cf95163868d0b1834aa840ad98484420
SHA256debf79e26b84607538b2d61956592a33120a2db0d6fdd9297ded4b8d42c7f515
SHA5129b5c709f36a22efb14c1843d41de12698c98e878d7df2393676671b2ff845d4007d291e8a18024c182500f3eafb5bb6c6821c55d10f50cde33925bfbbafcfdfa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d541eb0b80f8f99c951595304c29c008
SHA1e59f5b0b229466d04fe6eecffad815ebf7467a57
SHA2566003158a6224e1a052a69b8ac5d3203b5a0e9d1b2baba8639c36b870d7905989
SHA512a26f76e41a9ac0cccc9e9cfb8c8d2adf3401d1bde359755bfb179fd6ffa792a0192919868c6dcbb646e73fc2569ffebe249d37c96e29b05d6696f1dbf22c3c13
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56287c28f1d6d983ae917fcf3b1f8bdbf
SHA13969ab51ceede5b68b32430ed1d2feca01093a51
SHA2566032b4bd6c37ec74fb97a7e0a97b16d4217a2d1334e7ca12bb628853849295ed
SHA51208c61765a62bcdab7ed7ee18de088337d50e0d5962a1f5be6cb3aaf1619b89630c04ead170f175d4e487b9638f817b26f2c931a8df7070604f89e43541c93d9c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD513ef2eddfd3abbc99744f26dcfea7044
SHA1598b2627a3d962bf36bf23bca64ae95867a62bb2
SHA2569488e801cb5c2f846bd879d82fae2094e9d4dabb965aceb1d262cea0d99d7e9a
SHA51284acdbcabfb0be4c842038d6f65bd05d9206ce2a2c9c20899c1e4a470cc344bd4e3716ed825c318a1c9744dcfc64a9555c4a8186cd792603cb89836c1198ad0a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD500bfa9b8826708a54535a560780355ea
SHA1a4b162c95f6f9fb200056e3ca0077e22e1d54914
SHA256f48b576edf49abff78bf3af1e4218c005516e89d4c766e42c11531678cd88496
SHA51217e065d04b197fecdd8cd3ba1fcf3bbe05ff5cfde34c76a5d32d965d28756bfced7a08cf5f41c6d8a12687dfd6870b26d8d72f1a956d195a47a6d7797f2b0f84
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Filesize
4.1MB
MD566169f4786642c8c51d82e11d4fef1c0
SHA14e0cfc005d8637d2d07daf7e1f2a18cab560e6cb
SHA256d4a9c9ddfe34e1a0b1dea76ebbeb37a5a74e5eef08223a0cb4b11c07dacffe80
SHA512d195f38ab65b070dde4f58c95a18f2011fb2bafcb9a04eded2333a02d286abb36bc2bea22e4dde869a5c2583ec47b25b1c075336ad070ef079f074bfde2436ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec